Xantrex Technology Portable Generator PV225S 480 P User Manual
PV225S-480-P  
Operation and Maintenance Manual  
PV225S 225 kW  
Grid-Tied  
Photovoltaic  
Inverter  
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PV225S 225 kW Grid-Tied  
Photovoltaic Inverter  
Operation and Maintenance Manual  
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About Xantrex  
Xantrex Technology Inc. is a world-leading supplier of advanced power electronics and controls with products from  
50 watt mobile units to one MW utility-scale systems for wind, solar, batteries, fuel cells, microturbines, and backup  
power applications in both grid-connected and stand-alone systems. Xantrex products include inverters, battery  
chargers, programmable power supplies, and variable speed drives that convert, supply, control, clean, and distribute  
electrical power.  
Trademarks  
PV225S 225 kW Grid-Tied Photovoltaic Inverter is a trademark of Xantrex International. Xantrex is a registered  
trademark of Xantrex International.  
Other trademarks, registered trademarks, and product names are the property of their respective owners and are used  
herein for identification purposes only.  
Notice of Copyright  
PV225S 225 kW Grid-Tied Photovoltaic Inverter Operation and Maintenance Manual© August 2005 Xantrex  
International. All rights reserved.  
Disclaimer  
UNLESS SPECIFICALLY AGREED TO IN WRITING, XANTREX TECHNOLOGY INC. (“XANTREX”)  
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY  
TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.  
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT,  
INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH  
INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.  
Date and Revision  
August 2005 Revision B  
Part Number  
152607  
Contact Information  
Telephone: 1 800 670 0707 (toll free North America)  
1 360 925 5097 (direct)  
Fax:  
1 800 994 7828 (toll free North America)  
1 360 925 5143 (direct)  
Email:  
Web:  
[email protected]  
www.xantrex.com  
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About This Manual  
Purpose  
The purpose of this Operation and Maintenance Manual is to provide explanations  
and procedures for operating, maintaining, and troubleshooting the PV225S 225  
kW Grid-Tied Photovoltaic Inverter. Installation instructions are available in the  
PV225S 225 kW Grid-tied Photovoltaic Inverter Planning and Installation  
Manual.  
Scope  
This Manual provides safety guidelines and information about operating and  
troubleshooting the unit.  
Audience  
This Manual is intended for anyone who needs to operate the PV225S 225 kW  
Grid-Tied Photovoltaic Inverter. Operators must be familiar with all the safety  
regulations pertaining to operating high-voltage equipment as dictated by local  
code. Operators must also have a complete understanding of this equipment’s  
features and functions.  
Organization  
This Manual is organized into five chapters and one appendix.  
Chapter 1, “Introduction” contains information about the features and functions of  
the PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
Chapter 2, “Operation” contains information on the basic operation of the  
PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
Chapter 3, “Commissioning” contains information on safely commissioning the  
PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
Chapter 4, “Troubleshooting” contains information and procedures for  
troubleshooting the PV225S 225 kW Grid-Tied Photovoltaic Inverter. It provides  
descriptions of common situations and errors that may occur and provides  
possible solutions for resolving fault conditions. It also provides instructions for  
clearing faults manually, if required.  
Chapter 5, “Preventative Maintenance” contains information and procedures for  
performing preventative maintenance on the PV225S 225 kW Grid-Tied  
Photovoltaic Inverter.  
Appendix A provides the environmental and electrical specifications for the  
PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
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About This Manual  
Conventions Used  
The following conventions are used in this guide.  
WARNING  
Warnings identify conditions or practices that could result in personal injury or loss of life.  
CAUTION  
Cautions identify conditions or practices that could result in damage to the unit or other  
equipment.  
Important: These notes describe things which are important for you to know, but not as  
serious as a caution or warning.  
This Manual contains information for the PV225S-480-P 225 kW Grid-Tied  
Photovoltaic Inverter. Throughout the manual it will be referred to as the PV225S,  
unless otherwise noted.  
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About This Manual  
Abbreviations and Acronyms  
CCU2  
CFM  
CW  
Converter Control Unit 2  
Cubic Feet per Minute  
Clockwise  
DSP  
Digital Signal Processor  
Field Programmable Gate Array  
Graphical User Interface  
FPGA  
GUI  
IEEE  
IGBT  
IPM  
Institute of Electrical and Electronics Engineers  
Insulated Gate Bipolar Transistor  
Intelligent Power Module  
1000 circular mils  
kcmil  
LAN  
POTS  
PSL  
Local Area Network  
Plain Old Telephone Service  
Phase-Shift Loop  
PV  
Photovoltaic  
UFCU  
Universal Frontpanel Control Unit  
Related Information  
You can find more information about Xantrex Technology Inc. as well as its  
products and services at www.xantrex.com.  
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Important Safety Instructions  
SAVE THESE INSTRUCTIONS - DO NOT DISCARD  
This manual contains important safety instructions for the PV225S that must be  
followed during installation and maintenance procedures.  
WARNING: Shock Hazard  
Read and keep this Operation and Maintenance Manual for future reference.  
Before installing the PV225S, read all instructions, cautionary markings, and all other  
appropriate sections of this manual. Failure to adhere to these warnings could result in  
severe shock or possible death. Exercise extreme caution at all times to prevent accidents.  
WARNING: Shock Hazard  
The PV225S enclosures contain exposed high voltage conductors. The enclosure doors  
should remain closed with the latches tightened, except during maintenance or testing.  
These servicing instructions are for use by qualified personnel who meet all local and state  
code requirements for licensing and training for the installation of Electrical Power  
Systems with AC and DC voltage to 600 volts. To reduce the risk of electric shock, do not  
perform any servicing other than that specified in the installation instructions unless you  
are qualified to do so. Do not open the cabinet doors if extreme moisture is present (rain or  
heavy dew).  
WARNING: Lethal Voltage  
In order to remove all sources of voltage from the PV225S, the incoming power must be  
de-energized at the source. This may be done at the main utility circuit breaker and by  
opening the AC Disconnect and the DC Disconnect Switches on the PV225S. Review the  
system configuration to determine all of the possible sources of energy. In addition, allow  
5 minutes for the DC bus capacitors, located on the ceiling of the cabinet, to discharge  
after removing power.  
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Safety  
General Safety Precautions  
1. When installing the PV225S use only components recommended or sold by  
Xantrex. Doing otherwise may result in a risk of fire, electric shock, injury to  
persons, and will void the warranty.  
2. Do not attempt to operate the PV225S if it has been dropped, or received more  
than cosmetic damage during transport or shipping. If the PV225S is  
damaged, or suspected to be damaged, see the Warranty section of this  
manual.  
3. To reduce the risk of electrical shock, lock-out and tag the PV225S before  
attempting any maintenance, service, or cleaning.  
Personal Safety  
Follow these instructions to ensure your safety while working with the PV225S.  
Safety Equipment  
Authorized service personnel must be equipped with standard safety equipment  
including the following:  
•
•
•
•
•
•
Safety glasses  
Ear protection  
Steel-toed safety boots  
Safety hard hats  
Padlocks and tags  
Appropriate meter to verify that the circuits are de-energized  
(600 Vac and DC rated, minimum)  
Check local safety regulations for other requirements.  
Wiring Requirements  
1. All wiring methods and materials shall be in accordance with the National  
Electrical Code ANSI/NFPA 70. When sizing conductors and conduits  
interfacing to the PV225S, both shall be in accordance with the National  
Electric Code ANSI/NFPA 70, as well as all state and local code  
requirements.  
2. Use copper conductors only with insulation rated for 90 °C.  
3. The PV225S has a three-phase output. It is marked with this symbol:  
4. The AC power conductor wiring interfacing with the AC terminals in the  
Transformer Enclosure are located at T6-X1, T6-X2, and T6-X3. These  
terminals should be tightened to a torque value of 420 in-lb (47.5 Nm).  
Conductors terminated to these terminals must use a crimp-on type ring  
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Safety  
terminal or compression lug. The terminals can accommodate up to two  
conductors per phase. See the PV225S 225 kW Grid-tied Photovoltaic Inverter  
Planning and Installation Manual for the location of these terminals.  
5. The AC power conductor wiring interfacing with the AC terminals in the  
Main Inverter Enclosure are located at TB5, TB6, and TB7. These terminals  
are to be tightened to a torque value of 375 in-lb (42.4 Nm). The terminals  
will accept a conductor size of 350 kcmil and can accommodate up to six  
conductors per phase. See Figure 5-1 on page 5–4 for the location of these  
terminals.  
6. The AC power conductor wiring interfacing with the AC terminals in the  
AC Interface Enclosure are located at S1-2T1, S1-4T2, and S1-6T3. These  
terminals should be tightened to a torque value of 310 in-lb (35.0 Nm). See  
Figure 5-2 on page 5–4 for the location of these terminals. Also see the  
cautionary note in the PV225S 225 kW Grid-tied Photovoltaic Inverter  
Planning and Installation Manual regarding hardware length.  
7. The AC neutral conductor from the utility is terminated in the AC Interface  
Enclosure at the TB11 terminal. This terminal requires the use of a crimp-on  
type ring terminal or compression-type lug and should be tightened to a  
torque value of 228 in-lb (25.7 Nm). See Figure 5-2 on page 5–4 for the  
location of these terminals.  
8. The DC power conductor wiring interfacing with the DC terminals at S2-6,  
K2-6T3, and TB4 are to be tightened to a torque value of 600 in-lbs  
(67.8 Nm). These terminals will accept a conductor size of 600 kcmil, and  
can accommodate up to four conductors per pole at S2-6 and K2-6T3 and up  
to two conductors at TB4. Keep these cables together as much as possible and  
ensure that both cables pass through the same knockout and conduit fittings,  
thus allowing any inductive currents to cancel. See Figure 5-3 on page 5–5 for  
the location of these terminals.  
9. This product is intended to be installed as part of a permanently grounded  
electrical system per the National Electric Code ANSI/NFPA 70. A copper  
ground rod must be installed within three feet of the PV225S enclosure. This  
is the single point earth ground for the inverter system. The single point  
ground for the system is to be made at the AC ground bus bar (TB12) in the  
AC Interface Enclosure. This terminal requires the use of a crimp-on type ring  
terminal or compression-type lug and should be tightened to a torque value of  
420 in-lb (47.5 Nm).  
10. The equipment grounds on the PV225S is marked with this symbol:  
11. AC overcurrent protection for the utility interconnect (Grid-tie) must be  
provided by the installers as part of the PV225S installation.  
CAUTION: Fire Hazard  
In accordance with the National Electrical Code, ANSI/NFPA 70, connect only to a circuit  
provided with 400 amperes maximum branch circuit overcurrent protection for the  
PV225S.  
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Safety  
Operational Safety Procedures  
Never work alone when servicing this equipment. A team of two is required until  
the equipment is properly de-energized, locked-out and tagged, and verified de-  
energized with a meter.  
Thoroughly inspect the equipment prior to energizing. Verify that no tools or  
equipment have inadvertently been left behind.  
Lockout and Tag  
Safety requirements mandate that this equipment not be serviced while energized.  
Power sources for the PV225S must be locked-out and tagged prior to servicing.  
Each energy source should have a padlock and tag installed on each energy source  
prior to servicing.  
WARNING: Shock Hazard  
Review the system schematic for the installation to verify that all available energy sources  
are de-energized. DC bus voltage may also be present. Be sure to wait the full 5 minutes to  
allow the capacitors to discharge completely.  
The PV225S can be energized from both the AC source and the DC source. To  
ensure that the inverter is de-energized prior to servicing, lockout and tag the  
PV225S using the following procedure.  
1. Open, lockout, and tag the incoming power at the utility main circuit breaker.  
2. Open, lockout, and tag the AC Disconnect Switch (S1) on AC interface  
assembly. See Figure 1-8 on page 1–12 for the location of the AC Disconnect  
Switch.  
3. Open, lockout, and tag the DC Disconnect Switch (S2) on DC interface  
assembly. See Figure 1-8 on page 1–12 for the location of the DC Disconnect  
Switch.  
4. Using a confirmed, accurate meter, verify all power to the inverter is de-  
energized. A confirmed, accurate meter must be verified on a known voltage  
before use. Ensure that all incoming energy sources are de-energized by  
checking the following locations.  
a) Inverter Terminals: TB5, TB6, TB7 (Phase A, B, C)  
See Figure 5-1 on page 5–4.  
b) Utility Terminals: Top of S1-2T1, S1-4T2, S1-6T3  
See Figure 5-2 on page 5–4.  
c) PV Terminals: Bottom of S2-6, K2-6T3, TB4 (PV+, PV-, GND)  
See Figure 5-3 on page 5–5.  
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Safety  
De-Energize/Isolation Procedure  
The following procedure should be followed to de-energize the PV225S for  
maintenance.  
WARNING  
The terminals of the DC input may be energized if the PV arrays are energized. In  
addition, allow 5 minutes for all capacitors within the main enclosure to discharge after  
disconnecting the PV225S from AC and DC sources.  
To isolate the PV225S:  
1. Turn the ON/OFF switch to the OFF position.  
2. Open the DC Disconnect Switch.  
3. Open the AC Disconnect Switch.  
4. Open the utility connection circuit breaker.  
5. Install lockout devices on the utility connection circuit breaker and DC  
Disconnect Switch.  
Interconnection Standards Compliance  
The PV225S has been tested and listed by Underwriters Laboratories to be in  
compliance with UL 1741 Static Inverters And Charge Controllers For Use In  
Photovoltaic Power Systems, as well as IEEE-929-2000 Recommended Practice  
For Utility Interface of Photovoltaic (PV) Systems.  
IEEE-929-2000 provides guidance regarding equipment and functions necessary  
to ensure compatible operation of photovoltaic systems which are connected in  
parallel with the electric utility.  
UL1741 is the standard applied by Underwriters Laboratory to the PV225S to  
verify it meets the recommendations of IEEE-929-2000.  
Refer to both documents for details of these recommendations and test  
procedures.  
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Contents  
Important Safety Instructions- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -vii  
1
Introduction  
Operation Features- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2  
Fixed Unity Power Factor Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–2  
Peak Power Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–3  
Dynamic DC Minimum Operating Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4  
Utility Voltage/Frequency Fault Automatic Reset - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4  
Safety Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5  
Anti-Island Protection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5  
PV Ground Fault Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5  
DC Over-voltage Detection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–5  
Physical Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6  
Main Inverter Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7  
Power Distribution Panel - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7  
Converter Control Unit (CCU2) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7  
Power Electronics Matrices - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7  
Inductor Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–7  
DC Interface Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8  
Transformer Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8  
AC Interface Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8  
Communications Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–9  
Operator Interface Controls- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10  
Main Enclosure Door Interlock Switch - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10  
On/Off Switch - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–11  
AC and DC Disconnect Switches - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–12  
Communication Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–12  
System Status and Fault Reporting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–13  
Data Logging - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–13  
Communication Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–14  
Universal Front Panel Control Unit (UFCU) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–14  
PC Connection Methods - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–15  
POTS Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16  
Wireless Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16  
Ethernet LAN Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17  
Direct Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17  
GUI Software Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–18  
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Contents  
2
Operation  
Description of System Operation- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2  
Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2  
Faults - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–2  
Operating States - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4  
Power Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4  
Transition - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–4  
Shutdown - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5  
Fault - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5  
Manual Current - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5  
Matrix Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5  
Automatic Sleep Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–5  
Operator Interface- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6  
UFCU Keypad Operation and LCD Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–6  
LCD Display - Initialization Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7  
Standard Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7  
Menu Structure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–8  
Read Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–9  
Write Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–15  
Commanding Goal State Changes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–20  
Setting the Date and Time - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–21  
Manual State Transitions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–22  
Automatic State Transitions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–22  
Auto-restart Feature - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–23  
Energize Procedure (Startup) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–24  
Computer Communications with the PV225S - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–25  
Installing the Graphic User Interface (GUI) Software - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26  
Minimum System Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26  
Starting the Software Setup Program - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26  
Starting the Setup Program Using Autorun - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26  
Starting Setup Manually - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–26  
Starting Setup From a Command Prompt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–27  
Model Specific Software Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–28  
Running the GUI - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–31  
Remote/LAN Connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–31  
Direct Connection - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–32  
GUI Configuration - Adding Inverters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–33  
GUI Help - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–37  
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Contents  
3
Commissioning  
Commissioning Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–2  
Starting the Commissioning Test File - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–2  
Serial Number - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3  
Verify AC Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3  
Verify DC Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–3  
Inspect Inductor Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4  
Apply Grid Voltage - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4  
Front Panel Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–4  
Establish Communications with the GUI - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–5  
Confirm AC Operational Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–5  
Confirm DC Operational Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–6  
Confirm Power Tracker Configuration Operational Parameters - - - - - - - - - - - - - - - - - - - - - 3–6  
Verify Door Interlock Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–6  
Matrix Test - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–6  
Operate Inverter - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–7  
Completed Commissioning - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3–7  
4
5
Troubleshooting  
Faults and Fault Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–2  
General Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–2  
Clearing Faults Manually - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3  
Fault Code Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4  
Preventative Maintenance  
Maintenance Safety - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–2  
Operational Safety Procedures - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–2  
De-Energize/Isolation Procedure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–2  
Lockout and Tag - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–3  
Periodic Maintenance- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6  
Monthly Intervals or As Required - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6  
Aluminum Extrusion Heatsinks - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6  
Fan Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6  
Internal Circulation Fan - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6  
Inductor Enclosure Cooling Fans - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–6  
Six-month Intervals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7  
Enclosure Seals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7  
Electrical Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7  
Inductor Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–7  
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Contents  
A
Specifications  
System Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–2  
Environmental Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–2  
Electrical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–3  
Over Voltage, Under Voltage and Frequency Ranges - - - - - - - - - - - - - - - - - - - - - - - - - - - A–3  
Wire Gauge and Torque Requirements - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–4  
Warranty and Product Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - WA–1  
Index - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - IX–1  
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Figures  
Figure 1-1 Maximum Peak Power Tracking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–4  
Figure 1-2 PV225S Major Components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–6  
Figure 1-3 DC Interface Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–8  
Figure 1-4 AC Interface Enclosure and Transformer Enclosure - - - - - - - - - - - - - - - - - - - - - - - - - 1–9  
Figure 1-5 PC Connections in the Communications Enclosure- - - - - - - - - - - - - - - - - - - - - - - - - - 1–9  
Figure 1-6 PV225S Operator Interface Components- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–10  
Figure 1-7 On/Off Switch (S3) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–11  
Figure 1-8 AC and DC Disconnect Switches- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–12  
Figure 1-9 LCD Display and UFCU Location - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–14  
Figure 1-10 PC Connections in the Communications Enclosure- - - - - - - - - - - - - - - - - - - - - - - - - 1–15  
Figure 1-11 POTS Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16  
Figure 1-12 Wireless Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–16  
Figure 1-13 LAN Access- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17  
Figure 1-14 Direct Access - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1–17  
Figure 2-1 Operating States Flow Chart - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–3  
Figure 2-2 The Universal Front Panel Control Unit (UFCU) and LCD - - - - - - - - - - - - - - - - - - - - 2–6  
Figure 2-3 Initialization Screens - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–7  
Figure 2-4 Operator Interface Menu Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–8  
Figure 2-5 Scrolling through the Read Menu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–10  
Figure 2-6 Read-by-ID Feature- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–13  
Figure 2-7 State Transition Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–20  
Figure 2-8 LCD showing Fault Code - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–23  
Figure 2-9 GUI Interface Main Menu Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–25  
Figure 2-10 Staring Setup from a Command Prompt - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–27  
Figure 2-11 GUI Splash Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–28  
Figure 2-12 GUI Setup Welcome Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–28  
Figure 2-13 GUI Setup Start Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–29  
Figure 2-14 GUI Setup Program Group Window- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–29  
Figure 2-15 GUI Setup Progress Indicator Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–30  
Figure 2-16 GUI Setup Start Window - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–30  
Figure 2-17 GUI Interface Screen if Connected Remotely - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–31  
Figure 2-18 GUI Interface Screen if Connected Directly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–32  
Figure 2-19 Detail Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–33  
Figure 2-20 Contact Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–33  
Figure 2-21 Operational Configuration Screen - Limits - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–34  
Figure 2-22 Operational Configuration Screen - PV- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–34  
Figure 2-23 Operational Configuration Screen - Power Tracker- - - - - - - - - - - - - - - - - - - - - - - - - 2–35  
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Figures  
Figure 2-24 Connection Configuration Screen - General - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–35  
Figure 2-25 Connection Configuration Screen - Telephone Fault Configuration - - - - - - - - - - - - - -2–36  
Figure 2-26 Connection Configuration Screen - General - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–36  
Figure 2-27 GUI Interface Screen if Connected Directly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2–37  
Figure 4-1 LCD showing Fault Code - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–3  
Figure 5-1 Inverter AC Terminal Locations in the Main Inverter Enclosure - - - - - - - - - - - - - - - - 5–4  
Figure 5-2 Utility AC Terminal Connections in the AC Interface Enclosure - - - - - - - - - - - - - - - - 5–4  
Figure 5-3 PV Terminal Locations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5–5  
Figure A-1 Electrical Diagram (sample)- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A–5  
Figure A-2 PV225S Schematic for Main Power Distribution (152812 A1) - - - - - - - - - - - - - - - - - A–6  
Figure A-3 PV225S Schematic for Control Power Distribution (152812 A2) - - - - - - - - - - - - - - - A–7  
Figure A-4 PV225S Schematic for Converter Control Unit (152812 A3)- - - - - - - - - - - - - - - - - - - A–8  
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Tables  
Table 2-1  
Table 2-2  
Table 2-3  
Table 2-4  
Table 2-5  
Table 4-1  
Scrolling through the Read Menu Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–9  
Read Menu Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–11  
Data Logging Menu- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–14  
Accumulated Values Menu- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–14  
Write Menu Parameters - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2–16  
Fault Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4–4  
Table A-1 Environmental Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–2  
Table A-2 Electrical Specifications- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A–3  
Table A-3 Over/Under Voltage and Over/Under Frequency Ranges- - - - - - - - - - - - - - - - - - - - - -A–3  
Table A-4 AC Terminal Wire Gauge, Bolt Size, and Torque Values - - - - - - - - - - - - - - - - - - - - -A–4  
Table A-5 DC Terminal Wire Gauge, Bolt Size, and Torque Values - - - - - - - - - - - - - - - - - - - - -A–4  
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Introduction  
1
Chapter 1, “Introduction” contains information about the features and  
functions of the PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
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Introduction  
Operation Features  
The PV225S 225 kW Grid-Tied Photovoltaic Inverter is a UL 1741 listed, utility  
interactive, three-phase power conversion system for grid-connected photovoltaic  
arrays with a power rating of 225 kW. Designed to be easy to install and operate,  
the PV225S automates start-up, shutdown, and fault detection scenarios. With  
user-definable power tracking that matches the inverter to the array and adjustable  
delay periods, users are able to customize startup and shutdown sequences.  
Multiple PV225S inverters are easily paralleled for larger power installations.  
The PV225S power conversion system consists of a pulse-width modulated  
(PWM) inverter, switch gear for isolation and protection of the connected AC and  
DC power sources, and a high efficiency custom Wye:Wye isolation transformer.  
Housed in a rugged NEMA-3R rated, powder-coated steel enclosure, the PV225S  
®
incorporates sophisticated Intellimod (IPM) Insulated Gate Bipolar Transistors  
(IGBT’s) as the main power switching devices. An advanced, field-proven,  
Maximum Peak Power Tracker (MPPT) integrated within the PV225S control  
firmware ensures the optimum power throughput for harvesting energy from the  
photovoltaic array.  
The advanced design of the PV225S includes an EMI output filter and the main  
AC contactor located electrically on the utility side of the isolation transformer.  
The location of the main AC contactor, and the ability to de-energize the isolation  
transformer during times of non-operation, greatly reduces the night-time tare  
losses consumed by an idle isolation transformer. An integrated soft-start circuit  
precludes nuisance utility-tie circuit breaker trips as the result of isolation  
transformer inrush current.  
Additionally, the PV225S integrated controller contains self-protection features  
including over and under voltage and frequency safeguards. An integral  
anti-island protection scheme prevents the inverter from feeding power to the grid  
in the event of a utility outage.  
The PV225S includes a local user interface comprised of an ON/OFF switch,  
keypad, and 4-line, 80 character LCD display. A user-friendly Graphic User  
Interface (GUI) provides a remote interface for operator interrogation of PV225S  
system status, control, metering/data logging and protective functions within the  
PV225S. The status, control, and logging features are also supported by the choice  
of three communication mediums, allowing the information to be accessed or  
commanded remotely.  
Fixed Unity Power Factor Operation  
The Xantrex PV Series of grid-tied inverters maintains unity power factor during  
operation. The control software constantly senses utility voltage, and constructs  
the output current waveform to match the utility voltage. The PV line of inverters  
is not capable of operation without the presence of normal utility voltage, nor is it  
capable of varying the output power factor off unity.  
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Operation Features  
Peak Power Tracking  
An advanced, field-proven, Maximum Peak Power Tracker (MPPT) algorithm  
integrated within the PV225S control software ensures the optimum power  
throughput for harvesting energy from the photovoltaic array. The peak power  
voltage point of a PV array can vary, primarily depending upon solar irradiance  
and surface temperature of the PV panels. This peak power voltage point is  
somewhat volatile, and can easily move along the I-V curve of the PV array every  
few seconds. The MPPT algorithm allows the PV225S to constantly seek the  
optimum voltage and current operating points of the PV array, and maintain the  
maximum peak PV output power.  
Accessible via the UFCU, there are five user settable parameters that control the  
behavior of the maximum peak power tracker within the PV225S. As show in  
Figure 1-1 on page 1–4, user settable parameters include:  
•
•
•
•
•
PPT V Ref (ID# 37),  
I PPT Max (ID#42),  
PPT Enable (ID# 44),  
PPT Rate (ID# 45), and  
PPT V Step (ID# 46).  
Upon entering the Power Tracking mode, it takes approximately 20 seconds for  
the PV225S to ramp the PV voltage to the “PPT V Ref” setpoint regardless of the  
actual PV voltage.  
With the “PPT Enable” set to “0” (power tracker disabled), the PV225S will  
regulate the DC Bus at the “PPT V Ref” setpoint. Regulating the DC bus means  
drawing more or less current out of the PV array to maintain this desired voltage.  
With the “PPT Enable” set to “1” (power tracker enabled), followed by the  
expiration of the “PPT Rate” (MPPT decision frequency), the MPPT will reduce  
the reference voltage by an amount equal to the “PPT V Step” value.  
At this point the MPPT will compare the amount of AC output power produced to  
the previous amount of AC power produced by the PV225S. If the output power  
has increased, the next change made (after “PPT Rate” has again expired) to the  
reference voltage, will be in the same direction.  
Conversely, if the power comparison proves undesirable, the power tracker will  
reverse the direction of the change to the “PPT_V Step”. The MPPT algorithm  
within the PV225S will then continue this ongoing process of “stepping and  
comparing” in order to seek the maximum power throughput from the PV array.  
The changes made by the MPPT to the reference voltage are restricted to 20% of  
“PPT V Ref” and by the maximum and minimum PV input voltage (600 and  
300 volts respectively). Also, the MPPT will not attempt to produce power greater  
than that allowed by the “I PPT Max” setpoint. If available PV power is above the  
maximum allowable power level of the PV225S, the MPPT will increase voltage  
as needed to maintain output power below rated maximum.  
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Introduction  
Optimization of the PV225S MPPT will result in an increase in energy production.  
The user is encouraged to study the PV array’s I-V curves and to adjust the MPPT  
user settable parameters accordingly.  
Figure 1-1 Maximum Peak Power Tracking  
Dynamic DC Minimum Operating Voltage  
The PV225S employs a unique approach to the minimum DC input voltage for  
operation. The CCU2 constantly monitors and calculates an average of the AC  
utility input voltage, thereby adjusting the required minimum DC input voltage  
threshold to optimize the sinusoidal AC output current waveform. Given a  
nominal input voltage of 208 Vac, the minimum DC input voltage threshold is  
300 Vdc. On a transient basis, the PV225S does have the ability to adjust the  
minimum DC input voltage threshold to less than 300 Vdc.  
Utility Voltage/Frequency Fault Automatic Reset  
In the event of a utility voltage or frequency excursion outside of preset limits, the  
PV225S will stop operation and display a fault at the operator interface. Once the  
utility voltage has stabilized within acceptable limits for a period of at least  
5 minutes, the PV225S will automatically clear the fault and resume normal  
operation. Voltage and frequency fault setpoints are detailed later in this section.  
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Safety Features  
Safety Features  
Anti-Island Protection  
A condition referred to as "Islanding" occurs when a distributed generation source  
(such as the PV225S Grid-tied Photovoltaic Inverter) continues to energize a  
portion of the utility grid after the utility experiences an interruption in service.  
This type of condition may compromise personnel safety, restoration of service,  
and equipment reliability.  
The PV225S employs a method for detecting the islanding condition using a  
Phase-Shift-Loop (PSL). This method is implemented in the CCU2 to prevent  
islanding of the PV225S. The CCU2 continuously makes minor adjustments to  
the power factor phase angle above and below unity. In the event of a utility  
interruption or outage, these adjustments destabilize the feedback between the  
inverter and the remaining load, resulting in an over/under frequency or voltage  
condition.  
Upon detection of such a condition, the PV225S then performs an immediate  
orderly shutdown and opens both the main AC and DC contactors. The fault  
condition will remain latched until the utility voltage and frequency have returned  
to normal for at least 5 minutes.  
This method has been extensively tested and proven to exceed the requirements of  
IEEE-929 (Recommended Practices for Utility Interface of Photovoltaic [PV]  
Systems) and UL-1741 (Static Inverters and Converters for use in Independent  
Power Systems).  
PV Ground Fault Detection  
The PV225S is equipped with a ground fault detection circuit by means of a  
Hall-effect current transducer (CT8). This circuit is active when the PV array is  
properly grounded. In the event of a ground fault exceeding 10 amps DC, the  
PV225S will execute an immediate orderly shutdown, open both the main AC and  
DC contactors, and report a ground fault on the LCD of the UFCU. The PV225S  
will remain faulted until the ground fault is remedied and the advisory is cleared at  
the operator interface.  
For additional information, see Chapter 4, “Troubleshooting”.  
DC Over-voltage Detection  
In the event of DC voltage greater than 600 Vdc, the PV225S will execute an  
orderly shutdown and will report a fault to the operator interface. If DC voltage  
remains greater than 600 Vdc, the PV225S may be irreparably damaged.  
See Chapter 4, “Troubleshooting” for further information on this fault condition.  
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Introduction  
Physical Characteristics  
The PV225S comes in two modules comprised of six enclosures to house the  
electronics described above. The first module includes the Main Inverter  
Enclosure, Inductor Enclosure, DC Interface Enclosure, and Communications  
Enclosure. The second module includes the Transformer Enclosure and AC  
Interface Enclosure.  
These components are identified in Figure 1-2.  
Power Electronics  
Communications  
Enclosure  
AC Interface  
Enclosure  
Main Inverter  
Enclosure  
DC Interface  
Enclosure  
Transformer  
Enclosure  
Inductor  
Enclosure  
Figure 1-2 PV225S Major Components  
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Physical Characteristics  
Main Inverter Enclosure  
The PV225S Main Inverter Enclosure is NEMA-3R rated and contains the power  
distribution panel, the converter control unit (CCU2), and the power electronics  
matrices. Also found within the Main Inverter Enclosure are some of the system  
protection devices (such as the sense and control power fuses).  
Power Distribution Panel  
This panel contains many of the Electromechanical, protective, and control power  
components necessary to support the operation of the PV225S.  
Converter Control Unit (CCU2)  
The CCU2 is a Digital Signal Processor (DSP) based control board that performs  
numerous control and diagnostic functions associated with PV225S operation. Its  
most significant tasks are control of PV225S electromechanical components and  
power electronics converters, signal conditioning for high voltage signal inputs  
and communication with the Universal Front Panel Control Unit, and system  
sensors. The CCU2 also contains the necessary DC power supplies to support its  
operation.  
Power Electronics Matrices  
The power electronics converters are located at the top of the PV225S main  
inverter enclosure. Both the left and right matrices are comprised of six switching  
transistors (IGBTs), transistor gate drive electronics, a laminated power bus, DC  
capacitor bank, and an aluminum extrusion heatsink with a cooling fan. The fans  
are located above each matrix heatsink.  
The PV array is tied logically to the matrices DC bus within the DC interface  
enclosure. The embedded CCU2 control unit manages the transfer of power  
between the DC bus and the utility grid by sending digitized gating signals to the  
IGBTs for producing a high-fidelity, sinusoidal output.  
Inductor Enclosure  
The Inductor Enclosure is NEMA-3R rated. It contains the necessary filter  
components to ensure the PV225S line current meets IEEE-519 (1992, Standard  
Practices and Requirements for Harmonic Control in Electrical Power Systems)  
and UL 1741 (2001, Static Inverters and Converters for use in Independent Power  
Systems) harmonic distortion requirements. Mounted on both the right and left  
side of the lower enclosure are inductor fans to allow cooling of the line filter  
components within. This enclosure also serves as the mounting base for the  
PV225S Main Enclosure.  
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Introduction  
DC Interface Enclosure  
The DC Interface Enclosure is NEMA-3R rated. The DC interface serves as the  
connection interface between the PV array and the PV225S. This enclosure is  
where the DC Disconnect Switch and DC contactor reside.  
CAUTION: Equipment Damage  
The fuses within the PV225S are intended for protecting the PV225S control circuitry  
only. They are not intended to provide protection for the PV array or external cabling.  
DC Disconnect Switch  
DC Interface Enclosure  
Figure 1-3 DC Interface Enclosure  
Transformer Enclosure  
The Transformer Enclosure is NEMA-3R rated. The main isolation transformer  
inside electrically isolates the PV225S from the utility power. Voltage-sensing  
circuit wiring and soft-start circuit pass through the Transformer Enclosure from  
the AC Interface Enclosure to the Main Inverter Enclosure.  
AC Interface Enclosure  
The AC Interface Enclosure is NEMA-3R rated. The AC interface serves as the  
connection between the utility and the isolation transformer. This enclosure is  
where the AC line fuses and AC Disconnect Switch reside. Also included in the  
AC Interface Enclosure are the main AC contactor and transformer soft-start  
circuit.  
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Physical Characteristics  
AC Interface Enclosure  
AC Disconnect  
Switch  
Transformer Enclosure  
Figure 1-4 AC Interface Enclosure and Transformer Enclosure  
Communications Enclosure  
The Communications Enclosure is NEMA-4 rated. It contains the hardware to  
enable a personal computer to connect to the unit, either directly or remotely.  
Hardware could include a POTS Connect Kit, a Wireless Connect Kit, or an  
Ethernet LAN kit, or a Direct Connect Kit.  
Communications Enclosure  
RS232/FO  
Converter  
MultiTech 56K  
Modem  
SA2 Surge  
Arrestor  
POTS connection hardware is shown  
in this photo.  
Figure 1-5 PC Connections in the Communications Enclosure  
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Introduction  
Operator Interface Controls  
Operator interface controls are located on the front door of the main inverter  
enclosure. These controls include an ON/OFF Switch, 4-line LCD display and  
keypad called the Universal Frontpanel Control Unit (UFCU). Additionally there  
is an AC and DC Disconnect on the AC Interface Enclosure and the DC Interface  
Enclosure Doors.  
Communication  
Enclosure  
DC  
Disconnect  
Switch  
LCD  
Display  
AC Disconnect  
Switch  
Universal  
Frontpanel  
Control  
(UFCP)  
DC Interface  
Enclosure  
ON/OFF  
Switch  
AC Interface Enclosure  
(AC Side View)  
Main Inverter Enclosure  
(Front View)  
Figure 1-6 PV225S Operator Interface Components  
Main Enclosure Door Interlock Switch  
The front door of the PV225S main enclosure is equipped with an interlock switch  
to preclude operation while the front door is open. Opening the door of the main  
inverter enclosure will initiate an immediate controlled shutdown of the PV225S  
and opens both the main AC and DC contactors. The main AC and DC contactors  
cannot be closed unless the door’s interlock is in the engaged position. The  
PV225S is prevented from being restarted until the door is again closed and the  
switch is in the engaged position.  
It is required that the PV225S main enclosure door must be locked during normal  
operation. The door interlock switch does NOT remove all hazardous voltages  
from inside the inverter. Before attempting to service the PV225S, follow the  
de-energize Lockout and Tag procedure on page 5–3.  
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Operator Interface Controls  
WARNING: Shock Hazard  
Disengaging the main enclosure door interlock switch does NOT remove all hazardous  
voltages from inside the inverter. Before attempting to service the PV225S, follow the  
de-energize Lockout and Tag procedure on page 5–3.  
On/Off Switch  
The PV225S incorporates a maintained position ON/OFF Switch (S3) located on  
the front door of the main enclosure. Under normal conditions, the ON/OFF switch  
is in the ON position. Turning the switch to the OFF position will initiate an  
immediate controlled shutdown of the PV225S and open both the main AC and  
DC contactors within the unit. The main AC and DC contactors cannot be closed  
unless the switch is in the ON position. The PV225S is prevented from being  
restarted until the ON/OFF switch is turned back to the ON position.  
WARNING: Shock Hazard  
Turning the ON/OFF switch to the OFF position does NOT remove all hazardous voltages  
from inside the inverter. Before attempting to service the PV225S, follow the de-energize  
Lockout and Tag procedure on page 5–3.  
Figure 1-7  
ON/OFF Switch (S3)  
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Introduction  
AC and DC Disconnect Switches  
Both AC and DC interface enclosures are equipped with lockout hasps for  
personnel safety. The enclosure doors should not be opened while the PV225S is  
operating.  
The switch handles and shafts provide a door interlock for both the AC and DC  
interface enclosures. The doors cannot be opened when the switch is in the ON  
position.  
The DC Disconnect Switch (S2) is equipped with an auxiliary contact block  
which enables the switch to be used as a load break DC disconnect. In the event  
the DC Disconnect Switch is opened while the PV225S is processing power from  
the PV array, the early-break contact block will signal the CCU2 (Converter  
Control Unit 2) to stop processing power prior to opening the DC Disconnect  
Switch.  
Additionally, opening the DC Disconnect Switch will cause the PV225S to  
execute an immediate orderly shutdown, open both the main AC and DC  
contactors, and report a PV disconnect fault on the LCD of the UFCU.  
DC Disconnect  
Switch (S2)  
AC Disconnect  
Switch (S1)  
DC Interface Enclosure  
AC Interface Enclosure  
Figure 1-8 AC and DC Disconnect Switches  
Communication Features  
The PV225S provides two types of information to the user:  
•
•
system status and/or fault information, and  
data logging information.  
System status and fault information can be accessed using the Universal Front  
Panel Control Unit (UFCU) or a personal computer (PC) using the Xantrex Solar  
Graphic User Interface (GUI) software. Data logging requires the use of a PC  
using the GUI software.  
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Communication Features  
System Status and Fault Reporting  
Basic system status and all fault conditions rising from within the PV225S are  
reported to the UFCU. The unit stores the time and details of all faults in  
non-volatile memory. The 4-line LCD will display a hexadecimal value and a  
brief text description of the fault.  
This information can also be accessed using a personal computer using the GUI  
software either directly or remotely.  
Types of status information include:  
•
•
•
•
•
•
•
•
•
•
•
Current Operating State or Goal State  
Fault Code (if applicable)  
Inverter State  
Line Voltage and Current  
Inverter Matrix Temperature  
Inverter Power  
PV State  
PV Voltage and Current  
PV Power  
Grid Frequency  
Peak Power Tracker Enabled  
Data Logging  
The inverter stores data values and software metrics for debugging. These values  
are stored within the CCU2 controller board in non-volatile memory. Data logging  
requires the use of a PC connection using the Xantrex Solar Graphic User  
Interface (GUI) software.  
The Data logging features include:  
•
•
•
•
•
•
•
Operational Values  
Internal Metrics  
Data Log Acquisition  
Graphic Data Analysis  
Fault Log Acquisition  
Accumulated Values  
Configurable Parameters  
For details on using this feature, consult the GUI Help program.  
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Introduction  
Communication Methods  
The PV225S communicates system status information to the user using the  
following methods.  
•
•
The Front Panel Control Unit (UFCU) Display  
PC Connection (Direct or Remote) - Xantrex Solar Graphic User Interface  
(GUI) Software required. Communication with a PC requires the selection of  
one of the following options.  
•
Remote Connection -- This method has three options available. One of  
these options will be field-installed prior to commissioning.  
•
•
•
POTS Connection  
Wireless Connection  
Ethernet LAN Connection  
•
Direct Connection -- This method is most commonly used by field  
technicians for commissioning and troubleshooting purposes.  
Important: The customer is responsible for providing the appropriate support service  
to support a PC connection. (i.e., making arrangements for an analog phone line, data line,  
wireless service or local area network.)  
Universal Front Panel Control Unit (UFCU)  
The UFCU keypad is located on the front of the Main Inverter Enclosure to  
manipulate and view system operation and status.  
The keypad is comprised of 20 touch-sensitive keys that provide a means to  
navigate through the menus and alter user-changeable settings.  
LCD Display  
Universal Front Panel  
Control Unit (UFCU)  
Figure 1-9 LCD Display and UFCU Location  
See “UFCU Keypad Operation and LCD Display” on page 2–6 for details.  
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Communication Methods  
PC Connection Methods  
Personal computers can be used to access the system status and programming  
features of the PV225S. A computer can be connected either directly or remotely.  
1. Remote Connect - uses one of the three kits below.  
•
POTS Kit - uses a MultiTech® 56K Modem, RS232/Fiber Optic  
Converter (configured for ethernet) and SA2 Surge Arrestor.  
•
•
Wireless Kit - uses a GSM Wireless Modem.  
Ethernet LAN Kit - uses a data communication device to enable the unit  
to connect to a local area network.  
2. Direct Connect - This method is used for troubleshooting. It uses a  
RS232/Fiber Optic Converter (configured for a PC), a DB25-to-DB25 gender  
changer, and a DB25-to-DB9 Serial Cable.  
Software is included to provide a graphic user interface that relates important  
system information. This software is called Xantrex Solar Graphic Interface  
(GUI). See “Minimum System Requirements” on page 2–26 for minimum system  
requirements.  
Communications  
Enclosure  
RS232/FO  
Converter  
®
MultiTech  
56K  
Modem  
POTS connection option shown.  
SA2 Surge  
Arrestor  
Figure 1-10 PC Connections in the Communications Enclosure  
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Introduction  
POTS Access  
Figure 1-11 illustrates the PV225S connected remotely to a personal computer.  
Figure 1-11 POTS Access  
Wireless Access  
Figure 1-12 illustrates the PV225S connected remotely to a personal computer  
using a wireless network.  
Figure 1-12 Wireless Access  
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Communication Methods  
Ethernet LAN Access  
The PV225S can be remotely accessed through a local area network.  
Figure 1-13 LAN Access  
Direct Access  
Figure 1-14 illustrates the PV225S connected directly to a personal computer.  
Figure 1-14 Direct Access  
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Introduction  
GUI Software Features  
Read-only Menu  
The GUI software provides access to the following “Read-only Menu”  
information. See Table 2-2, “Read Menu Descriptions” on page 2–11 for a  
specific list of available parameters.  
•
•
Operational Values  
Internal Metrics  
Write-Menu  
The GUI software provides control of the following system parameters. These  
parameters are in the Write Menu.  
•
User-Configurable Parameters. See Table 2-5, “Write Menu Parameters” on  
page 2–16 for a specific list of available parameters.  
Data Logging  
The GUI software provides the following data collection/reports (data logging).  
These features are not available through the Universal Front Panel Control Unit  
(UFCU).  
•
Operational Values - The present operational values (such as PV voltage and  
current, grid network voltage and frequency, or inverter current and power)  
can be read remotely.  
•
•
Internal Metrics - The inverter also maintains internal software metrics for  
remote review by Xantrex field service or engineering.  
Data Log Acquisition - The inverter maintains a data log in non-volatile  
memory for up to 30 days, after which the oldest data is overwritten. The GUI  
reads this data and updates a local file that can be imported to a spreadsheet.  
•
•
Graphic Data Analysis - Local data log files generated by the GUI can be  
imported to a spreadsheet application, thus giving the ability to create a  
graphical chart for display and analysis.  
Fault Log Acquisition - The inverter maintains a log of faults (description,  
time and date). This can be viewed remotely. The fault log is stored in the  
inverter’s non-volatile memory, and is also read by the GUI and stored at its  
computer in a text file.  
•
Accumulated Values - The inverter tracks power production statistics, such as  
total energy sold, operating hours, power production hours, peak power and  
energy, energy by month, and energy by the hour. Accumulated values are  
stored in the inverter’s non-volatile memory, and are also read by the GUI and  
stored at its computer in a text file.  
•
Configurable Parameters - The configuration parameters controlling the  
inverter’s operation can be viewed and changed from a remote GUI.  
See Table 2-3 on page 2–14 for a list of the Data Logging parameters available.  
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Operation  
2
Chapter 2, “Operation” contains information on the basic operation of  
the PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
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Operation  
Description of System Operation  
Overview  
The PV225S is a fully automated grid-interactive photovoltaic inverter. System  
startup, system shutdown, PV power tracking, and fault detection scenarios are all  
governed and monitored by the CCU2 controller within the PV225S. Manual  
interaction or control of the inverter is necessary only in the event of a system  
fault. Additionally, the following conditions govern operation of the PV225S.  
•
Stable utility AC voltage and frequency as specified in Table A-3 must be  
present for all states of operation.  
•
•
PV voltage as specified in Table A-3 must be present.  
With the exception of the Matrix Test state, the ON/OFF switch, located on the  
front door of the PV225S main inverter enclosure, must be switched to the ON  
position for all operating states.  
•
•
•
The door of the main inverter enclosure must be closed with the door  
interlock switch in the engaged position.  
Both the AC and DC Disconnect switches must be in the ON or closed  
position.  
Fault conditions must not be present.  
Faults  
Fault states are automatic from any state of operation. In the event of a fault  
condition, the PV225S will immediately stop processing power and execute an  
immediate orderly shutdown, open both the main AC and DC contactors, and  
remain in a faulted state until the fault is remedied and cleared (manually or  
automatically).  
Most faults are latching, and only those faults associated with grid disturbances  
are auto-clearing and thus enable the PV225S to restart after a 5 minute delay  
period. All fault conditions arising from within the PV225S are reported to the  
UFCU (Universal Frontpanel Control Unit). The 4-line LCD on the UFCU will  
display a hexadecimal value (fault code) and a brief text description of the fault.  
Once the cause of the fault has been identified and corrected, and it is determined  
to be safe to proceed, PV225S faults may be cleared from the UFCU keypad or  
via the remote GUI.  
See “Clearing Faults Manually” on page 4–3 for instructions on this procedure.  
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Description of System Operation  
POWER UP  
INITIALIZING  
PV contactor opened.  
Inverter matrix off.  
Grid contactor open.  
Green LED on. Red off.  
KEY  
DISABLE  
System State: Key Disable  
Inverter State: Standby  
PV State: Sleep  
PV contactor open.  
Inverter matrix off.  
Grid contactor open.  
Enable Key  
Inverter matrix off. Line contactor open  
PV Contactor Closed  
SLEEP  
for at least 10  
seconds  
PV Voltage > 300V Close K2  
System State: Shutdown  
Inverter State: Standby  
PV State: Sleep  
PV Voltage < 50V  
(300V  
-
250V margin)  
PV Contactor Open  
PV Voltage > 440V  
(PV V START)  
WAKE UP  
for 5.0 min.  
(PV T START)  
System State: Shutdown  
Inverter State: Standby  
PV State: Wake Up  
PV Voltage < 440V (PV V Start)  
Grid Contactor K1 Close  
System State: Shutdown  
Inverter State: Main Settling  
PV State: Wake Up  
K1 Settle  
for .5 seconds  
Inverter Matrix On  
PV Voltage < 300V (Min. Oper.)  
PV Voltage < 300V (Min. Oper.)  
TEST  
for 5.0 min.  
(PV T STOP)  
System State: Power Tracking  
Inverter State: On Line  
PV State: On Line  
PV Power < 1.0kW (PV P STOP)  
PV Power > 1.0kW (PV P STOP)  
ON LINE  
5 minutes elapsed  
System State: Power Tracking  
Inverter State: On Line  
PV State: Sleep Test  
FAULT  
PV contactor opened.  
Inverter matrix off.  
Fault from any State  
Fault Cleared  
Grid contactor open.  
Red LED on. Green off.  
Bold - constant value  
Italic - User settable.  
Underline - Default value.  
Figure 2-1 Operating States Flow Chart  
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Operation  
Operating States  
A state machine implemented within the CCU2 control software governs the  
operation of the PV225S with clearly defined transitions between its operating  
states. There are five steady-state operating states and numerous intermediate  
transition states.  
•
•
•
•
•
•
•
Power Tracking  
Transition  
Shutdown  
Fault  
Manual Current  
Matrix Test  
Automatic Sleep Test  
Power Tracking  
This is the standard operating state of the PV225S. The PV225S maximum power  
tracker will demand maximum power from the PV array, given sufficient PV  
irradiance.  
The user should be aware of the following conditions governing PV225S state  
transitions:  
•
•
Qualified utility voltage must be present for all states of operation.  
Fault states are automatic from any state of operation. A fault will cause the  
PV225S to immediately stop processing all power. The fault condition will be  
reported to the operator interface LCD.  
•
•
Most PV225S faults are latching and must be cleared at the operator interface  
keypad before transitioning to another operating state.  
The ON/OFF switch, located on the front door of the PV225S, must be in the  
ON position for all operating states except Matrix Test, in which case it must  
be in the OFF position.  
Transition  
The intermediate transition states provide an orderly progression from one  
operating state to the next. The user has the ability to manually transition the  
PV225S between operating states via the operator interface keypad or remotely  
using the GUI software. Manual transitions are initiated by entering a “Goal  
State”, where the goal state is the desired operating state. Given all applicable  
system parameters are within acceptable limits, and the request is valid within the  
state machine, the PV225S will initiate the proper sequence of operations  
necessary to progress to the requested goal state. Refer to Figure 2-1 on page 2–3  
for an illustration of valid state transitions.  
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Operating States  
Shutdown  
Fault  
The line interface controller is idle. The CCU2 monitors the status of the PV array  
and utility grid, waiting in standby until the PV array is available to produce  
power to the grid.  
The PV225S has encountered a fault condition. When this happens, regardless of  
the PV225S state of operation, the PV225S will stop processing all power and  
execute an orderly system shutdown. A description of the fault and fault code will  
appear on the operator interface LCD. The Fault state may be cleared from the  
keypad once the cause of the fault has been corrected. See Chapter 4,  
“Troubleshooting” for a complete description of all fault codes.  
Manual Current  
Matrix Test  
This operating state is provided to evaluate the existing PV array V-I  
characteristics. The PV controller regulates a constant amount of PV current as  
commanded by the user from the operator interface keypad, up to the PV current  
limit of the PV225S. If the user commands more PV current than is available, the  
DC bus voltage will drop below the minimum bus voltage level and the PV225S  
will enter Shutdown mode.  
This operating state is provided to verify proper operation of the matrices and  
their associated control electronics. There is no power transfer between the PV  
and utility in this mode. The ON/OFF switch must be in the OFF position for the  
PV225S to enter this state.  
Automatic Sleep Test  
Toward the end of every solar day, the PV225S automatically determines when to  
stop producing power dependent upon the output power of the inverter. As the net  
output power of the PV225S nears zero, a timer is started to allow the inverter to  
ride through any brief irradiance reductions.  
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Operation  
Operator Interface  
The purpose of the operator interface is to provide a means of communicating  
critical operational information to and from the unit. This communication occurs  
between the operator and the UFCU Keypad and LCD display or between the  
operator and a personal computer running the Xantrex Solar GUI software.  
UFCU Keypad Operation and LCD Display  
The UFCU keypad is located on the front of the Main Inverter Enclosure to  
manipulate and view system operation and status.  
The keypad is comprised of 20 touch-sensitive, peizio electric keys that provide a  
means to navigate through the menus and alter user-changeable settings.  
•
Four function keys are available.  
•
•
•
•
F1 - While in the READ Menu, this key is used to clear faults.  
In the WRITE Menu, it jumps to set “Goal:”.  
F2 - While in the READ Menu, this key jumps to display “INV A Volts”.  
While in the WRITE Menu, this key jumps to display “Max AC Volts %”.  
F3 - While in the READ Menu, this key jumps to display “PV Volts:”.  
While in the WRITE Menu, this key jumps to display “Input #0:”.  
F4 - While in the WRITE Menu, when commanding a goal state, this  
function key confirms the change in goal state.  
•
Two Navigation keys are available.  
•
\/ or /\ moves forward or backward within the menu structure. Upon  
reaching the end of the menu, it will roll-over to the beginning of the  
same menu.  
•
•
Ten numeric keys (0 through 9), two symbol keys (“.” and “-”), and an  
“ENTER” key are available for entering user-settable parameters.  
The “MENU” key allows you to enter the password-protected Write  
parameters.  
System: PWR Tracking  
Inv: Online  
Pv: Online  
LCD Display  
Goal : PWR Tracking  
UFCU Keypad  
Standard Display  
Figure 2-2 The Universal Front Panel Control Unit (UFCU) and LCD  
2–6  
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Operator Interface  
LCD Display - Initialization Screen  
Any time AC power is applied to the unit, the LCD display will cycle through the  
following displays while the system initializes. Once it’s done with this process,  
the standard display will appear.  
Front Panel Initialization - Screen 1  
Front Panel Initialization - Screen 2  
Initialising...  
Model: PV225S  
XANTREX TECHNOLOGY  
www.xantrex.com  
(800) 670-0707  
Front Panel v5.0  
SW Build: 012805  
System Initialization - Screen 3  
Standard Display  
System: Initializing  
Inv: Shutdown  
System: PWR Tracking  
Inv: Online  
Pv: Shutdown  
Pv: Online  
Goal : Shutdown  
Goal : PWR Tracking  
Figure 2-3 Initialization Screens  
Standard Display  
The Standard Display provides the following information:  
•
•
•
•
First Line - System Status (ID 1)  
Second Line - Inverter Status (ID 4)  
Third Line - PV Status (ID 13)  
Fourth Line - Goal State (ID 2)  
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Operation  
Menu Structure  
The operator interface consists of three levels:  
•
READ Menu - operation information provided to the user from the PV225S.  
The READ Menu consists of all operational values, the date and time. These  
can be viewed any time the PV225S has control power.  
•
WRITE Menu - operational parameters provided to the PV225S from the user.  
The WRITE Menu consists of a goal state sub-menu, and all system  
configurable parameters. The WRITE Menu is password protected and may  
only be changed by trained service technicians. In particular are parameters  
relating to utility protection setpoints.  
•
Data Logging - the collection of specific parameters values over a period of  
time. The data logging feature is only available if using the GUI. However,  
the user does have the ability to view a snapshot of specific data using the  
“Read by ID” feature. See Table 2-3 on page 2–14 and Table 2-4 on  
page 2–14.  
Information reported back to the user (READ Menu) occurs at the LCD above the  
Universal Front Panel Control Unit (UFCU) and (if used) at the computer running  
the GUI monitoring program. Making changes to the parameters within the WRITE  
Menu is done with the UFCU keypad or the GUI software program and requires a  
password.  
Important: Specific grid-interface parameters within the WRITE Menu have been set in  
the factory to the limits mandated by UL 1741. Any changes to these setpoints should be  
agreed upon by the local utility and the equipment owner.  
Upon system power-up, the operator interface LCD will display the system  
operating state on the first line. The inverter’s state of operation will be reported  
on the second line. The PV Array’s state of operation will be reported on the third  
line. The Goal target will be reported on the fourth line.  
Important: While in the WRITE Menu, the operator interface display will reset itself to  
the standard display if there is no input for more than 2 minutes.  
Standard Display  
READ Menu  
System: PWR Tracking  
Inverter: Online  
PV: Online  
Goal: PWR Tracking  
Password  
Enter Goal State  
WRITE Menu  
Set Date/Time  
Change  
Parameters  
Figure 2-4 Operator Interface Menu Diagram  
2–8  
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Operator Interface  
READ Menu  
The READ Menu includes the following information:  
•
•
•
•
•
•
•
•
•
•
•
Current Operating State or Goal State  
Fault Code (if applicable)  
Inverter State  
Line Voltage and Current  
Inverter Matrix Temperature  
Inverter Power  
PV State  
PV Voltage and Current  
PV Power  
Grid Frequency  
Peak Power Tracker Enabled  
Table 2-1 shows how the third and fourth line of the LCD will change as the  
operator continues scrolling through the Menu. Table 2-2 on page 2–11 provides  
a detailed description of READ Menu operational values that are displayed on the  
LCD.  
To Display Any Operational Value in the READ Menu  
From the Standard Display, use the /\ or \/ keys on the operator interface keypad  
to scroll through the READ Menu. The fourth line of the display will change to  
display the appropriate information. See Table 2-1.  
•
•
The \/ key will scroll downward through the menu.  
The /\ key will scroll upward through the menu.  
Table 2-1 Scrolling through the Read Menu Parameters  
Read Menu Value  
Fourth Line of the LCD  
Software Version (not shown)  
Date/Time (not shown)  
Read by ID#  
CCU Vx.xx FP V.x.x  
Feb-14-2005 10:01:55  
Value by ID#  
INV A Volts:  
INV B Volts:  
INV C Volts:  
INV A Amps:  
INV B Amps:  
INV C Amps:  
PV Volts:  
Inverter A-B Volt  
Inverter B-C Volt  
Inverter C-A Volt  
Inverter A Current  
Inverter B Current  
Inverter C Current  
PV Voltage  
PV Current  
PV Amps:  
PV Power  
PV kW:  
Grid Frequency  
PV PPT Enable  
Grid Freq:  
PV PPT:  
Ground Current  
Accumulated Power  
Ground I:  
KWH:  
Upon reaching the end of the menu, it will go back to the beginning of the menu.  
2–9  
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Operation  
Standard Display  
From the Standard Display:  
System: PWR Tracking  
Inv: Online  
System: PWR Tracking  
Inv: Online  
1. Press the \/ button once.  
Pv: Online  
CCU Vx.xx FP Vx.x  
Pv: Online  
Goal : PWR Tracking  
2. Fourth line displays  
CCU version and Front  
Panel version software.  
System: PWR Tracking  
Inv: Online  
Hit ENTER or "." "-"  
Value by ID#  
3. Press the \/ button again.  
System: PWR Tracking  
Inv: Online  
Pv: Online  
4. Text on Fourth line displays  
the Date and Time.  
Feb-14-2005 10:01:55  
5. Press the \/ again.  
6. Third and Fourth line  
displays the “Read by ID”  
feature.  
7. Either enter a Read  
parameter ID number to  
jump to the specified  
parameter or press the \/  
again continue scrolling  
through the Read Menu.  
The fourth line will continue  
to change as described in  
Table 2-1.  
System: PWR Tracking  
Inv: Online  
Hit ENTER or "." "-"  
Value by ID#  
System: PWR Tracking  
Inv: Online  
PV: Online  
INV A Volts: 480  
Figure 2-5 Scrolling through the READ Menu  
2–10  
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Operator Interface  
Table 2-2 READ Menu Descriptions  
Operational Parameter  
Description  
ID Units  
Current Operating State  
Current system states include the following.  
1
N/A  
Displays as: System: *  
Initializing (0)  
Key-disabled (1)  
Shutdown (2)  
where * can be any one of the states  
listed in the description for this  
parameter.  
Starting (3)  
PWR Tracking (4)  
Manual Current (5)  
Matrix Test (6)  
Faulted (7)  
System Goal State  
Goal States include the following.  
2
N/A  
Displays as: Goal: *  
Shut Down (0)  
PWR Tracking (1)  
Manual Current (2)  
Matrix Test (3)  
where * can be any one of the states  
listed in the description for this  
parameter.  
Fault code  
See “Fault Code Descriptions” on page 4–4 for a detailed  
list of Fault Codes.  
3
4
N/A  
N/A  
Inverter State  
Inverter States includes the following.  
Displays as: INV: *  
Shut Down (0)  
Stand-by (1)  
Starting (2)  
Main-Setting (3)  
On-Line (4)  
where * can be any one of the states  
listed in the description for this  
parameter.  
Line A–B voltage  
Line to line voltage  
Line to line voltage  
Line to line voltage  
Phase A current  
5
6
7
8
9
Vrms  
Vrms  
Vrms  
Arms  
Arms  
Displays as: INV A volts: xxx  
Line B–C voltage  
Displays as: INV B volts: xxx  
Line C–A voltage  
Displays as: INV C volts: xxx  
Phase A current  
Displays as: INV A amps: xxx  
Phase B current  
Phase B current  
Displays as: INV B amps: xxx  
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Operation  
Table 2-2 READ Menu Descriptions  
Operational Parameter  
Description  
ID Units  
Phase C current  
Phase C current  
10 Arms  
Displays as: INV C amps: xxx  
Inverter Real Power  
Inverter Real Power  
11 kW  
12 °C  
Displays as: INV KW:  
Inverter Matrix Temperature  
Temperature of the Inverter IGBT matrix heatsink  
Displays as: INV Temp:  
PV State  
PV States include the following.  
13 N/A  
Displays as: PV: *  
Shut Down (0)  
Sleep (1)  
where * can be any one of the states  
listed in the description for this  
parameter.  
Wakeup (2)  
On-line (3)  
Sleep-test (4)  
PV Voltage  
PV Voltage  
PV Current  
PV Power  
14 Vdc  
15 Adc  
16 kW  
17 Hz  
Displays as: PV Volt: xxx  
PV Current  
Displays as: PV amps: xxx  
PV Power  
Displays as: PV kW: xxx  
Grid Frequency  
Grid Frequency  
Displays as: Grid Freq:  
Peak Power Tracker Enable  
Indication as to whether the PPT is enabled or disabled.  
18 N/A  
Off (0)  
On (1)  
Displays as: PV PPT: *  
where * can be any one of the states  
listed in the description for this  
parameter.  
Ground Current  
Ground Current  
19 N/A  
20 N/A  
Displays as: Ground I:  
kW Accumulated  
kW Accumulated  
Displays as: kWH:  
2–12  
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Operator Interface  
READ-by-ID  
The Read-by-ID feature supports the ability of the user to view any Read or Write  
parameter available within the menu structure. It also provides a means to view  
data logging and accumulated values information. See Table 2-2 for a list of the  
Read Menu parameters. See Table 2-3 for a list of data logging menu parameters.  
See Table 2-4 for a list of accumulated values parameters.  
To use the Read-by-ID Feature:  
1. From the Standard Display, press the \/ key three times to scroll downward  
through the menu to the Read-by-ID Menu item. Stop when the 3rd and 4th  
line of the display change as shown in Figure 2-6.  
2. Press <ENTER> to enter the Read-by-ID feature.  
3. Use the keypad to enter the ID number of the Data Log Configuration or  
Accumulated Value ID number and press <ENTER>. See Table 2-2 for a list of  
READ Menu items and their ID numbers.  
a) Press the “.” button to move upward in the Menu structure.  
b) Press the “-” to move backward in the menu structure. These keys only  
function in the Read-by-ID feature.  
System: Shutdown  
Inv: Standby  
Hit ENTER or "." "-"  
Value by ID#  
Press <ENTER> when this  
screen appears to access the  
Read-by-ID feature.  
System: Shutdown  
Inv: Standby  
Hit ENTER or "." "-"  
Read ID# xxx: xxx  
Use the keypad to enter the desired  
ID number and press <ENTER>.  
The display will change as shown and will  
show the requested value.  
where:  
xxx = any Menu ID  
xxx = operational value of Menu ID  
Use the “.” and “-” buttons to scroll backward  
and forward within the Read-by-ID menu.  
Figure 2-6 Read-by-ID Feature  
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Operation  
Table 2-3 provides a list of the Data Logging Menu parameters.  
Table 2-3 Data Logging Menu  
ID#  
Usage  
300  
Data Log Daily Rate in Minutes  
ID# of 1st parameter to be logged  
ID# of 2nd parameter to be logged  
ID# of 3rd parameter to be logged  
ID#s of the 4th through the 90th parameter to be logged.  
Not available  
301  
302  
303  
304 through 390  
391  
392  
393  
394  
395  
396  
397  
398  
299  
Data Log Nightly Rate in Minutes  
First Daytime Hour  
First Night-time Hour  
Size of Data Log in Words  
Words per record  
Count of parameters per record  
Offset from Data Log or next log record  
Address of the Data Log  
Table 2-4 provides a list of the Accumulated Values Menu parameters.  
Table 2-4 Accumulated Values Menu  
ID#  
Usage  
600  
Accumulated Operating Hours on actual day  
Accumulated Operating Hours in actual week  
Accumulated Operating Hours in actual month  
Accumulated Operating Hours in actual year  
Accumulated Operating Hours since Commissioning  
Accumulated Sell Mode Hours on Actual Day  
Accumulated Sell Mode Hours in actual week  
Accumulated Sell Mode Hours in actual month  
Accumulated Sell Mode Hours in actual year  
Accumulated Sell Mode Hours since Commissioning  
Not available  
601  
602  
603  
604  
605  
606  
607  
608  
609  
610-619  
620  
Accumulated Power Sold Hours on actual day  
Accumulated Power Sold Hours in actual week  
Accumulated Power Sold Hours in actual month  
Accumulated Power Sold Hours in actual year  
Accumulated Power Sold Hours since Commissioning  
Accumulated Power Sold Hours since last reset  
Not available  
621  
622  
623  
624  
625  
626-629  
630  
Peak Power monitored today  
2–14  
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Operator Interface  
Table 2-4 Accumulated Values Menu  
ID#  
Usage  
631  
Peak Power monitored this week  
Peak Power monitored this month  
Peak Power monitored this year  
Peak Power monitored since Commissioning  
Not available  
632  
633  
634  
635-639  
640  
Peak Power Sold for a day  
Peak Power Sold for a week  
Peak Power Sold for a month  
Peak Power Sold for a year  
641  
642  
643  
WRITE Menu  
Important: Specific grid-interface parameters within the WRITE Menu have been set in  
the factory to the limits mandated by UL 1741. Any changes to these setpoints should be  
agreed upon by the local utility and the equipment owner.  
The WRITE Menu includes the following parameters:  
•
•
•
•
•
•
•
•
•
Ground Current Max  
PPT Voltage Reference  
PV Voltage Start  
PV Time (Start and Stop)  
PV Power Stop  
PPT Current Max %  
Manual Current %  
PPT Enable  
PPT Update Rate and Voltage Step  
Important: Write parameters require a password to access and should only be changed  
by authorized personnel.  
Table 2-5 provides a detailed description of WRITE parameters that are displayed  
on the LCD.  
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Operation  
Changing and Displaying WRITE Menu Parameter Values  
Follow the procedure below to change WRITE Menu parameters.  
To change WRITE Menu parameters:  
1. From the standard display or anywhere in the READ Menu, you may access  
the WRITE menu parameters by pressing the <MENU> key. This will ask for a  
password.  
2. Enter the password <5><9><4> and press the <ENTER> button.  
a) If the wrong password is entered, the display will again prompt the user  
for the password.  
b) If a mistake is made while keying in the password, the /\ or \/ keys may be  
used as a backspace key.  
3. Once within the Write Menu, the first item is the “Set Goal State”. Use the /\  
or \/ key on the operator interface keypad to scroll through the WRITE Menu  
parameters.  
a) To change the displayed parameter, press the <ENTER> button.  
b) Enter the desired value and press <ENTER>. If the value entered is outside  
the acceptable range for the parameter, the original value will remain.  
c) To leave the WRITE Menu and return to the READ Menu, press the  
<MENU> button once and the standard display will reappear on the LCD.  
Table 2-5 Write Menu Parameters  
Default Maximum Minimum  
Value  
Parameter  
Description  
ID Units  
Value  
Value  
Set Goal State  
Commands a Goal State.  
Displays as:  
Hit ENTER to set  
Goal:  
Set Date  
The date is entered  
month-day-year (mmddyy):  
April 28, 2005 is entered 042805  
Displays as:  
042805  
.
Set Time:  
The time is entered in military  
hours-minutes-seconds  
(i.e., 24-hour clock): 4:30 pm is  
Displays as: 163000  
entered 163000  
.
Maximum Grid  
Voltage  
This parameter sets the trigger  
32 Percentage 110  
110  
105  
point value for “AC voltage High”  
(0013) fault. If the grid voltage is  
over this parameter’s value, the  
of  
Nominal  
voltage  
Displays as:  
Max AC Volts %: fault is triggered. The upper limit  
of this parameter is restricted by  
UL requirements.  
2–16  
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Operator Interface  
Table 2-5 Write Menu Parameters  
Default Maximum Minimum  
Value  
Parameter  
Description  
ID Units  
Value  
Value  
Minimum Grid  
Voltage  
This parameter sets the trigger  
point value for “AC voltage low”  
(0012) fault. If the grid voltage is  
below this parameter’s value, the  
fault is triggered. The lower limit  
of this parameter is restricted by  
UL requirements.  
33 Percentage 88  
95  
88  
of  
Nominal  
voltage  
Displays as:  
Min AC Volts%:  
Maximum Grid  
Frequency  
This parameter sets the trigger  
point value for “AC frequency  
high” (0011) fault. If the grid  
frequency is over this parameter’s  
value, the fault is triggered. The  
upper limit of this parameter is  
restricted by UL requirements.  
34 Hertz  
60.5  
60.5  
59.5  
59.5  
60.5  
Displays as:  
Max AC Freq:  
Minimum Grid  
Frequency  
This parameter sets the trigger  
point value for “AC frequency  
low” (0010) fault. If the grid  
frequency is below this  
parameter’s value, the fault is  
triggered. The lower limit of this  
parameter is restricted by UL  
requirements.  
35 Hertz  
59.5  
Displays as:  
Min AC Freq:  
Maximum Ground  
Fault Current  
This parameter sets the trigger  
point value for “Ground Over  
Current” (0033) fault. Once the  
current through the ground cable  
is greater than the value of this  
parameter, the fault is triggered.  
36 Amps  
10  
20  
1
Displays as:  
Max Gnd Flt I  
Peak Power Tracker This is the initial PV voltage the  
37 Volts  
400  
600  
300  
Reference Voltage  
inverter is going to try to keep as it  
goes into on line mode. If the  
Displays as:  
PPT V Ref:  
power tracker is off, the inverter  
will draw current from the PV  
array to maintain this reference  
voltage. If the power tracker is on,  
this is the reference voltage from  
which the inverter start exploring  
voltages that produce more power.  
PV Wakeup Voltage  
This is the trigger point that  
transitions the inverter from PV  
Sleep state to PV Wake Up state.  
When the PV voltage reaches the  
value of this parameter the  
inverter transitions into PV Wake  
Up mode.  
38 Volts  
440  
600  
300  
Displays as:  
PV V Start:  
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Operation  
Table 2-5 Write Menu Parameters  
Default Maximum Minimum  
Value  
Parameter  
Description  
ID Units  
Value  
Value  
Time Delay for PV  
Wake up  
Time delay to transition from PV 39 Seconds  
wake up state to PV On-line state.  
Once the inverter is in PV Wake  
Up mode, it waits for the amount  
of time determine by this  
300  
1200  
0
Displays as:  
PV T Start:  
parameter before transitioning into  
PV on-line mode. During this time  
the inverter checks that the PV  
voltage is no less than the PV  
wake voltage, otherwise it goes  
into PV Sleep mode.  
Time delay for PV  
Sleep Test  
This is the amount of time the  
inverter will be in Sleep Test mode  
if the output power continues to be  
below “PV P Stop”. The inverter  
will exit Sleep Test mode towards  
on-line mode if the power is over  
“PV P Stop” or towards Shutdown  
mode if the “PV T Stop” timer  
expires.  
40 Seconds  
300  
1200  
0
Displays as:  
PV T Stop:  
PV Output Power to This is the output power trigger  
41 KW  
1
10.0  
110  
0.1  
Enter Sleep Test  
Mode  
point for the inverter to transition  
into sleep test mode. When the  
output power is below the value of  
this parameter the inverter enters  
sleep test mode.  
Displays as:  
PV P Stop:  
Power Tracker  
Maximum Output  
Power  
This parameter sets the percentage 42 Percentage 100  
0
of maximum rated power the  
inverter will produce when in  
power tracker mode. For example,  
a 100 Kw system with this  
parameter set to 50 will not  
attempt to produce more than 50  
Kw.  
of  
maximum  
output  
power.  
Displays as:  
I PPT Max:  
Manual Current  
Output  
This parameter sets the percentage 43 Percentage 25  
110  
0
of maximum out current the  
inverter will attempt to produce  
while in manual current mode.  
of  
maximum  
output  
current.  
Displays as:  
I Manual:  
2–18  
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Operator Interface  
Table 2-5 Write Menu Parameters  
Default Maximum Minimum  
Value  
Parameter  
Description  
ID Units  
Value  
Value  
Enable Peak Power  
Tracker  
This parameter switches on and  
off the Power Tracker function.  
When the Power Tracker is on, the  
inverter will regulate the bus  
voltage to optimize output power.  
When the Power Tracker is off, the  
inverter will regulate the bus  
voltage to maintain it at “PPT V  
Ref” volts.  
44 0 = Off  
1 = On  
1
1
0
Displays as:  
PPT Enable:  
Power Tracker Rate  
This parameter sets the rate at  
which the Power Tracker function  
makes changes to the voltage  
reference point as it tries to find  
the optimal position. For example,  
if the value of this parameter is  
0.5, then every half a second the  
power tracker will increase or  
decrease the voltage reference  
point to check if more power can  
be produced at the new level.  
45 Seconds  
0.5  
10.0  
0.1  
Displays as:  
PPT Rate:  
Power Tracker Step  
This parameter sets the size of the 46 Volts  
change the Power Tracker will  
make to the voltage reference  
point as it tries to find the optimal  
position. For example, if the value  
of this parameter is set to 1, the  
Power Tracker will increase or  
decrease the voltage reference  
point by one volt at a speed of  
“PPT Rate” to check if more  
power can be produced at the new  
level.  
1
10.0  
0.1  
Displays as:  
PPT V Step:  
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Operation  
Commanding Goal State Changes  
To change the Goal State:  
1. From the standard display press the <MENU> key. This will prompt the user for  
a password. The LCD will change the third line of the display to “Type and  
Hit ENTER” and fourth line of the display to “Password:”.  
2. Enter the password <5><9><4> and press the <ENTER> button.  
The LCD will change the third line of the display to “Hit ENTER to set  
”
and fourth lines of the display to “Goal:”.  
3. Press <ENTER> again. The Goal State menu will show on the LCD display.  
4. Scroll through the goal state menu with the /\ or \/ keys until the desired goal  
state is displayed on the fourth line of the display.  
5. Press <ENTER>. The LCD will then prompt the user by displaying the  
following text on the third line: “Press F4 to Confirm”.  
6. Press <F4> and the PV225S will transition to this goal state. If the goal state  
requested violates the conditions of the state machine, the PV225S will  
remain in the previous state of operation.  
MATRIX  
TEST  
SHUTDOWN  
Manual  
Inverter =  
Idle  
Inverter =  
Disabled  
FAULT  
Automatic  
POWER  
TRACKING  
MANUAL  
CURRENT  
Manual  
Inverter =  
PV Power  
Inverter =  
PV Current  
Figure 2-7 State Transition Diagram  
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Operator Interface  
Setting the Date and Time  
Follow the procedure below to change the date and time.  
To change the Date and Time:  
1. From the standard display, press the <MENU> key. This will prompt the user  
for the password. The LCD will change the third and fourth lines of the LCD  
display as follows:  
“Type andHit ENTER”  
“Password:”.  
2. Enter the password <5><9><4> and press the <ENTER> button.  
3. Scroll down with the \/ key until date or time parameters are reached.  
a) If you’re changing the date, the third and fourth lines of the LCD will  
display as follows:  
“
Type and hit ENTER  
”
“
Set Date: MMDDYY  
”
b) If you’re changing the time, the third and fourth lines of the LCD will  
display as follows:  
“
Type and hit ENTER  
”
“
Set Time: HHMMSS  
”
4. Press <ENTER>. Enter the proper date or time in a six digit format. For  
example:  
a) The date is entered month-day-year (mmddyy):  
April 28, 2005 is entered 042805<ENTER>.  
b) The time is entered in military hours-minutes-seconds  
(i.e., 24-hour clock): 4:30 pm is entered 163000<ENTER>.  
If a mistake is made while entering the date or time, the /\ and \/ keys may be  
used as a backspace key. Any two-digit year “YY” may be entered for the  
date, but regardless of the keyed entry, the maximum Month/Day “MMDD”  
that the UFCU will accept is a “1231” or Dec. 31st. The maximum allowable  
time entry the UFCU will accept is “235959”.  
5. Once the entry is accepted, the third and fourth lines of the LCD display will  
revert back to the following:  
a) If you’re changing the date, the third and fourth lines of the LCD will  
display as follows:  
“
Hit ENTER to set  
”
“
Set Date:  
”
b) If you’re changing the time, the third and fourth lines of the LCD will  
display as follows:  
“
Hit ENTER to set  
”
“
Set Time:  
”
6. Pressing the <MENU> key will return the user to the standard display.  
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Operation  
Manual State Transitions  
State conditions can also be transitioned manually. Refer to “Commanding Goal  
State Changes” on page 2–20 for instructions on commanding PV225S goal states  
for manual transitions.  
Shutdown → Matrix Test → Shutdown  
1. Turn the ON/OFF switch to the OFF position.  
2. Command the PV225S to the Matrix Test.  
3. After completing the Matrix Test, command the PV225S to Shutdown.  
If the ON/OFF switch is turned to ON while the PV225S is in the Matrix Test state,  
the PV225S will transition to Shutdown.  
Power Tracking→ Manual Current→ Power Tracking or Shutdown  
1. Verify the PV manual current parameter (I Manual %) is set to the desired  
percent of rated.  
2. Command the PV225S to Manual Current mode from the operator interface  
keypad. While in the manual current mode, the user may change the PV  
manual current parameter. However, the user may demand greater current  
than the capacity of the PV array. If this causes the PV voltage to drop below  
the minimum operating voltage (300 Vdc), the PV225S will transition to  
Shutdown.  
3. To exit the Manual Current mode, the user must manually command the  
PV225S to Power Tracking.  
Automatic State Transitions  
State conditions can also be transitioned automatically. Refer to “Commanding  
Goal State Changes” on page 2–20 for instructions on commanding PV225S goal  
states.  
Shutdown → Power Tracking → Shutdown  
1. The ON/OFF switch must be turned to the ON position.  
2. Once the PV voltage exceeds the PV voltage start set point (PV V Start) the  
PV225S will start a wake-up timer (PV T Start).  
a) If the PV voltage remains above the PV start voltage set point for the  
duration of the wake-up timer, the PV225S will transition to Power  
Tracking.  
b) If the PV power drops below the PV power stop set point, (PV P Stop  
the PV225S will start a PV sleep timer (PV T Stop).  
)
c) If the PV voltage and power remain below their respective setpoints for  
the duration of the sleep timer, the PV225S will transition to Shutdown.  
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Auto-restart Feature  
Any State → Fault  
If the PV225S encounters a fault, regardless of operating state, it will transition to  
the Fault state. The PV225S will remain in this state until the fault condition has  
been remedied and cleared. The Fault Code number will appear on the first line of  
the LCD. A description of the fault will show on the second line. The third line of  
the LCD will read “F1 to Clear Fault?”. The fourth line shows the goal state.  
Fault: 0070  
INTERLOCK ACTIVATED  
F1 to Clear Fault  
Goal: PWR Tracking  
LCD Display showing  
Fault Code  
UFCU Keypad  
Figure 2-8 LCD showing Fault Code  
To clear the fault:  
1. See Table 4-1, “Fault Codes” on page 4–4 for a complete listing of Fault  
Codes and possible remedies. Correct the fault condition if possible and  
attempt to clear the fault by pressing “F1”.  
2. The ability to clear the fault can only be done from the READ Menu. If a fault  
occurs while accessing the WRITE Menu, pressing <MENU> once will return  
to the Read Menu, and “F1 to Clear Fault” will appear on the third line  
of the LCD display.  
Auto-restart Feature  
In the event of a utility voltage or frequency excursion outside of those specified  
in Table A-3 on page A–3, the PV225S will automatically transition to a Fault  
condition. Once the Utility recovers for a period of five minutes, the PV225S will  
automatically clear the fault, then resume normal operation.  
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Operation  
Energize Procedure (Startup)  
To start up the PV225S:  
1. Remove any lockout devices from the Utility connection circuit breaker and  
PV disconnect switch.  
2. Close the Utility connection circuit breaker.  
3. Close the AC Disconnect Switch.  
4. Close DC Disconnect Switch.  
5. Turn the ON/OFF switch to the ON position.  
After a 15 second initialization period, the PV225S will automatically transition  
to ‘Waking Up’, given the PV voltage is greater than the PV V Start set point.  
De-Energize/Isolation Procedure (Shutdown)  
The following procedure should be followed to de-energize the PV225S for  
maintenance:  
WARNING  
The terminals of the DC input may be energized if the PV arrays are energized. In  
addition, allow 5 minutes for all capacitors within the main enclosure to discharge after  
disconnecting the PV225S from AC and DC sources.  
To isolate the PV225S:  
1. Turn the ON/OFF switch to the OFF position.  
2. Open the DC Disconnect Switch.  
3. Open the AC Disconnect Switch.  
4. Open the utility connection circuit breaker.  
5. Install lockout devices on the utility connection circuit breaker and DC  
Disconnect Switch.  
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Computer Communications with the PV225S  
Computer Communications with the PV225S  
The PV225S provides multiple options for communicating system status or data  
logging through a personal computer using the Xantrex Solar Graphic User  
Interface (GUI) software.  
The Xantrex Solar Graphic User Interface (GUI) software is a Windows™-based  
program that:  
•
•
•
•
displays system status,  
accesses inverter controls,  
accesses metering and data logging capabilities, and  
controls protective functions.  
If multiple inverters are networked together, the software is capable of tracking up  
to 50 inverters on the same network.  
Determine which method will be used to communicate with the PV225S and  
ensure the appropriate hardware is in place before proceeding with installing the  
GUI. See the “PC Connection Methods” section of the PV225S 225 kW Grid-tied  
Photovoltaic Inverter Planning and Installation Manual for instructions on  
establishing the desired connection if this has not already been done.  
Figure 2-9 GUI Interface Main Menu Screen  
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Operation  
Installing the Graphic User Interface (GUI) Software  
The following section outlines the minimum system requirements for using the  
GUI software and instructions for installing, configuring, and using the software.  
Close all programs running on the computer before proceeding with the  
installation.  
Minimum System Requirements  
The following lists the minimum requirements for using the Xantrex Solar  
Graphic User Interface (GUI) Software.  
•
Personal Computer with a 486DC/66 MHz or higher processor; Pentium™ or  
higher processor recommended.  
•
•
•
•
•
Microsoft Windows™ operating system (Win98 or later).  
50 MB of free hard disk space.  
64 MB of RAM (128 MB recommended)  
56K modem (minimum)  
If using a LAN to access the inverters, a LAN card will be required in the PC.  
Starting the Software Setup Program  
Select one of the following methods to install the software:  
•
•
•
Use Autorun (must be enabled on your CDROM drive).  
Manual Start (assumes that Autorun is not enabled on your CDROM drive).  
Use a Command prompt to initiate the installation program.  
Important: Software levels shown in the following illustrations may not represent the  
most current version.  
Starting the Setup Program Using Autorun  
To install the software with Autorun enabled on your CDROM drive:  
1. Insert the CD into your computer’s CDROM drive. If autorun has not been  
disabled for the CDROM in your computer, the Model Specific Software  
Installation window shown in Figure 2-11 will appear.  
Starting Setup Manually  
To start the program from the CD if Autorun is disabled on your computer:  
1. Insert the XANTREX SOLAR INVERTER GUI – INSTALLATION CD  
into your CDROM drive.  
2. Open Windows Explorer (or Click My Computer) and navigate to the  
CDROM drive to view the contents of the disk.  
3. Double-click on the file GUI_Menu.exe icon. The splash screen shown in  
Figure 2-11 will appear.  
4. Proceed to the Model Specific Software Installation section on page 2–28 to  
continue with the installation.  
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Starting Setup From a Command Prompt  
To start the program from a command prompt:  
1. Insert the XANTREX SOLAR INVERTER GUI – INSTALLATION CD  
into your CDROM drive.  
2. Click on START and select “RUN”.  
3. Enter the drive letter assigned to your CDROM and the name of the  
installation program as shown in Figure 2-10.  
Figure 2-10 Staring Setup from a Command Prompt  
Important: The drive letter assigned to your CDROM may be different from the one  
shown in Figure 2-10. Be sure to use the correct letter for your drive or the program will  
not start.  
4. Click OK. The splash screen shown in Figure 2-11 will appear.  
5. Proceed to the Model Specific Software Installation section on page 2–28 to  
continue with the installation.  
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Operation  
Model Specific Software Installation  
Once the Setup program has been started, installation of the GUI software can  
continue.  
To continue with the GUI software installation:  
1. After the GUI Setup Splash Screen appears (Figure 2-11), click on the button  
INSTALL PV225S GUI. The GUI Setup Welcome Window will appear next  
(Figure 2-12).  
Click here to start  
the model specific  
installation  
Figure 2-11 GUI Splash Screen  
Figure 2-12 GUI Setup Welcome Window  
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Computer Communications with the PV225S  
2. Click OK and the following window will appear:  
Figure 2-13 GUI Setup Start Window  
If the directory provided in this window is acceptable for the installation,  
proceed to Step 4. If not, click on the CHANGE DIRECTORY button and  
provide a new name for the desired destination directory.  
3. Click on the picture of the computer to continue with the installation.  
The following window will appear:  
Figure 2-14 GUI Setup Program Group Window  
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Operation  
4. Click CONTINUE to confirm the program group to be used.  
The following setup progress indication window will appear.  
Figure 2-15 GUI Setup Progress Indicator Window  
5. When completed, you will see this:  
Figure 2-16 GUI Setup Start Window  
6. Click OK. The GUI is now installed on the computer.  
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Computer Communications with the PV225S  
Running the GUI  
To run the GUI software program, log onto the computer and click the following  
menu items in the order shown below.  
1. Window’s START button  
2. PROGRAMS  
3. XANTREX_SOLAR  
4. XANTREX SOLAR GUI  
Remote/LAN Connection  
If no inverter is connected to the COM1 serial port of the computer, the following  
screen will appear:  
Figure 2-17 GUI Interface Screen if Connected Remotely  
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Operation  
Direct Connection  
If the serial communication port of the inverter is connected to the COM1 serial  
port of the computer, the following screen will appear.  
Figure 2-18 GUI Interface Screen if Connected Directly  
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Computer Communications with the PV225S  
GUI Configuration - Adding Inverters  
Once the GUI has started, you will need to configure each Inverter icon to reflect  
the appropriate operational parameters for each inverter that is connected to the  
system. The software automatically defaults to one inverter. To program that  
inverter accordingly, follow the directions provided below.  
To configure the inverters in the GUI:  
1. With the GUI Main Menu open, Right-click on the “Inverter 1” icon.  
2. Click on the tabs to display each page and fill out the required information.  
3. Fill out the Detail Information in the form shown in Figure 2-19.  
Form Tab  
Fill out all the required  
information on this  
form.  
Figure 2-19 Detail Screen  
4. Fill out the Contact Information in the form shown in Figure 2-20.  
Form Tab  
Fill out all the required  
information on this  
form.  
Figure 2-20 Contact Screen  
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Operation  
5. Fill out the Operational Configurations Information in the form shown in  
Figure 2-21 through Figure 2-23. This section has four sub-menu pages to  
cover the following parameters.  
a) Fill out Operational Limits Information requested.  
b) Click on the PV Sub-menu to continue.  
Form Tab  
Fill out all the required  
information on this  
form.  
Sub-menu  
Figure 2-21 Operational Configuration Screen - Limits  
c) Fill out PV Information requested.  
d) Click on the Power Tracker Sub-menu to continue.  
Form Tab  
Fill out all the required  
information on this  
form.  
Sub-menu  
Figure 2-22 Operational Configuration Screen - PV  
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e) Fill out the Power Tracking Information requested.  
f) Click on the Connections Form Tab to continue.  
Form Tab  
Fill out all the required  
information on this  
form.  
Figure 2-23 Operational Configuration Screen - Power Tracker  
6. Fill out the Connection - General Information in the form in Figure 2-24.  
7. Click on the Telephone Fault Configuration sub-menu to continue.  
Form Tab  
Fill out all the  
required  
information  
on this form.  
Sub-menus  
Figure 2-24 Connection Configuration Screen - General  
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Operation  
8. Fill out the Connection - Telephone Fault Configuration Information in the  
form shown in Figure 2-25.  
9. Click on the Telephone Configuration sub-menu to continue.  
Form Tab  
Fill out all the  
required  
information  
on this form.  
Sub-menus  
Figure 2-25 Connection Configuration Screen - Telephone Fault Configuration  
10. Fill out the Connection - Telephone Configuration Information in the form  
shown in Figure 2-26.  
Form Tab  
Click on the OK  
button to save the  
changes and  
return to the GUI  
Main Menu.  
Fill out all the required  
information on this  
form.  
Sub-menus  
Figure 2-26 Connection Configuration Screen - General  
11. Once the information is complete, click the OK button to accept the changes  
and return to the GUI main menu.  
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Computer Communications with the PV225S  
GUI Help  
The GUI software program has a built-in help program. Once the program is  
started, click on the HELP menu item to start the Help program.  
The Help interface is divided into the following sections.  
•
•
•
•
•
•
•
•
Getting Started - IMPORTANT: Read this first  
Setup - Tutorial for setting up the GUI and configuring an inverter  
Windows - Description of each window of the GUI  
Menu Commands - Description of each GUI Menu command  
How to... - How to perform various tasks, by topic  
Reference - Glossary and miscellaneous information  
Messages - Explanation of GUI popup messages  
Problems - Troubleshooting for problems  
Figure 2-27 GUI Interface Screen if Connected Directly  
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Operation  
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Commissioning  
3
Chapter 3, “Commissioning” contains information on safely  
commissioning the PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
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Commissioning  
Commissioning Procedure  
This section provides the procedure necessary to safely and correctly commission  
a PV225S inverter.  
Important: It is important to record any issues encountered while following this  
procedure.  
Summary  
To commission the PV225S:  
1. Ensure the Verification Tests have been completed and have passed  
successfully. See the PV225S 225 kW Grid-tied Photovoltaic Inverter  
Planning and Installation Manual, Section 4.  
2. Begin the PV225S Commissioning Procedure as described in detail further in  
this section. The steps are summarized below.  
a) Start the GUI and open the PV225S Commissioning Procedure file.  
b) Record the Serial Number.  
c) Verify AC and DC Voltages.  
d) Inspect Lower Inductor Enclosure.  
e) Apply Grid Voltage.  
f) Check the Front Panel Display.  
g) Establish communications with the GUI.  
h) Confirm Operational Parameters (AC, DC and Power Tracker).  
i) Verify Door Interlock Functions.  
j) Perform the Matrix Test.  
k) Operate Inverter.  
3. Submit the Test report and warranty form to Xantrex See “PRODUCT  
REGISTRATION” on page WA–3.  
Starting the Commissioning Test File  
1. Start the Xantrex Solar Graphical User Interface (GUI) program.  
a) Once the application has started, select “GENERAL PROCEDURES” from the  
“TOOLS” pull-down menu.  
b) In the “SELECT FILES” dialog box, choose “PV225S COMMISSIONING TEST”  
and click the OPEN button.  
2. Verify that both the AC (S1) and DC (S2) Disconnect switches are open.  
3. Verify the ON/OFF switch (S3) is in the OFF position.  
4. Once you finish these tasks, go back to the GUI and click on the check box to  
indicate the task is complete. Go to the next step by clicking on the "NEXT"  
button.  
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Starting the Commissioning Test File  
Serial Number  
1. Enter the information required by GUI in the white text boxes on the form that  
appears next. The converter serial number is located on a label placed on the  
lower-left front of the Main Inverter Enclosure door.  
2. Once you finish recording the required information, click on the check box to  
indicate the task is complete. Go to the next step by clicking on the "NEXT"  
button.  
Verify AC Voltage  
1. Open the door of the AC Interface Enclosure and verify that the Grid AC  
cables have been installed at S1-2T1, S1-4T2, S1-6T3, TB11, and TB12.  
2. With a voltmeter, verify if AC Grid voltage is present at the bottom of S1-  
2T1, S1-4T2, S1-6T3. These fuses are located in the AC Interface Enclosure.  
a) If voltage is correct, verify phasing using a phase rotation meter. The  
phase rotation should be clockwise “A, B, C”.  
b) If the voltage is not present, contact the installer, site electrician or site  
operator to supply grid voltage to the unit.  
3. If grid voltage is not available to the unit, open the AC Disconnect Switch  
(S1) and lock the AC Interface Enclosure. The Commissioning Test procedure  
must cease at this point. Do not attempt to continue the test until each step can  
be checked and verified.  
a) If grid voltage is not available and the Commissioning Test must be  
stopped, SAVE the Commissioning File. This file will be used once grid  
voltage has been applied and verified.  
4. Once you finish verifying AC voltages, go back to the GUI Commissioning  
Procedure and click on the check box to indicate the task is complete. Go to  
the next step by clicking on the "NEXT" button.  
Verify DC Voltage  
1. Open up the DC Interface Enclosure and verify that the PV DC cables have  
been installed correctly.  
2. With a voltmeter, verify if PV DC voltage is present at S2-6 and K2-6T3.  
3. Verify the correct polarity.  
4. If the voltage is not present, contact the installer, site electrician or site  
operator to supply PV voltage to the unit.  
5. If PV DC voltage is not available to the unit, open the DC Disconnect Switch  
(S2) and lock the DC Interface Enclosure. The Commissioning Test procedure  
must cease at this point. Do not attempt to continue the test until each step can  
be checked and verified.  
a) If PV voltage is not available and the Commissioning Test must be  
stopped, SAVE the Commissioning File. This file will be used once PV  
DC voltage has been applied and verified.  
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Commissioning  
6. Once you finish verifying PV DC voltages, go back to the GUI  
Commissioning Procedure and click on the check box to indicate that the task  
is complete. Go to the next step by clicking on the "NEXT" button.  
Inspect Inductor Enclosure  
1. Remove the back and side access panels to the Inductor Enclosure and inspect  
the connections.  
2. Check for loose cables, rubbing, or interference.  
3. Check the AC Sense Harness to make sure it is terminated and secured  
properly and not touching either inductor L3 or L4.  
4. Correct and record any defects.  
5. Reinstall the Inductor Enclosure access panels removed above.  
6. Once you finish inspecting the Inductor Enclosure, go back to the GUI  
Commissioning Procedure and click on the check box to indicate the task is  
complete. Go to the next step by clicking on the "NEXT" button.  
Apply Grid Voltage  
1. Verify all enclosure doors are closed and locked.  
2. Close the AC Disconnect Switch (S1). This will energize the control power  
circuits.  
3. Look, listen and smell for signs of defects.  
4. Record any defects found.  
5. Once you finish applying the grid voltage, go back to the GUI Commissioning  
Procedure and click on the check box to indicate the task is complete. Go to  
the next step by clicking on the "NEXT" button.  
Front Panel Display  
1. Open then close the AC Disconnect Switch (S1) and look at the Front Panel. It  
should show the Software Versions of the CCU and Front Panel. Record these  
numbers. Then it should go into Initialization.  
2. After about 20 seconds it will be in its “ready” mode. At this time the Fault  
Code “0071 PV SWITCH OPEN” will be reported. Close the PV Disconnect  
Switch (S2) and verify alarm 0071 clears by pressing the “F1” key on the  
keypad of the UFCU. If additional alarms are present, refer to Table 4-1 on  
page 4–4.  
3. Once all faults are clear, the front panel should report Key Disable (“Switched  
Off”) and show Inverter Status.  
4. Using the \/ key, scroll down in the READ Menu and verify that the Time and  
Date are correct.  
5. If not, refer to the “Setting the Date and Time” on page 2–21.  
6. Scroll thru the parameters and verify that they are present.  
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Starting the Commissioning Test File  
7. Once you finish checking the Front Panel Display, go back to the GUI  
Commissioning procedure and click on the check box to indicate the task is  
complete. Go to the next step by clicking on the "NEXT" button.  
Establish Communications with the GUI  
1. Verify that the appropriate hardware has been installed for the desired  
communications connection–Remote or Direct Connect.  
If not, refer to the “PC Connection Methods” section of the PV225S 225 kW  
Grid-tied Photovoltaic Inverter Planning and Installation Manual for  
instructions.  
2. Verify that the communications with the inverter is working and that you have  
established a connection with the inverter through the GUI.  
a) Verify the signal lights on the data communication devices show activity.  
Once communications are established, close the connection.  
b) While at the Inverter, create a fault. This could be done by opening the  
DC Disconnect Switch (S2).  
c) Verify the Inverter calls the End User and reports the fault. The fault  
reporting from the inverter to the End User will take approximately 1  
minute.  
d) Repair the fault–close the DC Disconnect Switch (S2)–and have the End  
User clear the alarm.  
If communications is not working as expected, refer to the “General  
Troubleshooting” on page 4–2 for help.  
3. Once you verify that communication has been established and is working  
properly, go back to the GUI Commissioning Procedure and click on the  
check box to indicate the task is complete. Go to the next step by clicking on  
the "NEXT" button.  
Confirm AC Operational Parameters  
1. Verify the inverter’s AC limits.  
2. Make any necessary changes.  
3. Record these values.  
4. Once you finish these tasks, go back to the GUI Commissioning Procedure  
and click on the check box to indicate the task is complete. Go to the next step  
by clicking on the "NEXT" button.  
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Commissioning  
Confirm DC Operational Parameters  
1. Verify the Inverters PV Settings.  
2. Make any necessary changes.  
3. Record these values.  
4. Once you finish these tasks, go back to the GUI Commissioning Procedure  
and click on the check box to indicate the task is complete. Go to the next step  
by clicking on the "NEXT" button.  
Confirm Power Tracker Configuration Operational Parameters  
1. Verify the inverter’s Power Tracker Configuration.  
2. Make any necessary changes.  
3. Record these values.  
4. Once you finish these tasks, go back to the GUI Commissioning Procedure  
and click on the check box to indicate the task is complete. Go to the next step  
by clicking on the "NEXT" button.  
Verify Door Interlock Functions  
1. Open the front door of the Main Inverter Enclosure and verify a door interlock  
fault is triggered (0070 “INTERLOCK ACTIVATED”).  
2. Bypass the switch by pulling it out into the service position.  
3. Clear the fault.  
4. Once you finish these tasks, go back to the GUI Commissioning Procedure  
and click on the check box to indicate the task is complete. Go to the next step  
by clicking on the "NEXT" button.  
Matrix Test  
1. Confirm that the ON/OFF Switch (S3) in the OFF position.  
2. From the GUI or front panel, select Matrix test from the Goal State menu.  
3. Verify the six yellow LEDs on both the left and right IGBT driver boards are  
blinking. The blinking yellow LEDs are an indication that the IGBT driver  
boards are gating correctly.  
4. If any of the six yellow LEDs on either of the IGBT driver boards are not  
blinking, refer to the Matrix Gate Faults listed on page 4–9 of the “Left  
Matrix Gate” Section.  
5. To stop the test, select Goal state from the GUI or Front Panel and choose  
Shutdown.  
6. Close the door and clear any alarms.  
7. Once you finish the Matrix Test, go back to the GUI Commissioning  
Procedure and click on the check box to indicate the task is complete. Go to  
the next step by clicking on the "NEXT" button.  
3–6  
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Starting the Commissioning Test File  
Operate Inverter  
1. Make sure all doors are closed and locked.  
2. Using the Front Panel or the GUI, set the I PPT Max percent to 25%.  
3. Place the ON/OFF Switch (S3) in the ON position. If the PV voltage is above  
PV Start voltage threshold, followed by a 5-minute delay period, the PV  
contactor (K2) will close, followed by the Main AC contactor (K1). The  
inverter will begin to produce power up to 25% of rated power.  
4. Look, listen and smell for any defects.  
Important: If the PV225S suddenly ceases operation, and faults with an "0014 Grid  
Interface Failed", this could be an indication that the power conductor terminations  
between the Isolation Transformer (T6-X1, T6-X2, and T6-X3) and Main Inverter  
Enclosure (TB5, TB6, and TB7) are incorrect. Open the AC Disconnect Switch (S1) and  
the DC Disconnect Switch (S2). Place the ON/OFF Switch (S3) in the OFF position. Once  
the System is isolated for maintenance, verify that these terminations are correct. Upon  
verification that the terminations are correct, close the AC and DC Disconnect Switches  
and repeat the previous steps.  
5. Make sure the Matrix fans are operating.  
6. If everything is okay, increase the I PPT Max until you reach 100%.  
7. Check all the operating data with the GUI or front panel. Record any  
irregularities.  
8. Let the inverter run.  
9. Once you finish these steps, go back to the GUI Commissioning Procedure  
and click on the check box to indicate the task is complete. Go to the next step  
by clicking on the "NEXT" button.  
Completed Commissioning  
1. Once you have successfully completed all the commissioning steps, save the  
test report to a file.  
2. Email the completed report to:  
[email protected]  
3. Send or Fax a copy of the Product Registration Form on page WA–3 to  
Xantrex. The address and Fax numbers are available on page WA–3.  
Thank You for choosing Xantrex "The Smart Choice for Power".  
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Troubleshooting  
4
Chapter 4, “Troubleshooting” contains information and procedures  
for troubleshooting the PV225S 225 kW Grid-Tied Photovoltaic  
Inverter. It provides descriptions of common situations and errors that  
may occur and provides possible solutions for resolving fault  
conditions. It also provides instructions for clearing faults manually, if  
required.  
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Troubleshooting  
Faults and Fault Codes  
Fault states are automatic from any state of operation. In the event of a fault  
condition, the PV225S will immediately stop processing power and execute an  
immediate orderly shutdown, open both the main AC and DC contactors, and  
remain in a faulted state until the fault is remedied and cleared (manually or  
automatically).  
In the event of an alarm or fault condition, the PV225S will execute an immediate,  
orderly shutdown and remain in a faulted state until the alarm or fault is remedied  
and cleared (manually or automatically).  
•
Faults associated with a grid disturbance clear automatically. The PV225S  
will automatically re-start after a 5-minute delay.  
•
All other faults must be cleared manually.  
All fault conditions arising from within the PV225S are reported to the UFCU  
(Universal Frontpanel Control Unit). The 4-line LCD will display a hexadecimal  
value (fault code) and a brief text description of the fault.  
Most faults are latching and only those faults associated with grid disturbances are  
auto-clearing and thus enable the PV225S to restart after a 5 minute delay period.  
Once the cause of the fault has been identified and corrected, and it is determined  
to be safe to proceed, PV225S faults may be manually cleared from the UFCU  
keypad or using the remote GUI.  
See “Clearing Faults Manually” on page 4–3 for instructions on this procedure.  
General Troubleshooting  
Respond to any PV225S alarm or fault as follows:  
1. Note and document the alarm or fault code and brief text description.  
2. Determine the source of the alarm or fault by referring to Table 4-1, “Fault  
Codes” on page 4–4.  
3. Rectify the alarm or fault condition and attempt to clear the fault from the  
display. See “Clearing Faults Manually” on page 4–3 for instructions on this  
procedure.  
4. If the condition is sustained and cannot be corrected, again note and document  
the fault code and description, and contact either your Distributor / Reseller,  
or Xantrex Customer Service.  
WARNING: Lethal Voltage  
In order to remove all sources of voltage from the PV225S, the incoming power must be  
de-energized at the source. This may be done at the Utility main circuit breaker, and by  
opening the AC disconnect and the DC disconnect switches on the PV225S. Review the  
system configuration to determine all of the possible sources of energy. In addition, allow  
5 minutes for the DC bus capacitors, located on the ceiling of the cabinet, to discharge  
after removing power.  
4–2  
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Clearing Faults Manually  
Clearing Faults Manually  
Faults associated with a grid disturbance clear automatically. These faults include:  
•
•
•
•
0010 (AC Frequency Low),  
0011 (AC Frequency High),  
0012 AC Voltage Low), and  
0013 (AC Voltage High) only.  
Once the AC voltage and frequency return to within the acceptable range, the  
PV225S will clear the fault and automatically restart after a 5-minute delay. All  
other faults associated with the PV225S must be circumvented and cleared  
manually using the UFCU.The following procedure describes how to manually  
clear a fault message from the LCD.  
To clear the fault:  
1. Determine the source of the fault using Table 4-1, “Fault Codes” on page 4–4.  
Correct the fault condition.  
2. Ensure the fault code and “Clear Fault?” message is displayed in the LCD.  
a) If the “Clear Fault?” message is not shown on the second line of the  
LCD, scroll through the read parameter menu with the /\ or \/ keys until  
the message appears.  
3. To clear the fault, press <ENTER>. The PV225S will transition to Sleeping  
mode.  
0071  
PV SWITCH OPEN  
F1 to Clear Fault?  
Goal: PWR TRACKING  
LCD Display showing  
Fault Code  
UFCU Keypad  
Figure 4-1 LCD showing Fault Code  
Important:: If the fault does not clear, the fault condition has not been corrected.  
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Troubleshooting  
Fault Code Descriptions  
Table 4-1 provides a complete description of all the fault conditions that may  
occur on the PV225S.  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
Error  
Code  
0000  
0010  
Fault Source(s)  
No Faults  
Fault Description  
Possible Causes  
S=Software  
N/A  
S
N/A  
N/A  
AC Frequency Low  
This fault indicates that the Utility  
grid frequency is below or fell below  
the minimum allowed value of  
59.3 Hz for greater than 6 cycles.  
This fault is auto-clearing. Once the  
Utility grid frequency has recovered  
within the acceptable operating  
range, the PV225S will qualify the  
value and automatically clear this  
fault and resume normal operation  
after 5 minute delay period.  
•
•
•
Utility grid frequency  
fell below the allowable  
limit  
0011  
AC Frequency High  
S
This fault indicates that the Utility  
grid frequency is above or rose above  
the maximum allowed value of  
60.5Hz for greater than 6 cycles. This  
fault is auto-clearing. Once the Utility  
grid frequency has recovered within  
the acceptable operating range, the  
PV225S will qualify the value and  
automatically clear this fault and  
resume normal operation after  
Utility grid frequency  
rose above the  
allowable limit  
5 minute delay period.  
0012  
AC Voltage Low  
S
This fault indicates that the utility  
grid voltage is below or fell below the  
minimum allowed value of 88% of  
nominal Vac for greater than  
2 seconds, or 50% of nominal VAC  
for greater than 6 cycles. This fault is  
auto-clearing. Once the Utility grid  
voltage has recovered within the  
acceptable operating range, the  
PV225S will qualify the value and  
automatically clear this fault and  
resume normal operation after  
5 minute delay period.  
Utility grid voltage fell  
below the allowable  
limit  
•
•
Fuses F1, F2, F3, F7, F8  
or F9 blown  
P1001 on CCU2 is  
loose or disconnected  
4–4  
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Fault Code Descriptions  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
0013  
AC Voltage High  
S
This fault indicates that the utility  
grid voltage is above or rose above  
the maximum allowed value of 110%  
of nominal Vac for greater than 2  
seconds, or 137% of nominal Vac for  
greater than 2 cycles. This fault is  
auto-clearing. Once the Utility grid  
voltage has recovered within the  
acceptable operating range, the  
PV225S will qualify the value and  
automatically clear this fault and  
resume normal operation after  
5 minute delay period.  
•
Utility grid voltage rose  
above the allowable  
limit  
0014  
0015  
0016  
Grid Interface Failed  
S
S
S
This fault indicates that the PV225S  
has detected an imbalance of AC  
output power of 5kW or greater when  
compared to the DC input power for  
more than 6 seconds. This normally  
means that the connection of the  
PV225S to the grid has failed.  
•
K1 was opened while  
the PV225S was  
processing power  
K1 is inoperable  
K3 is inoperable  
•
•
•
•
SSR1 is inoperable  
TS1 or TS2 is open  
Grid Disconnection  
This fault indicates that the PV225S  
has detected a sudden AC voltage  
increase of greater than 40% of the  
nominal peak-to-peak value. This  
normally is the result of a sudden  
disconnection from the Utility grid  
while the PV225S was processing  
power.  
•
S1 was opened while  
the PV225S was  
processing power  
DC Contactor  
Circuit  
This fault indicates that upon entering  
the Power Tracking State, the  
•
•
•
K2 is inoperable  
SSR2 is inoperable  
TS1 or TS2 is open  
PV225S has detected that the PV  
voltage has remained above the PV  
Start Voltage threshold even after  
commanding the DC contactor to  
close. This condition is indicative of a  
DC contactor circuit failure.  
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Troubleshooting  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
0017  
Phase Error  
S
This fault indicates that the PV225S  
has detected an incorrect phase  
rotation of the incoming AC grid  
voltage. This condition is indicative  
of a power conductor termination  
error, resulting in improper phasing  
sequence.  
•
AC power conductors  
terminated at S1-2T1,  
S1-4T2, and S1-6T3 are  
improperly phased.  
0020  
PV Over-Current  
S
This fault indicates that the PV225S  
has detected a DC current greater  
than the maximum allowed value of  
900 A DC.  
•
•
CT7 is inoperable  
CCU2 15 Vdc Power  
Supply is defective  
P3 on CCU2 is loose or  
disconnected  
•
•
PV system wiring short  
0021  
0023  
XX31  
PV Over-Voltage  
Bus Voltage High  
S
This fault indicates that the PV225S  
has detected a DC input voltage of  
greater than the maximum allowed  
value of 600 Vdc.  
•
•
PV system wiring short  
Lightning strike on PV  
system wiring  
H
S
This fault indicates that the PV225S  
has detected that the DC bus voltage  
has exceeded the maximum allowed  
value of 925 Vdc.  
•
•
PV system wiring short  
Lightning strike on PV  
system wiring  
Left Matrix Over  
Current  
This fault indicates that the PV225S  
has detected that the AC current on  
one or more phases of the inverter  
output has exceeded the maximum  
•
•
•
•
CT1, CT2, or CT3 are  
inoperable  
CCU2 15 Vdc Power  
Supply is defective  
P3 on CCU2 is loose or  
disconnected  
allowed value of 712 Arms  
.
The first two digits of the fault code  
indicate the particular phase where  
the over current occurred as follow:  
AC system wiring short  
•
•
•
0131 - Matrix over current in  
phase A  
0231 - Matrix over current in  
phase B  
0431 - Matrix over current in  
phase C  
If more than one phase faults  
simultaneously, the two first digits  
are added in hexadecimal form to  
indicate an over current condition in  
more than one phase, thus the error  
code will contain the summation of  
the faulted phases.  
4–6  
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Fault Code Descriptions  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
XX32  
Right Matrix Over  
Current  
S
This fault indicates that the PV225S  
has detected that the AC current on  
one or more phases of the inverter  
output has exceeded the maximum  
•
•
•
•
CT4, CT5, or CT6 are  
inoperable  
CCU2 15Vdc Power  
Supply is defective  
P3 on CCU2 is loose or  
disconnected  
allowed value of 712 Arms  
.
The first two digits of the fault code  
indicate the particular phase where  
the over current occurred as follow:  
AC system wiring short  
•
•
•
0132 - Matrix over current in  
phase A  
0232 - Matrix over current in  
phase B  
0432 - Matrix over current in  
phase C  
If more than one phase faults  
simultaneously, the two first digits  
are added in hexadecimal form to  
indicate an over current condition in  
more than one phase, thus the error  
code will contain the summation of  
the faulted phases.  
0033  
Ground Over  
Current  
S
This fault indicates that the PV225S  
has detected that the ground fault  
current has exceeded the maximum  
allowed value. This maximum  
allowed value for ground fault current  
is a user-configurable setting with a  
range of 1 to 20 Adc. The default  
setting for this value is 10 Adc.  
•
•
CT8 is inoperable  
CCU2 15 Vdc Power  
Supply is defective  
P3 on CCU2 is loose or  
disconnected  
Ground -to-AC or  
DC-to-System wiring  
short  
•
•
0040  
Programming  
Software  
S
This code indicates that the PV225S  
has detected that the system is in  
Programming mode. This fault does  
not indicate any malfunction with the  
PV225S, but is merely an indication  
that the system software is in the  
process of being downloaded into the  
EEPROMs of the CCU2.  
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Troubleshooting  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
0041  
State Invalid  
S
The state machine implemented  
within the CCU2 system software  
governs the operation of the PV225S.  
This fault indicates that the PV225S  
has detected an unknown system  
variable and has encountered an  
invalid state.  
•
Internal RAM error  
• CPU error  
0042  
Serial EEPROM  
Write Error  
S
This fault indicates that the PV225S  
has detected a serial EEPROM write  
error. The CCU2 controller board  
performs a verification check of data  
written to ROM compared to what is  
read back.  
•
•
Internal ROM error  
CPU error  
0043  
0044  
Serial EEPROM  
Timeout  
S
S
This fault indicates that the PV225S  
has detected that when writing data to  
the serial EEPROM, a confirmation  
timer of 300mS has expired.  
•
•
Internal ROM error  
CPU error  
Bad NOVRAM  
Memory  
This fault indicates that the PV225S  
has detected that one of the two non-  
volatile memory banks on the CCU2  
controller board has failed. The  
CCU2 performs a series of tests to  
confirm the validity of the  
•
•
Internal NOVRAM  
error  
CPU error  
NOVRAM, and one of the two banks  
has produced errors.  
0045  
Interrupt 2 Timeout  
S
This fault indicates that the PV225S  
has detected that an interrupt 2  
timeout has occurred. The CCU2  
controller board performs a  
•
•
Internal A to D  
converter error  
CPU error  
conversion validation of analog-to-  
digital data within the A to D  
converters. If validation of the  
conversion is not performed within  
500mS, an interrupt 2 timeout fault  
will occur.  
0047  
Software Test  
S
This fault indicates that the PV225S  
has detected that a software test fault  
has occurred. This is a simulated fault  
used for debugging purposes.  
4–8  
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Fault Code Descriptions  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
0048  
Bad Memory  
S
This fault indicates that the PV225S  
has detected that the SRAM DIMM  
on the CCU2 controller board has  
failed. The CCU2 performs a series  
of tests to confirm the validity of the  
SRAM and the memory module has  
produced errors.  
•
•
Internal SRAM error  
CPU error  
XX50  
Left Matrix Gate  
S
The CCU2 controller sends digitized  
timing signals for gating the IGBT’s  
via the IPM driver board and bi-  
directional fiber optic  
•
•
•
•
Fiber-optic harness is  
loose or disconnected  
PS1 15 Vdc Power  
Supply is defective  
P1 on IPM driver board  
is loose or disconnected  
IPM internal error  
condition  
communication. This fault indicates  
that the PV225S has detected that an  
IGBT gate drive fault has occurred in  
the left matrix. An internal protection  
circuit within the individual IPM  
devices of the IGBT matrix also  
generates a gate fault as the result of  
either short circuit, over current, over  
temperature, or an under voltage  
condition.  
The first two digits of the fault code  
indicate the particular IGBT that  
reported the fault, as follows:  
•
•
•
•
•
•
0150 (A+)  
0250 (A–)  
0450 (B+)  
0850 (B–)  
1050 (C+)  
2050 (C–)  
If more than one IGBT faults  
simultaneously, the two first digits  
are added in hexadecimal form to  
indicate that the gate drive fault has  
occurred in more than one phase, thus  
the error code will contain the  
summation of the faulted phases.  
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Troubleshooting  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
XX51  
Right Matrix Gate  
S
The CCU2 controller sends digitized  
timing signals for gating the IGBT’s  
via the IPM driver board and bi-  
directional fiber optic  
communication. This fault indicates  
that the PV225S has detected that an  
IGBT gate drive fault has occurred in  
the right matrix. An internal  
•
•
•
•
Fiber-optic harness is  
loose or disconnected  
PS1 15 Vdc Power  
Supply is defective  
P1 on IPM driver board  
is loose or disconnected  
IPM internal error  
condition  
protection circuit within the  
individual IPM devices of the IGBT  
matrix also generates a gate fault as  
the result of either short circuit, over  
current, over temperature, or an under  
voltage condition.  
The first two digits of the fault code  
indicate the particular IGBT that  
reported the fault, as follows:  
•
•
•
•
•
•
0151 (A+)  
0251 (A–)  
0451 (B+)  
0851 (B–)  
1051 (C+)  
2051 (C–)  
If more than one IGBT faults  
simultaneously, the two first digits  
are added in hexadecimal form to  
indicate that the gate drive fault has  
occurred in more than one phase, thus  
the error code will contain the  
summation of the faulted phases.  
XX60  
Left Matrix  
Temperature  
S
This fault indicates that the PV225S  
has detected that the temperature of  
the left IGBT matrix aluminum  
heatsink has exceeded the maximum  
allowed value of 95 °C.  
•
•
Fuses F15 or F16 blown  
External cooling fan  
inoperable  
Air flow on heat sink  
impeded due to  
accumulation of debris  
Operation above rated  
ambient temperature for  
an extended period of  
time  
•
•
4–10  
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Fault Code Descriptions  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
XX61  
Right Matrix  
Temperature  
S
This fault indicates that the PV225S  
has detected that the temperature of  
the right IGBT matrix aluminum  
heatsink has exceeded the maximum  
allowed value of 95 °C.  
•
•
Fuses F15 or F16 blown  
External cooling fan  
inoperable  
Air flow on heat sink  
impeded due to  
accumulation of debris  
Operation above rated  
ambient temperature for  
an extended period of  
time  
•
•
0070  
0071  
0075  
Interlock Activated  
H
H
S
This fault indicates that the PV225S  
has detected that the door of the Main  
Inverter Enclosure is open and the  
door interlock switch is in the active  
position. This fault is primarily for  
personnel safety. Opening the door of  
the Main Inverter Enclosure while the  
PV225S is processing power will  
cause an immediate orderly shutdown  
of the system.  
•
Door is open and  
interlock switch is  
active  
Interlock switch is  
inoperable  
P2 or P3 on CCU2 is  
loose or disconnected  
CCU2 15Vdc Power  
Supply is defective  
•
•
•
PV Switch Open  
This fault indicates that the PV225S  
has detected that the DC Disconnect  
Switch (S2) is open and the auxiliary  
switch is in the active position. This  
fault is primarily for personnel safety.  
Opening the DC disconnect switch  
while the PV225S is processing  
power will cause an immediate  
•
DC disconnect switch is  
open and auxiliary  
switch is active  
Auxiliary switch is  
inoperable  
P2 or P3 on CCU2 is  
loose or disconnected  
CCU2 15 Vdc Power  
Supply is defective  
•
•
•
orderly shutdown of the system.  
Shutdown Remotely  
This fault indicates that the PV225S  
has detected that the system was  
commanded via the GUI to transition  
to the Shutdown State. This fault is  
not indicative of a failure or  
•
Remote Shutdown  
command via the GUI  
malfunction, but primarily used to  
disable the system remotely.  
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Troubleshooting  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
0080  
Left Matrix Not ON  
S
S
S
S
This fault indicates that the PV225S  
has detected that the left IGBT matrix  
(FPGA) was not enabled after having  
sent a command for it to turn on. The  
CCU2 sends an acknowledge bit to  
confirm the command is received.  
This fault is primarily a watch-dog  
between software and hardware to  
ensure control of the left IGBT matrix  
(FPGA).  
•
•
Software acknowledge  
bit not accepted  
FPGA inoperable  
0081  
0084  
0085  
Right Matrix Not  
ON  
This fault indicates that the PV225S  
has detected that the right IGBT  
matrix (FPGA) was not enabled after  
having sent a command for it to turn  
on. The CCU2 sends an acknowledge  
bit to confirm the command is  
received. This fault is primarily a  
watch-dog between software and  
hardware to ensure control of the  
right IGBT matrix (FPGA).  
•
•
Software acknowledge  
bit not accepted  
FPGA inoperable  
Left Matrix Not OFF  
This fault indicates that the PV225S  
has detected that the left IGBT matrix  
(FPGA) was not disabled after having  
sent a command for it to turn off. The  
CCU2 sends an acknowledge bit to  
confirm the command is received.  
This fault is primarily a watch-dog  
between software and hardware to  
ensure control of the left IGBT matrix  
(FPGA).  
•
•
Software acknowledge  
bit not accepted  
FPGA inoperable  
Right Matrix Not  
OFF  
This fault indicates that the PV225S  
has detected that the right IGBT  
matrix (FPGA) was not disabled after  
having sent a command for it to turn  
off. The CCU2 sends an acknowledge  
bit to confirm the command is  
•
•
Software acknowledge  
bit not accepted  
FPGA inoperable  
received. This fault is primarily a  
watch-dog between software and  
hardware to ensure control of the  
right IGBT matrix (FPGA).  
4–12  
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Fault Code Descriptions  
Table 4-1 Fault Codes  
Fault Type  
H=Hardware  
S=Software  
Error  
Code  
Fault Source(s)  
Fault Description  
Possible Causes  
F000  
Shipping Software  
S
This fault indicates that the PV225S  
has detected that the CCU2 controller  
board has shipping software installed.  
This software is not operational  
software. The correct system  
software for the PV225S must be  
downloaded into the CCU2 controller  
board.  
F100  
Software Restarted  
S
This fault indicates that the PV225S  
has detected that the system software  
has been re-booted. This is not a true  
fault, and does not effect the  
operation of the PV225S. It is  
primarily used as a watchdog for  
debugging purposes.  
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Preventative  
Maintenance  
5
Chapter 5, “Preventative Maintenance” contains information and  
procedures for performing preventative maintenance on the PV225S  
225 kW Grid-Tied Photovoltaic Inverter.  
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Preventative Maintenance  
Maintenance Safety  
Prior to following any Maintenance Procedures, follow the System Shutdown and  
Lock-out and Tag procedure.  
Operational Safety Procedures  
Never work alone when servicing this equipment. A team of two is required until  
the equipment is properly de-energized, locked-out and tagged, and verified de-  
energized with a meter. Thoroughly inspect the equipment prior to energizing.  
Verify that no tools or equipment have inadvertently been left behind.  
WARNING: Shock Hazard  
Review the system schematic for the installation to verify that all available energy sources  
are de-energized. DC bus voltage may also be present. Be sure to wait the full 5 minutes to  
allow the capacitors to discharge completely.  
De-Energize/Isolation Procedure  
The following procedure should be followed to de-energize the PV225S for  
maintenance:  
WARNING: Shock Hazard  
The terminals of the DC input may be energized if the PV arrays are energized. In  
addition, allow 5 minutes for all capacitors within the main enclosure to discharge after  
disconnecting the PV225S from AC and DC sources.  
To isolate the PV225S:  
1. Turn the ON/OFF switch to the OFF position.  
2. Open the DC Disconnect Switch.  
3. Open the AC Disconnect Switch.  
4. Open the utility connection circuit breaker.  
5. Install lockout devices on the utility connection circuit breaker and DC  
Disconnect Switch.  
5–2  
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Maintenance Safety  
Lockout and Tag  
Safety requirements mandate that this equipment not be serviced while energized.  
Power sources for the PV225S must be locked-out and tagged prior to servicing.  
Each energy source should have a padlock and tag installed on each energy source  
prior to servicing.  
WARNING: Shock Hazard  
Review the system schematic for the installation to verify that all available energy sources  
are de-energized. DC bus voltage may also be present. Be sure to wait the full 5 minutes to  
allow the capacitors to discharge completely.  
The PV225S can be energized from both the AC source and the DC source. To  
ensure that the inverter is de-energized prior to servicing, lock out and tag the  
PV225S using the following procedure.  
1. Open, lockout, and tag the incoming power at the utility main circuit breaker.  
2. Open, lockout, and tag the AC Disconnect Switch (S1) on AC interface  
assembly. See Figure 1-8 on page 1–12 for the location of the AC Disconnect  
Switch.  
3. Open, lockout, and tag the DC Disconnect Switch (S2) on DC interface  
assembly. See Figure 1-8 on page 1–12 for the location of the DC Disconnect  
Switch.  
4. Using a confirmed, accurate meter, verify all power to the inverter is de-  
energized. A confirmed, accurate meter must be verified on a known voltage  
before use. Ensure that all incoming energy sources are de-energized by  
checking the following locations.  
a) Inverter Terminals: TB5, TB6, and TB7 (Phase A, B, C)  
See Figure 5-1 on page 5–4.  
b) Utility Terminals: Top of S1-2T1, S1-4T2, and S1-6T3  
See Figure 5-2 on page 5–4.  
c) PV Terminals: Bottom of S2-6, K2-6T3, and TB4 (PV+, PV-, GND)  
See Figure 5-3 on page 5–5.  
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Preventative Maintenance  
AC Ground Bar (TB1)  
to be used for the  
Chassis Ground  
TB7  
TB6  
TB5  
Figure 5-1 Inverter AC Terminal Locations in the Main Inverter Enclosure  
AC Interface Enclosure  
Enlargement of  
Terminal Connectors  
in the AC Interface  
Enclosure  
TB11  
S1-6T3  
(C phase)  
S1-2T1  
(A phase)  
S1-4T2  
(B phase)  
TB12  
AC Interface Enclosure  
Figure 5-2 Utility AC Terminal Connections in the AC Interface Enclosure  
5–4  
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Maintenance Safety  
PV POSitive (S2-6)  
PV NEGative (K2-6T3)  
PV GrouND (TB4)  
Figure 5-3 PV Terminal Locations  
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Preventative Maintenance  
Periodic Maintenance  
Xantrex Technology recommends that the following preventative maintenance  
procedures be carried out on the PV225S.  
Monthly Intervals or As Required  
Perform the following preventative maintenance tasks on a monthly basis or as  
required.  
Aluminum Extrusion Heatsinks  
❐ Inspect the aluminum extrusion heatsinks and external cooling fans for  
accumulation of dirt and debris. Accumulation of dirt and debris on the  
aluminum extrusion heatsinks and external cooling fans will decrease their  
ability to transfer heat, which may cause the PV225S to enter a fault state  
based upon an over-temperature alarm. Remove and clean if debris is present.  
Fan Operation  
❐ Verify proper operation of the external cooling fans (B1 and B2) located  
above the matrix aluminum extrusion heatsinks. These fans operate when the  
K1 contactor is closed. If present, remove any debris from the fans.  
Internal Circulation Fan  
❐ Verify the internal circulation fan (B3) is operating whenever there is utility  
power applied to the PV225S.  
Inductor Enclosure Cooling Fans  
❐ Verify that the inductor enclosure cooling fans (B4 and B5) operate whenever  
the PV225S is processing power. The airflow direction should be from the  
outside, forcing air into the enclosure. If present, remove any debris from the  
fans.  
5–6  
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Periodic Maintenance  
Six-month Intervals  
Perform the following preventative maintenance tasks on a six-month basis or as  
required.  
Enclosure Seals  
❐ Inspect the enclosure access panel seal. If damaged, replace with equivalent  
closed cell foam gasket. Call your Xantrex Technology distributor for factory  
replacements or specifications.  
Electrical Connections  
❐ Inspect the condition of all wiring within and interfacing to the PV225S.  
❐ Inspect all compression-type cable terminations and box-type connections  
within the AC and DC Interface Enclosures, Main Inverter Enclosure, and  
Transformer Enclosure for damage caused from high temperature.  
❐ Also check these terminations and connections for signs of corrosion. If any  
cabling or wiring within and interfacing to the PV225S are found to be or are  
suspected to be unacceptable, contact your Xantrex Technology distributor for  
factory replacements or recommendations. Replacement of any damaged  
wires will be necessary.  
❐ Verify all mechanical connections are sufficiently tightened. Verify all  
conduction surfaces are clean and free of corrosion. Mechanical electrical  
connections may loosen over time primarily due to thermal cycling during  
normal operation. As electrical connections loosen, impedance will increase  
at the connection, eventually leading to possible fire and component damage.  
It is critical to check all electrical connections every six months.  
See termination torque specifications for AC connections in Table A-4 on  
page A–4. See termination torque specifications for DC connections in Table A-5  
on page A–4.  
Inductor Enclosure  
❐ Remove the access panels on the inductor enclosure and inspect for any  
accumulated dirt and debris within the enclosure. Vacuum enclosure  
whenever dust or dirt is present.  
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Specifications  
A
Appendix A provides the environmental and electrical specifications  
for the PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
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Specifications  
System Specifications  
The PV225S has been designed for photovoltaic power systems, which operate  
within the following specifications.  
CAUTION: Equipment Damage  
Operation of the PV225S in a manner other than specified in this manual may cause  
damage to the PV225S and other system components and will void the terms of the  
warranty.  
Environmental Specifications  
The following environmental specifications are the same for both models of the  
PV225S 225 kW Grid-Tied Photovoltaic Inverter.  
Table A-1 Environmental Specifications  
Specification  
Value  
Dimensions  
Inverter and DC Interface  
88.5 in H x 80 in W x 32 in D (225 cm H x 203 cm W x 81 cm)  
49.5 in H x 61.5 in W x 35.5 in D (126 cm H x 156 cm W x 90 cm D)  
Transformer and AC Interface  
Overall System Footprint:  
Layout Option A  
Layout Option B  
14 ft W x 5 ft L (approximate) (4.3 m x 1.5 m)  
10 ft W x 9 ft L (approximate) (3 m W x 2.7 m L)  
Weight  
Inverter and DC Interface  
Transformer and AC Interface  
Overall Weight  
2300 lbs (approximate)  
2350 lbs (approximate)  
4650 lbs (approximate)  
Allowable Ambient Temperature  
Operating  
Storage  
-20 °C to 50 °C Maximum  
-40 °C to 50 °C Maximum  
Relative Humidity  
Elevation  
To 95%, Non-condensing  
Power Derated above 6600 ft  
Clearance (ventilation and  
serviceability)  
In front of access doors: 36 in (91 cm)  
In front of access panels: 36 in (91 cm)  
Sides: 12 in (30 cm)  
Back: 6 in (15 cm)  
Maximum Distance between Main  
Inverter Enclosure and AC Interface/  
Transformer Enclosure  
15 ft (4.5 m)  
A–2  
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System Specifications  
Electrical Specifications  
Table A-2 provides the AC and DC specifications for the PV225S.  
Table A-2 Electrical Specifications  
Specification  
PV225S-480-P  
Nominal AC Input Voltage  
480 Vac  
(+10% to -12% acceptable range) (422 to 528 Vac)  
Maximum AC Output Current  
271 Arms  
Nominal AC Input Frequency  
60 Hz  
(+0.5 to -0.7 Hz acceptable range) (59.3 to 60.5 Hz)  
Output Power  
225 kW  
Peak Power Tracking Window  
Maximum Open Circuit Voltage  
Maximum DC Input Current  
300 to 600 Vdc  
600 Vdc  
781 amps  
Over Voltage, Under Voltage and Frequency Ranges  
Table A-3 provides the over voltage, under voltage, over-frequency, and under-  
frequency detection limits for the PV225S. These detection limits have been  
factory tested and deemed to be in compliance with IEEE-292 and UL 1741  
requirements for utility interaction.  
Table A-3 Over/Under Voltage and Over/Under Frequency Ranges  
PV225S-480-P  
Vac Condition  
(% of Nominal)  
Voltage Range  
Trip Time  
Vac < 50%  
Vac < 240  
6 cycles  
50% < Vac < 88%  
88% < Vac < 110%  
110% < Vac < 137%  
137% < Vac  
240 < Vac < 422  
422 < Vac < 528  
528 < Vac < 657  
657 < Vac  
2 seconds  
normal operation  
2 seconds  
2 cycles  
f < rated -0.7  
f < 59.3  
6 cycles  
f > rated +0.5  
f > 60.5  
6 cycles  
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Specifications  
Wire Gauge and Torque Requirements  
Table A-4 provides acceptable wire gauges, bolt sizes, and torque values for AC  
terminal connections.  
Table A-4 AC Terminal Wire Gauge, Bolt Size, and Torque Values  
AC Terminal  
Connections  
Acceptable Wire Size Range  
(both models)  
Bolt(Hardware)  
Size  
Torque  
Requirements  
TB1  
(Chassis Ground)  
500 MCM to #4 AWG (1 stud per pole)  
3/8-16  
420 in-lb (47.5 Nm)  
TB12  
(System Ground)  
500 MCM to #4 AWG (1 stud per pole)  
3/8-16  
420 in-lb (47.5 Nm)  
TB11 (Neutral)  
500 MCM to #4 AWG (1 stud per pole)  
350 MCM to #6 AWG (1 stud per phase)  
3/8-16  
M10  
228 in-lb (25.7 Nm)  
310 in-lb (35.0 Nm)  
S1-2T1, S1-4T2,  
S1-6T3  
T6-X1, T6-X2, T6-  
X3  
350 MCM to #6 AWG (2 stud per phase)  
3/8-16  
420 in-lb (47.45 Nm)  
375 in-lb (42.4 Nm)  
TB5, TB6, TB7  
350 MCM to #4 AWG (6 openings per phase)  
3/8 Hex  
Table A-5 provides acceptable wire gauges, bolt sizes, and torque values to be  
connected to the PV225S DC terminal connections.  
Table A-5 DC Terminal Wire Gauge, Bolt Size, and Torque Values  
DC Terminal  
Connections  
Acceptable Wire Size Range  
(both models)  
Bolt (Hardware)  
Size  
Torque  
Requirements  
S2-6, K2-6T3, TB4  
600 MCM to #4 AWG (2 openings per pole)  
1/2 Hex  
600 in-lb (67.8 Nm)  
A–4  
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Appendix A  
Schematics  
Figure A-1 Electrical Diagram (sample)  
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Schematics  
Appendix A  
6
5
4
3
2
1
REVISIONS  
3RD ANGLE  
PROJECTION  
D
C
B
A
D
C
B
A
CONFIDENTIAL INFORMATION OF XANTREX TECHNOLOGY INC.  
COPYRIGHT 2004 XANTREX TECHNOLOGY INC.. THIS DOCUMENT IS THE PROPERTY OF  
XANTREX TECHNOLOGY INC., AND SHALL NOT BE REPRODUCED, COPIED, OR USED AS THE  
BASIS FOR THE MANUFACTURE OR SALE OF EQUIPMENT, WITHOUT THE EXPRESS WRITTEN  
PERMISSION OF: XANTREX TECHNOLOGY INC.  
X.XX  
± .02  
X.XXX  
± .005  
ANGLES  
± 1.0°  
TOLERANCES:  
(UNLESS OTHERWISE SHOWN)  
TM  
TITLE:  
SCHEMATIC, SYSTEM, PV225S-480-P  
AUT  
REV.  
SIZE  
DWG No.  
DIMENSIONS ARE IN  
12-11-03  
B. ECCLES  
DES  
A
INCHES UNLESS  
D
N/A  
SCALE: NTS  
1
OF  
SHT  
152812  
OTHERWISE SHOWN  
N/A  
3
6
5
4
3
2
1
Figure A-2 PV225S Schematic for Main Power Distribution (152812 A1)  
A-6  
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Appendix A  
Schematics  
6
5
4
3
2
1
REVISIONS: SEE SHEET 1  
3RD ANGLE  
PROJECTION  
D
C
B
A
D
C
B
A
TITLE:  
SCHEMATIC, SYSTEM, PV225S-480-P  
REV.  
SIZE  
DWG No.  
DIMENSIONS ARE IN  
INCHES UNLESS  
A
D
SCALE:NTS  
OF  
SHT  
OTHERWISE SHOWN  
152812  
TM  
2
3
6
5
4
3
2
1
Figure A-3 PV225S Schematic for Control Power Distribution (152812 A2)  
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Schematics  
Appendix A  
6
5
4
3
2
1
REVISIONS: SEE SHEET 1  
3RD ANGLE  
PROJECTION  
D
C
B
A
D
C
B
A
TITLE:  
SCHEMATIC, SYSTEM, PV225S-480-P  
REV.  
SIZE  
DWG No.  
DIMENSIONS ARE IN  
INCHES UNLESS  
A
D
SCALE: NTS  
OF  
SHT  
OTHERWISE SHOWN  
152812  
TM  
3
3
6
5
4
3
2
1
Figure A-4 PV225S Schematic for Converter Control Unit (152812 A3)  
A-8  
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Warranty and Product Information  
Xantrex Limited Warranty  
PV225S GRID TIE INVERTER  
(PV SERIES INVERTER)  
1. What does this warranty cover and how long does it last?  
This Limited Warranty is provided by Xantrex Technology Inc. (“Xantrex”) and covers defects in workmanship and  
materials in your PV Series Inverter. This warranty lasts for a Warranty Period of 5 years from the date of purchase  
at point of sale to you, the original end user customer.  
2. What will Xantrex do?  
Xantrex will, at its option, repair or replace the defective product free of charge, provided that you notify Xantrex of  
the product defect within the Warranty Period, and provided that Xantrex through inspection establishes the existence  
of such a defect and that it is covered by this Limited Warranty.  
Xantrex will, at its option, use new and/or reconditioned parts in performing warranty repair and building  
replacement products. Xantrex reserves the right to use parts or products of original or improved design in the repair  
or replacement. If Xantrex repairs or replaces a product, its warranty continues for the remaining portion of the  
original Warranty Period or 90 days from the date of the return shipment to the customer, whichever is greater. All  
replaced products and all parts removed from repaired products become the property of Xantrex.  
Xantrex covers both parts and labor necessary to repair the product, and return shipment to the customer via a  
Xantrex-selected non-expedited surface freight within the contiguous United States and Canada. Alaska and Hawaii  
are excluded. Contact Xantrex Customer Service for details on freight policy for return shipments outside of the  
contiguous United States and Canada.  
3. What does this warranty not cover?  
This Limited Warranty does not cover normal wear and tear of the product or costs related to the removal,  
installation, or troubleshooting of the customer’s electrical systems. This warranty does not apply to and Xantrex will  
not be responsible for any defect in or damage to the product:  
a) if it has been misused, neglected, improperly installed, physically damaged or altered, either internally or exter-  
nally, or damaged from improper use or use in an unsuitable environment;  
b) if it has been subjected to fire, water, generalized corrosion, biological infestations, or input voltage that creates  
operating conditions beyond the maximum or minimum limits listed in the Xantrex product specifications  
including high input voltage from generators and lightning strikes;  
c) if repairs have been done to it other than by Xantrex or its authorized service centers (hereafter “ASCs”);  
d) if it is used as a component part of a product expressly warranted by another manufacturer; and  
e) if its original identification (trade-mark, serial number) markings have been defaced, altered, or removed.  
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Warranty and Return  
4. Product Disclaimer  
THIS LIMITED WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY PROVIDED BY XANTREX IN CONNECTION WITH YOUR  
XANTREX PRODUCT AND IS, WHERE PERMITTED BY LAW, IN LIEU OF ALL OTHER WARRANTIES, CONDITIONS,  
GUARANTEES, REPRESENTATIONS, OBLIGATIONS AND LIABILITIES, EXPRESS OR IMPLIED, STATUTORY OR OTHERWISE IN  
CONNECTION WITH THE PRODUCT, HOWEVER ARISING (WHETHER BY CONTRACT, TORT, NEGLIGENCE, PRINCIPLES OF  
MANUFACTURER’S LIABILITY, OPERATION OF LAW, CONDUCT, STATEMENT OR OTHERWISE), INCLUDING WITHOUT  
RESTRICTION ANY IMPLIED WARRANTY OR CONDITION OF QUALITY, MERCHANTABILITY OR FITNESS FOR A PARTICULAR  
PURPOSE. ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TO THE EXTENT  
REQUIRED UNDER APPLICABLE LAW TO APPLY TO THE PRODUCT SHALL BE LIMITED IN DURATION TO THE PERIOD  
STIPULATED UNDER THIS LIMITED WARRANTY.  
IN NO EVENT WILL XANTREX BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES,  
LOSSES, COSTS OR EXPENSES HOWEVER ARISING WHETHER IN CONTRACT OR TORT INCLUDING WITHOUT RESTRICTION  
ANY ECONOMIC LOSSES OF ANY KIND, ANY LOSS OR DAMAGE TO PROPERTY, ANY PERSONAL INJURY, ANY DAMAGE OR  
INJURY ARISING FROM OR AS A RESULT OF MISUSE OR ABUSE, OR THE INCORRECT INSTALLATION, INTEGRATION OR  
OPERATION OF THE PRODUCT.  
5. Limitations to Product Disclaimer  
If this product is a consumer product, federal law does not allow an exclusion of implied warranties. To the extent you  
are entitled to implied warranties under federal law, to the extent permitted by applicable law they are limited to the  
duration of this Limited Warranty. Some states and provinces do not allow limitations or exclusions on implied  
warranties or on the duration of an implied warranty or on the limitation or exclusion of incidental or consequential  
damages, so the above limitation(s) or exclusion(s) may not apply to you. This Limited Warranty gives you specific  
legal rights. You may have other rights which may vary from state to state or province to province.  
6. Information Disclaimer  
WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, UNLESS SPECIFICALLY AGREED TO BY IT IN WRITING,  
XANTREX  
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR OTHER  
INFORMATION PROVIDED IN MANUALS OR OTHER DOCUMENTATION PROVIDED BY IT IN CONNECTION WITH THE  
PRODUCT; AND  
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES, WHETHER SPECIAL,  
DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION.  
THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.  
7. WARNING: LIMITATIONS ON USE  
Please refer to your product user manual for limitations on uses of the product. Specifically, please note  
that the PV Series Inverter is not intended for use in connection with life support systems and Xantrex  
makes no warranty or representation in connection with any use of the product for such purposes.  
Xantrex Technology Inc.  
161-G South Vasco Road  
Livermore, CA 94551  
USA  
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Warranty and Return  
PRODUCT REGISTRATION  
To ensure the fastest possible service, please ensure your system information submitted to Xantrex. Please  
fill the required information in and send a copy of this page to Xantrex Technology Inc. along with a copy  
of the GUI Commissioning File.  
Fax number:  
925 455 0382  
Mail to:  
Xantrex Technology Inc.  
161-G South Vasco Road  
Livermore, CA 94551  
Attention: Customer Service  
USA  
Customer Company Name: __________________________________  
Project Name: __________________________________  
System Location Information:  
Street __________________________________  
City __________________________________  
State / Zip Code __________________________________  
Xantrex Inverter Model: __________________________________  
Serial Number of Inverter: __________________________________  
Serial Number of Isolation Transformer: __________________________________  
Name of Distributor (if applicable): __________________________________  
__________________________________________  
__________________________________________  
Customer Authorized Signature  
Date:  
Xantrex Authorized Signature  
Date:  
Note: Please email the PV225S Commissioning Report File to: [email protected].  
152607  
WA–3  
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WA–4  
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Index  
I
A
Inductor Enclosure 1–7  
Installation 2–28  
integrated controller 1–2  
Internal Metrics 1–18  
Isolation Procedure 5–2  
AC Interface Enclosure 1–8  
Accumulated Values 1–18  
Anti-Island Protection 1–5  
Auto-restart Feature 2–23  
Autorun 2–26  
L
C
Lockout and Tag 5–3  
Clearing Faults Manually 4–3  
Command Prompt 2–27  
Commissioning 3–2  
Communication Enclosure 1–9  
Communications 2–25  
Configurable Parameters 1–18  
Controls 1–10  
M
Main Enclosure Door Interlock Switch 1–10  
Main Inverter Enclosure 1–7  
Maintenance Safety 5–2  
Converter Control Unit (CCU2) 1–7  
O
On/Off Switch 1–11  
Operating States 2–4  
Fault 2–5  
Manual Current 2–5  
Matrix Test 2–5  
Power Tracking 2–4  
Shutdown 2–5  
D
Data Log Acquisition 1–18  
Data Logging 1–13  
DC Interface Enclosure 1–8  
Direct Connection 2–32  
Disconnect Switches 1–12  
Transition 2–4  
Operation Features 1–2  
E
Automatic Sleep Test 2–5  
DC Overvoltage Detection 1–5  
Fixed Unity Power Factor Operation 1–2  
Peak Power Tracking 1–3  
Utility Voltage/Frequency Fault Automatic Reset 1–4  
Operational Safety Procedures 5–2  
Operational Values 1–18  
Operator Interface 2–6  
Automatic State Transitions 2–22  
Changing Write Parameter Values 2–16  
Commanding Goal State Changes 2–20  
Keypad Operation 2–6  
EMI output filter 1–2  
enclosures 1–6  
F
Fault Code Descriptions 4–4  
Fault Log Acquisition 1–18  
Fault Reporting and Logging 1–13  
Faults 2–2  
Faults and Fault Codes 4–2  
G
Manual State Transitions 2–22  
Setting the Date and Time 2–21  
General Troubleshooting 4–2  
Graphic Data Analysis 1–18  
grid-connected photovoltaic arrays 1–2  
GUI Help 2–37  
GUI Software  
Starting the Software Setup Program 2–26  
System Requirements 2–26  
P
Period Maintenance  
Monthly 5–6  
Six month intervals 5–7  
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Index  
Power Distribution Panel 1–7  
Power Electronics Matrix 1–7  
PV Ground Fault Detection 1–5  
R
Remote Monitor and Control Features 1–18  
Remote/LAN Connection 2–31  
Running the GUI 2–31  
S
Self-protection features 1–2  
Shutdown 2–24  
Specifications A–2  
Electrical A–3  
Environmental A–2  
Over Voltage, Under Voltage and Frequency Ranges  
A–3  
Startup 2–24  
System Operation 2–2  
T
Three-phase power conversion system 1–2  
Torque and Wire Gauge Specifications A–4  
Transformer Enclosure 1–8  
IX–2  
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Xantrex Technology Inc.  
1 800 670 0707 Tel toll free NA  
1 360 925 5097 Tel direct  
1 800 994 7828 Fax toll free NA  
1 360 925 5143 Fax direct  
[email protected]  
www.xantrex.com  
PC Printed in USA  
152607  
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