GE Power Supply LP 33 User Manual

GE Consumer & Industrial  
Power Protection  
Operating Manual  
Uninterruptible Power supply  
Digital Energy™  
LP 33 Series  
30 & 40 kVA  
208 VAC UL / Series 0  
Manufactured by:  
GE Zenith Controls  
General Electric Company  
2501 Pecan Street  
Bonham, Texas 75418  
T 903 640 7900  
T 903 640 7900  
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Dear Customer,  
We thank you for selecting our products and  
are pleased to count you amongst our very  
valued customers at GE.  
We trust that the use of the LP 33 Series  
Uninterruptible  
Power  
Supply  
system,  
developed and produced to the highest  
standards of quality, will give you complete  
satisfaction.  
Please carefully read the Installation Guide.  
It contains all the necessary information about  
the installation of the UPS.  
Thank you for choosing GE !  
START UP AND COMMISSIONING  
A GE Global Services Field Engineer must perform start-up and commissioning of the  
UPS. Please Contact G.E. Global Services at least two weeks prior to schedule start-up  
and commissioning at 1-800-637-1738, or by E-mail at [email protected]  
Manufactured by:  
Distributed by:  
Your service contact:  
g
GE Digital Energy  
General Electric Company  
CH – 6595 Riazzino (Locarno)  
Switzerland  
Modifications reserved  
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Preface  
Congratulations on your choice of a LP 33 Series Uninterruptible Power Supply (UPS).  
It will help eliminate load disturbances due to unexpected power problem.  
This Installation Guide describes how to prepare the installation site, and it provides  
weight and dimensions and procedures for moving, installing and connecting the UPS.  
While every care has been taken to ensure the completeness and accuracy of this  
manual, GE assumes no responsibility or liability for any losses or damages resulting from  
the use of the information contained in this document.  
WARNING!  
LP 33 Series / 30 & 40 kVA, is a product that needs to be installed by a licensed and  
knowledgeable contractor.  
We recommend that this manual be kept next to the UPS for future references.  
If any problems are encountered with the procedures contained in this manual, please  
contact your Service Center before you proceed.  
This document shall not be copied or reproduced without the permission of GE.  
Some of the information contained in this manual may be changed without notice to  
reflect technical improvements.  
Safety instructions  
Read the safety instructions contained on the following pages carefully before the  
installation of the UPS, options and battery system.  
Pay attention to the rectangular boxes included in the text:  
They contain important information and warning concerning electrical connections and  
personnel safety.  
Parallel version secured with RPA  
When included in the text, this symbol refers to operation needed  
only for parallel system.  
Modifications reserved  
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Table of contents  
Page  
1
2
SAFETY RULES.............................................................................................................................................6  
INTRODUCTION..........................................................................................................................................9  
2.1 GENERAL DESCRIPTION......................................................................................................................................................................9  
3
DESCRIPTION............................................................................................................................................10  
3.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION.................................................................................................... 10  
3.2 OPERATION MODES........................................................................................................................................................................... 11  
3.3 RPA PARALLEL SYSTEM.................................................................................................................................................................... 14  
3.4 UPS PARALLELED ON THE SAME BATTERY.............................................................................................................................. 15  
3.5 SERVICE AND TECHNICAL SUPPORT.......................................................................................................................................... 16  
3.6 RECYCLING AT THE END OF SERVICE LIFE .............................................................................................................................. 17  
4
5
LAYOUT......................................................................................................................................................18  
4.1 LAYOUT LP 33 SERIES / 30 & 40 KVA......................................................................................................................................... 18  
SYSTEM HANDLING..................................................................................................................................19  
5.1 CONTROL PANEL ................................................................................................................................................................................ 19  
5.2 COMMAND PUSH BUTTONS AND SWITCHES........................................................................................................................ 20  
6
LCD SCREEN..............................................................................................................................................21  
6.1 METERING SCREENS (METERING)................................................................................................................................................ 21  
6.2 EVENT SCREENS (ALARM)................................................................................................................................................................ 23  
6.2.1 Alarms list.................................................................................................................................................................................................... 23  
6.2.2 Messages list.............................................................................................................................................................................................. 26  
6.2.3 Event report LP 33 Series...................................................................................................................................................................... 29  
6.3 MENU SCREENS (MENU).................................................................................................................................................................. 30  
6.3.1 User parameters screen....................................................................................................................................................................... 31  
7
OPERATION...............................................................................................................................................35  
7.1 PROCEDURES FOR SINGLE LP 33 SERIES................................................................................................................................. 35  
7.1.1 Start-up of the LP 33 Series................................................................................................................................................................. 35  
7.1.2 UPS shutdown with load transfer on manual bypass (Q2) ................................................................................................... 37  
7.1.3 Start-up following the operation on manual bypass (Q2)..................................................................................................... 39  
7.1.4 Complete shutdown ............................................................................................................................................................................... 40  
7.1.5 Restore to normal operation after “total off” .............................................................................................................................. 41  
7.1.6 Restore to normal operation after “EPO – Emergency Power Off”.................................................................................... 42  
7.2 PROCEDURES FOR PARALLEL SYSTEM LP 33 SERIES ......................................................................................................... 43  
7.2.1 Parallel System start-up of the LP 33 Series................................................................................................................................ 43  
7.2.2 Parallel UPS shutdown with load transfer on manual bypass (Q2)................................................................................... 45  
7.2.3 Start-up following the operation on maintenance bypass (Q2)......................................................................................... 47  
7.2.4 Shutdown of a single unit in a parallel system .......................................................................................................................... 48  
7.2.5 Start-up an additional unit in a parallel system........................................................................................................................ 49  
7.2.6 Complete shutdown of a parallel system..................................................................................................................................... 50  
7.2.7 Restore to normal operation after “total off” .............................................................................................................................. 51  
7.2.8 Restore to normal operation after “EPO – Emergency Power Off”.................................................................................... 52  
8
9
OPTIONS....................................................................................................................................................53  
8.1 OPTIONS GENERAL VIEW................................................................................................................................................................ 53  
MAINTENANCE .........................................................................................................................................54  
9.1 GENERAL MAINTENANCE................................................................................................................................................................ 54  
9.2 COOLING FAN MAINTENANCE...................................................................................................................................................... 54  
9.3 BATTERY MAINTENANCE................................................................................................................................................................. 54  
9.4 SERVICE REQUIRED ........................................................................................................................................................................... 55  
10 NOTES........................................................................................................................................................56  
10.1 NOTES FORM........................................................................................................................................................................................ 56  
Modifications reserved  
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1 SAFETY RULES  
With this document, GE gives to the user all the necessary information about the correct use of the UPS.  
We recommend that this manual be kept next to the UPS for future references.  
If any problems are encountered with the procedures contained in this manual, please contact the  
nearest Service Center before you proceed.  
All UPS installation, maintenance and service work should be performed by qualified service personnel  
only.  
The KNOWLEDGE and the FULLY compliance of the safety instructions and the warning  
contained in this manual are  
THE ONLY CONDITION  
to avoid any dangerous situations during installation, operation, maintenance work, and  
to preserve the maximum reliability of the UPS system.  
NOTE !  
LP 33 Series / 30 & 40 kVA is a FCC Class A-UPS Product.  
While every care has been taken to ensure the completeness and accuracy  
of this manual, GE assumes no responsibility or liability for any losses or  
damages resulting from the use of the information contained in this  
document.  
GE  
Refuses any responsibility in case of non-observance,  
unauthorised alterations or improper use of the  
delivered UPS.  
Modifications reserved  
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SAVE THESE INSTRUCTIONS  
This manual contains important instructions for models LP 33 Series / 10 & 20 kVA that should  
be followed during installation and maintenance of the UPS and battery.  
GENERAL  
-
Move the UPS in an upright position in its original package to the final destination  
room.  
-
-
Check for sufficient floor and elevator loading capacity.  
Check the integrity of the UPS equipment carefully.  
If you notice visible damage, do not install or start the UPS. Contact the nearest Service  
Center immediately.  
- WARNING! RISK OF ELECTRICAL SHOCK: Do not remove covers; there are no user  
serviceable parts inside.  
- After switching off takes 5 minutes for the DC capacitors to discharge because a lethally  
high voltage remains at the terminals of the electrolytic capacitors.  
-
All maintenance and service work should be performed by qualified service personnel.  
The UPS contains its own energy source (battery).  
-
The field-wiring terminals may be electrically live, even when the UPS is disconnected  
from the utility.  
-
Dangerous voltages may be present during battery operation.  
The battery must be disconnected during maintenance or service work.  
-
-
This UPS contains potentially hazardous voltages.  
Be aware that the inverter can restart automatically after the utility voltage is restored.  
STORAGE  
-
-
Store the UPS in a dry location; storage temperature must be within -13°F (-25°C) to  
131°F (55°C).  
If the unit is stored for a period exceeding 3 months, the battery must be recharged  
periodically (time depending on storage temperature).  
BATTERY  
-
-
-
The battery-voltage is dangerous for person’s safety.  
When replacing the battery, use the same number, voltage (V) and capacity (Ah).  
Proper disposal or recycling of the battery is required.  
Refer to your local codes for disposal requirements.  
-
-
Never dispose of battery in a fire: They may explode.  
Do not open or mutilate battery: Their contents (electrolyte) may be extremely toxic.  
If exposed to electrolyte, wash immediately with plenty of water.  
-
-
Avoid charging in a sealed container.  
Never short circuit battery. When working with battery, remove watches, rings or other  
metal objects, and only use insulated tools.  
Modifications reserved  
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Safety symbols and warnings  
Safety warnings  
The text of this manual contains some warnings to avoid risk to the persons and to avoid damages to  
the UPS system and the supplied critical loads.  
The non-observance of the warnings reminding hazardous situations could result in human injury and  
equipment damages.  
Please pay attention to the meaning of the following warnings and symbols.  
Throughout this manual the following symbols are defined:  
WARNING, if instruction is not followed injury or serious equipment damage  
may occur!  
CAUTION, internal parts have dangerous voltage present.  
Risk of electric shock!  
PE (Earth) – GND (Ground)  
PROTECTIVE GROUNDING TERMINAL:  
A terminal which must be connected to earth ground prior to making any other  
connection to the equipment.  
A terminal to which or from which an alternating (sine wave) current or voltage  
may be applied or supplied.  
A terminal to which or from which a direct current or voltage may be applied or  
supplied.  
This symbol indicated the word “phase”.  
This symbol indicates the principal on/off switch in the on position.  
This symbol indicates the principal on/off switch in the off position.  
Modifications reserved  
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2
INTRODUCTION  
2.1 GENERAL DESCRIPTION  
The LP 33 Series Uninterruptible Power Supply (UPS) provides the energy supply for critical loads which  
need a reliable, continuous free from voltage disturbances and frequency fluctuations supply.  
In case the mains fails, or it exceeds the permitted tolerances, the energy to supply the load is furnished  
by the battery with a backup time dependent on its capacity, until the mains recovers.  
LP 33 Series is a truly VFI double conversion Uninterruptible Power Supply (UPS),  
equipped with automatic bypass, where the load is normally supplied by the inverter.  
LP 33 Series can be configured, if chosen, for the ECO Mode permitting the maximum  
energy saving.  
The main typical performances of the LP 33 Series system are the following:  
VFI (Voltage Frequency Independent) double conversion technology to provide an excellent  
quality power supply.  
Input power factor 0.8.  
Input current THD <10%.  
Automatic bypass and manual bypass to improve reliability and maintenance.  
Microprocessor controlled supervision.  
Dual AC inputs (optional).  
ECO Mode operation.  
Compact and agreeable design expressly conceived for “Office environment”.  
Low level acoustic sound, 50 dB(A) (10 kVA), 55 dB(A) (20 kVA) and 61 dB (A) (30 & 40 kVA) to avoid  
noise to the persons operating in the same environment.  
Multi-language LCD screen.  
Total battery management: SBM (Superior Battery Management)  
High battery capacity, 22 minutes (10 kVA), 9 minutes (20 kVA), 29 minutes (30 kVA) and 19  
minutes (40 kVA), with battery housed in the UPS cabinet.  
Wide rectifier input voltage tolerance: 152 ÷ 240 VAC (phase – phase).  
Wide rectifier input frequency tolerance: +/-10% (54 ÷ 66 for 60 Hz).  
RPA (Redundant Parallel Architecture) up to 4 units.  
GE Connectivity.  
Compliance with UL standard 1778.  
Modifications reserved  
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3
DESCRIPTION  
3.1 BLOCK DIAGRAM AND MAIN ELEMENTS DESCRIPTION  
Fig. 3.1-1 UPS block diagram  
The Uninterruptible Power Supply System LP 33 Series / 30 & 40 kVA can be divided into the following  
main elements:  
Electronics  
The UPS is designed with a microprocessor–controlled supervision and diagnostic system.  
Communication between user and UPS is achieved by the front panel consisting of an LCD screen,  
displaying the operation modes, the measurements and the events / alarms.  
Rectifier  
The rectifier converts the 3-phase mains voltage into a controlled and regulated DC-voltage, in order to  
supply power to the booster, and to charge the battery through the battery-charger.  
Inverter  
The inverter converts the DC voltage into a three-phase AC-voltage with constant amplitude and  
frequency, which is completely independent from the AC-input voltage.  
Automatic Bypass  
The automatic bypass consists of a static semiconductor-switch (SSR: Static Switch Relay), used to  
provide an uninterrupted transfer of the load from inverter to mains when operating in VFI Mode.  
If chosen the ECO Mode, the SSM transfer the load from mains to inverter in case the utility fails.  
Back-Feed Protection  
All LP 33 Series UPS’s are equipped with an automatic system for the protection against voltage back  
feeding towards Utility, through the Bypass (Applied Standard IEC 62040-1).  
This protection works automatically by opening contactor K6 (in series with the thyristors of the static  
switch) and eventually K7, and acts in case of internal defects of the system, or due to wrong  
manipulations on the maintenance bypass Q2.  
Manual Bypass  
The manual bypass consists of a pair of manual switches Q1 and Q2, which allow the isolation of the  
UPS from the load, while still supplying the load with power directly from the mains.  
Battery  
The battery, normally stored by the battery-charger, supplies the DC energy to inverter in the event of  
mains failure.  
Modifications reserved  
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3.2 OPERATION MODES  
This section describes the different possible operation modes of the UPS explaining the function of the  
main modules of the UPS.  
VFI (Voltage Frequency Independent) Mode operation  
Under normal conditions the load is  
permanently powered by the inverter with  
constant amplitude and frequency.  
The rectifier, powered by the mains, supplies the  
inverter and the battery-charger keeps the  
battery fully charged.  
Fig. 3.2-1 Energy flow in VFI Mode operation  
The inverter converts the DC voltage in a new AC sine wave voltage with constant amplitude and  
frequency independently from the input mains power.  
ECO Mode operation (Intelligent Energy Management)  
When the ECO Mode is selected, and the mains  
power is available, the load is normally powered  
through the automatic bypass.  
When the mains voltage is detected out of the  
prescribed tolerances, the load is automatically  
transferred to the inverter.  
When the mains recovers, the load returns to  
the automatic bypass after a variable time  
Fig. 3.2-2 Energy flow in ECO Mode operation  
defined by the control unit.  
The ECO Mode can be configured directly by the user for higher efficiency, considering the mains  
reliability and criticality of the load.  
The selection between the two operation modes “VFI Mode and ECO Mode”, or switching between  
operation modes at required time, can be done through the UPS control panel (see Section 6.3.1-5).  
In case of parallel system  
ECO Mode cannot be enabled for RPA Parallel System.  
Attention:  
A single unit equipped with a RPA - Parallel board, must be considered as parallel, thus  
disabling ECO Mode.  
Modifications reserved  
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Automatic bypass operation  
In VFI (Voltage Frequency Independent) operation  
mode, the load is permanently supplied by the  
inverter but, in case of trouble on the inverter, or  
when overload or short-circuit on the output  
occur, if the mains voltage do not exceed the  
admitted tolerances, the load is instantly  
transferred to the mains through the automatic  
bypass, taking advantage of the higher short  
circuit power.  
Fig. 3.2-3 Energy flow in automatic bypass operation  
When the inverter recovers, the load will be re-transferred automatically to the inverter.  
In case of parallel system  
Each unit has its own bypass.  
All the bypasses in the system work together, their control being managed in the same manner by  
all units.  
The units are continuously exchanging information before taking such decision.  
In case the inverter of one unit fails, its bypass remains operating.  
It is excluded only if the unit is separated from the common bus by opening its output switch Q1.  
Mains recovery operation  
As soon as the mains recovers, the rectifier starts  
up automatically supplying the inverter and the  
battery-charger recharges the battery.  
In case the inverter has been shut down following  
a complete discharge of the battery, when the  
mains recovers the system start up automatically.  
Fig. 3.2-4 Energy flow at mains recovery operation  
When the energy stored in the battery is sufficient to ensure a minimum time of operation with the  
actual load, in case of a future mains failure, the load will be retransferred to inverter (if selected VFI  
Mode).  
In case of parallel system  
When the AC input power recovers, the rectifiers will start up sequentially according to their  
number in the parallel system in order to avoid an initial inrush current.  
The inverters will start up automatically, but only when the battery has recharged enough for a  
minimum runtime with the present load.  
When enough inverters to supply the load have been restarted, the load will be transferred from the  
automatic bypass back to the inverter bus-bars.  
Modifications reserved  
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Manual bypass operation  
The manual bypass circuit consisting of Q1 and  
Q2 manual switches, permits the transfer of the  
load directly to the mains without interruption,  
leaving the UPS galvanically separated from the  
output load.  
This type of operation is normally used when the  
UPS system must be completely turned off for  
maintenance or reparation.  
Fig. 3.2-5 Energy flow in manual bypass operation  
Mains failure operation  
In the event of a mains power failure, the  
rectifier and the battery-charger turn OFF,  
while the inverter continues to supply the load  
without interruption using the energy stored in  
the battery.  
During the battery discharge, the LCD screen  
displays the remaining autonomy, based on the  
battery capacity and the applied load.  
Fig. 3.2-6 Energy flow during mains failure operation  
In the event of an extended mains failure, before the battery is fully discharged, the alarm “stop  
operation” warns the user that the UPS will start the shutdown procedures when the indicated time  
expired (normally 3 minutes).  
In case of parallel system  
With parallel system for power capacity:  
With the bypass mains power available as the warning “battery low” occurs on one unit, after  
timeout (selectable) the load is transferred to mains.  
With missing bypass mains power as the warning occurs on one unit, the system starts the  
timeout (selectable) of “Stop operation” and then the output load shuts down.  
With redundant parallel system:  
As the warning battery low occurs on one unit unnecessary to support the present load, after  
timeout (selectable) this unit shuts down and the load is shared between the other units.  
As the warning occurs on one unit necessary to support the present load, the system starts the  
timeout (selectable) of “stop operation” and then the output load shuts down.  
Modifications reserved  
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3.3 RPA PARALLEL SYSTEM  
The RPA (Redundant Parallel Architecture) allows to extend the unit to a parallel system with 2, 3, or 4  
units LP 33 Series connected on the same bus, which ensure the highest reliability rate and increase the  
power availability.  
Parallel system for power capacity  
Two or more units can be paralleled in order to  
achieve output power superior to the maximum  
power delivered by a single UPS unit.  
The maximum total load shared between the n  
parallel units can achieve the 100% of the  
installed nominal power system.  
UTILITY INPUT  
F1  
F2  
F3  
F4  
LPS33U_030-040_RPA system_GE_01  
LP 33 Series  
LP 33 Series  
LP 33 Series  
LP 33 Series  
1
2
3
4
RPA  
Board  
RPA  
Board  
RPA  
Board  
RPA  
Board  
In the event of one unit fails, the load will be  
suddenly transferred to the mains by the  
bypass.  
Parallel system for redundancy  
The parallel system can be defined redundant  
only in case the nominal power rating of n-1 units  
of n parallel units is sufficient to supply the  
required load power.  
LOAD  
Fig. 3.3-1 RPA system diagram  
The load in a parallel redundant system, is equally shared by n units connected on the output bars.  
Should one of the parallel units trip off-line, the remaining (n-1) units will share the load maintaining the  
applications protected by inverter until the normal situation restores.  
Load sharing between parallel units  
The control bus exchanging the data between the microprocessors of the paralleled units provide for a  
constant proportional load sharing in every load condition.  
Management and synchronization of the parallel system  
All the units are identical without master and slaves.  
One unit is arbitrarily selected as the reference (the first unit connected on power bus) being this unit the  
first synchronized with the mains voltage, and all the other units synchronize with the first one.  
In case the reference unit fails or it is excluded from the parallel power bus any other unit will take over  
the reference role.  
The AC input power source of all the bypasses must be the same for all the units of the parallel system  
excluding any phase shift between them.  
Control bus of the parallel system  
A high-speed serial bus, guarantees communication, synchronization and load sharing between the  
UPS modules.  
Each module controls it’s own function, while the Master (each unit can be Master) controls and  
commands the status of the system.  
NOTE !  
The parallel system exclude more rectifiers connected on common battery.  
No transformers, fuses or automatic circuit breakers should be inserted between the  
unit’s output and the load common bus bars.  
Modifications reserved  
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3.4 UPS PARALLELED ON THE SAME BATTERY  
NOTE !  
A parallel system with a Common Battery for two or more UPS, requires a particular  
installation and adequate setting of some parameters, (accessible only through  
password), and can therefore only be done by a qualified GE engineer.  
Usually each UPS Unit runs with its own Battery.  
In case of parallel units running with a Common Battery (max. 4 UPS - see Fig. 3.4-1), the sharing circuit  
between the individual UPS is integrated in the communication bus of the system in order to assure an  
equal sharing of the Rectifiers output currents.  
1 – Rectifier  
2 – Inverter  
3 – Automatic Bypass  
4 – Manual Bypass  
5 – Mains Power  
6 – Load Bus Bar  
7 – External Battery Fuse  
8 – Battery  
Fig. 3.4-1 Diagram RPA system with UPS on common battery  
Pay attention to the following recommendations:  
The units delivered for this functioning mode needs a special parameters setting, so they must be  
prepared in advance before the installation.  
The installation must be performed only with the UPS system completely shut down.  
The AC Rectifiers input power (5) must be the same, with clockwise phase rotation for each unit.  
Each Rectifier must be set for the same floating DC voltage and the same Battery current limitation.  
It is mandatory to install the fuses / MCB (7) on each line connecting the Rectifiers to the common  
Battery for maintenance / safety reasons (see Section 4.7.2).  
In case a unit must be powered down for maintenance, switch-OFF the concerned unit before open  
the DC fuses / MCB on the Battery line (7).  
If an emergency generator set supplies the UPS, and the free contact “Generator ON” is connected  
to the Customer Interface, connect a separate NO free contact on each parallel unit.  
Do not connect the temperature sensor for automatic battery floating voltage compensation.  
Do not enable the function Boost charge.  
Modifications reserved  
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3.5 SERVICE AND TECHNICAL SUPPORT  
Stamp of your Dealer or local responsible of the Technical Assistance  
(see page 3)  
For any request of technical support please  
contact the supplier who provided the system.  
Serial Nr.  
g
GE Digital Energy  
Series  
Product. Year  
Hz  
Output Power  
Output Freq.  
kVA at Pow. factor  
Hz  
lag.  
6595 RIAZZINO (CH)  
MADE IN SWITZERLAND  
Input Freq.  
Input Voltage  
Input Current  
VAC: 3W + N + PE  
Output Voltage  
Output Current  
VAC: 3W + N + PE  
Model  
A
A
The requested data permitting to  
identify your UPS are marked on the  
identification label fixed on the front of  
the cabinet, behind the lower front  
door.  
For fast and efficient Technical Support  
solutions, please mention the data  
marked on the identification label.  
O
N
O
N
OFF  
OFF  
Fig. 3.5-1 Identification label  
Modifications reserved  
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3.6 RECYCLING AT THE END OF SERVICE LIFE  
NOTE !  
This product has been designed to respect the environment, using materials  
and components respecting eco-design rules.  
It does not contain CFCs (Carbon Fluor Clorid) or HCFCs (Halogen Carbon  
Fluor Clorid).  
GE, in compliance with environment protection recommends to the  
User that the UPS equipment, at the end of its service life, must be  
recovered conforming to the local applicable regulations.  
WARNING !  
Leads contained in the batteries is a dangerous substance for the  
environment, therefore it must be correctly recycled by specialised  
companies!  
Modifications reserved  
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4 LAYOUT  
4.1 LAYOUT LP 33 Series / 30 & 40 kVA  
Fig. 4.1-3 Control panel  
Fig. 4.1-1 General view  
Fig. 4.1-4 Q1 & Q2 switches  
SNMP  
CI  
BC Battery cabinet  
BC  
RC  
RS232  
CI Customer Interface Board (optional)  
F5-6-7 Battery fuses  
ON  
ON  
OFF  
OFF  
Q1 UPS output switch  
Q2 Manual bypass switch  
RC Relay card  
SNMP Advanced SNMP Card (optional)  
RS232 Serial port RS232  
F5-6-7  
Q2 Q1  
Fig. 4.1-2 General view with open door  
Modifications reserved  
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5
SYSTEM HANDLING  
5.1 CONTROL PANEL  
Fig. 5.1-1 Control panel  
LCD screen  
Shows the UPS system data, events messages and UPS setting.  
The data is displayed on 4 rows, 20 characters each, allowing the operator to select  
between 7 languages: English, German, French, Spanish, Italian, Finnish or Polish.  
If there is no keypad activity during 1 minute the LCD screen will return to default  
screen.  
Metering  
Alarm  
Shows electric parameters, operating statistics and some information screens (see  
Section 6.1).  
Shows in chronological order, all the events occurred (alarms, messages,  
commands, handling, etc.) and resets general alarm / buzzer (see Section 6.2).  
Menu  
Allows the user to adapt certain features of the UPS to his needs, to reset the  
command total off, to test the LEDs panel, and to command the inverter ON/OFF (see  
Section 6.3).  
+
Scroll to following screen.  
Entering in PARAMETER MENU/USER, allows to select the horizontal editable  
position.  
-
Entering in Alarm and Metering, scroll to previous screen.  
Entering in menu allows to select the row including the needed command.  
Enter  
Confirms the selected command.  
Entering in PARAMETER MENU/USER allows the user to change the parameters.  
LED Alarm  
(red)  
It warns about the imminent inverter stop and the consequent load shutdown as  
result of:  
The battery is fully discharged and the load cannot be transferred on mains  
(default parameter = 3 min.).  
Overtemperature (default = 3 min.) or overload condition (125%-10 min, 150%-1  
min.) and the load cannot be transferred on mains.  
LED Warning  
(yellow)  
When blinking, it means the UPS is in alert condition with the buzzer sounding.  
The yellow LED will remain lit after pressing the key Alarm.  
It remains lit also when the output switch Q1 is open or battery disconnected.  
LED Operation  
(green)  
When lit, it means the UPS is correctly operating and the load is powered by the  
inverter. When blinking, it means SERVICE REQUIRED  
Modifications reserved  
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5.2 COMMAND PUSH BUTTONS AND SWITCHES  
total off  
Press simultaneously the keys Alarmand -on the  
panel.  
This will cause the opening of all contactors (K4, K6  
and K7), shutdown of booster, Inverter, battery-  
charger and SSM.  
In a parallel system pressing total off  
on one unit all the units will shut  
down.  
NOTE !  
Using the command total off, the load will  
be immediately powered down.  
Fig. 6.2-1 Command total off  
To restart the unit, command total off must be  
restored entering the screen  
LAMP TEST  
RESET TOTAL OFF  
*
MENU/RESET TOTAL OFF  
Q1 - UPS output switch  
Q2 - Manual bypass switch  
NOTE !  
Do not switch ON Q1 and Q2 with  
Inverter ON.  
Fig. 6.2-2 Q1 & Q2 switches  
NOTE !  
Mains failure of long duration or low Battery voltage will cause the automatic  
shutdown of the UPS, thus preventing damage to the Battery.  
Modifications reserved  
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6
LCD SCREEN  
Shows the UPS system data, events messages and UPS setting.  
The data is displayed on 4 rows, 20 characters each, allowing the operator to select between 7  
languages: English, German, French, Spanish, Italian, Finnish and Polish.  
If there is no keypad activity during 1 minute the LCD screen will return to default screen.  
6.1 METERING SCREENS (Metering)  
This menu allows, when the keypad Metering is pressed, to show on the LCD panel a series of screens  
containing metering information about AC and DC parameters.  
1. UPS family, nominal rating and for RPA: P + No. UPS.  
LP 33  
40kVA P1  
APPLICATION ON UPS  
2. Load status: application on UPS, on utility, supply off, manual  
= 70%  
bypass (appl. on manual dev.) and ECO Mode.  
SERVICE REQUIRED  
3. The load amount as a percentage of the nominal load (referred  
to the most loaded phase).  
4. The signalling, combined with the green LED Operation blinking, is done only in case the respective  
parameter (protected by password) has been enabled. See Section 8.4.  
1. Booster DC voltage + pole (Udcp) and – pole (Udcn).  
Udcp=215V Udcn=215V  
Ubp=164V Ubn=164V O  
2. Battery DC voltage + pole (Ubp), – pole (Ubn) and the status  
SBM (Superior Battery Management).  
Charge Level  
Autonomy  
= 100%  
15min  
=
The functionality of SBM can help to reduce the Battery  
recharging time, and improve the lifetime of the Battery.  
Beside the indication of the Battery voltage on the display, a letter shows, according to the table  
below, the operational status of SBM:  
Sigle  
Status of charger  
Charter voltage  
Description  
O
T
F
OFF  
ON  
ON  
ON  
ON  
ON  
0 VDC  
Battery open circuit voltage  
Boost charge with new Battery  
Battery charged  
Boost (176 VDC)  
Floating (164 VDC)  
Floating (164 VDC)  
Boost (176 VDC)  
Boost (179 VDC)  
L
Normal charge  
B
E
Boost charge  
Battery equalization  
Access to the Parameters for setting the SBM mode is password protected.  
Please call your Service Center.  
3. Battery charge level.  
4. Estimated battery backup time with actual load.  
Modifications reserved  
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1. Mains input voltage information screen.  
2. Mains input frequency.  
MAINS  
f=60.0Hz  
3. Mains line voltage L1 (A) and L2 (B)phases.  
4. Mains line voltage L3 (C) phase.  
U1=120V U2=119V  
U3=121V  
1. Rectifier input voltage information screen.  
2. Mains input frequency.  
RECTIFIER  
f=60.0Hz  
3. Input line voltage L1 (A) and L2 (B) phases.  
4. Input line voltage L3 (C) phase.  
U1=120V U2=119V  
U3=121V  
1. Inverter voltage information screen.  
INVERTER:  
U2=120V  
Frequency  
U1=120V  
U3=120V  
= 60.0Hz  
2. Output inverter line voltage L1 (A), L2 (B) and L3 (C) phases  
3. Output frequency.  
Synchronized  
4. Synchronization status inverter with respect to mains.  
1. Load on output phases information screen.  
LOAD ON PHASE  
2. Voltage, current and load percentage phase L1 (A).  
3. Voltage, current and load percentage phase L2 (B).  
4. Voltage, current and load percentage phase L3 (C).  
U1=120V I1=56A 50%  
U2=120V I2=50A 45%  
U3=120V I3=61A 55%  
1. Screen informing about the battery and time of operation.  
2. Battery temperature.  
MISCELLANEOUS  
Battery Temp. = +25°C  
UPS Oper Time= 450h  
INV Oper Time= 430h  
3. Operating time (CPU powered) for the UPS (hours).  
4. Operating time with inverter supplying the load (hours).  
1. Screen informing about the quality of the input power.  
2. The quantity of bypass mains out of tolerance faults.  
3. The quantity of rectifier mains out of tolerance faults.  
4. The total number of detected output overloads.  
MAINS FAULTS STAT.  
Minor  
=
=
=
100  
150  
30  
Major  
Overloads  
1. Screen containing the data identifying the unit.  
2. UPS family, nominal rating and for RPA: P + no. UPS.  
3. The software version implemented on the control board.  
4. The serial number of the unit.  
IDENTIFICATION  
LP 33 40kVA P1  
SW Version:  
x.x  
S/N: Q0040-0105-0001  
Screen containing the statistic evaluation in % (100= good; 0= bad)  
of the utility, for the ECO Mode operation.  
ECO Mode RATE 100%  
NR FAST TRANSIENT  
<2ms >2ms >5ms >10ms  
4. The number of fast transients occurred on the bypass utility on  
the last seven days.  
25  
10  
7
3
Modifications reserved  
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6.2 EVENT SCREENS (Alarm)  
Each of the following listed alarms or messages can be displayed on the LCD screen or transmitted to a  
PC through the serial port RS232 or the SNMP card (optional).  
Entering the Alarm mode, the LCD screen displays a sequence of screens corresponding to the last 256  
alarms & events, each screen indicating:  
1. The exact date and time when the event occurred.  
01.01.2005  
12:15:45  
NR=255 Status=A588  
4580: INVERTER AND  
MAINS SYNCHRONIZED  
2. The number (255 being the most recent) and status code.  
3. The software version implemented on control board and  
explicit text description of the event.  
6.2.1 Alarms list  
Are defined alarms:  
all the events which activate the LED Warning (yellow) and the buzzer in order  
to alert the user about an abnormal situation.  
Code  
Alarm  
Meaning  
SETUP VALUES  
Parameters are lost and have been replaced with default  
values.  
4000  
4001  
4004  
LOST  
Voltage supply +/-15 VDC has been detected out of tolerance  
on the P1 – Control board or the programmable circuits are  
defective.  
REGULATION BOARD  
FAILURE  
UPS  
FAILURE  
The master unit detected the slave unit missing on the  
communication bus even though switch Q1 is still closed.  
The trip indicator mounted on rectifier input fuses indicates a  
blown fuse.  
The rectifier is turned Off (K4 open) and the load will be supplied  
by the battery.  
RECTIFIER FUSES  
FAILURE  
4100  
K4 CLOSING  
FAILURE  
K4 not closed despite a closing command being done.  
The rectifier is switched OFF.  
4102  
4103  
4110  
K4 OPENING  
FAILURE  
K4 not open despite an opening command being done.  
The rectifier is switched OFF.  
RECTIFIER MAINS  
OUT OF TOLERANCE  
Rectifier input mains has been detected out of tolerance  
(voltage, frequency or phase).  
The battery has been discharged and reached “stop operation”  
time-out (default 3 minutes), the inverter will be shut down.  
It restarts automatically only when the battery has recovered  
energy to ensure min. a “stop operation” time to the actual  
load.  
LOW BATTERY  
VOLTAGE  
4115  
4116  
Dangerous high UDC-Voltage.  
Causes Inverter shutdown. Inverter restarts automatically after  
return to normal floating voltage.  
HIGH BATTERY  
VOLTAGE  
Modifications reserved  
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Code  
4118  
Alarm  
Meaning  
During battery test the DC voltage falls under the critical  
level.  
If the boost voltage has not been reached within 24 hours,  
then the charge voltage returns to floating voltage.  
Battery test is stopped.  
BATTERY  
FAULT  
Rectifier and inverter are OFF.  
TURN ON RECT.  
OR SHUTDOWN UPS  
The DC power supply is discharging the battery slowly.  
Rectifier must be restarted or battery must be disconnected  
in order to avoid damages.  
4130  
4140  
Rectifier voltage hasn’t reached the set value.  
Probably fault on regulation loop.  
The DC capacitors are not equally charged (more of 50 VDC  
of difference).  
RECTIFIER  
CONTROL FAILURE  
The rectifier is switched OFF.  
Inverter output fuses blown.  
Signaled by electronic detector.  
Inverter can be started manually after replacement of fuses.  
INVERTER  
FUSES FAILURE  
4301  
4304  
4305  
4312  
K7 not closed despite a closing command being done.  
Signaled by auxiliary contact.  
Load will be supplied by mains.  
K7 CLOSING  
FAILURE  
K7 not open despite an opening command being done.  
Signaled by auxiliary contact.  
Load will be supplied by mains.  
K7 OPENING  
FAILURE  
Inverter output voltage is out of the tolerances defined in  
respective parameter (±10%).  
Inverter is switched OFF.  
INV. VOLTAGE  
OUT OF TOLERANCE  
Detection of inverter bridge (Is) current limitation cause  
inverter OFF and automatic restart (message 320).  
After 3 times inverter switches OFF for persistent Is max  
detection in time.  
ISMAX  
DETECTION  
4320  
Inverter switch OFF, and it can be restarted manually.  
INVERTER  
CONTROL FAILURE  
The slave oscillator is not synchronized with the master, thus  
causing the shutdown of it’s inverter.  
4340  
4347  
4402  
4404  
4405  
4410  
Auto calibration of the Inverters free-run frequency was not  
possible.  
The oscillator frequency of this unit is out of tolerance.  
OSCILLATOR  
FAILURE  
RECTIFIER  
CANNOT BE TURNED ON  
The rectifier cannot be turned on because the DC link  
voltage has not reached the requested value.  
K6 not closed despite a closing command being done.  
Signaled by auxiliary contact.  
The load cannot be supplied by electronic bypass.  
K6 CLOSING  
FAILURE  
K6 OPENING  
FAILURE  
K6 not open despite an opening command being done.  
Signaled by auxiliary contact.  
The mains bypass voltage is out of the tolerances (±10%).  
K6 opens, synchronization with mains is inhibited and  
transfer to mains is blocked.  
BYPASS MAINS  
OUT OF TOLERANCE  
Modifications reserved  
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Code  
4520  
Alarm  
Meaning  
The load supplied by utility is over 100%.  
The load remains blocked on utility as long as alarm  
overload is active.  
NO INVERTER  
POWER  
Load is locked on mains because 3 transfers on mains have  
been detected in a short time (default 30 seconds).  
Transfer will be free again after a time defined by respective  
parameter (default 30 seconds).  
LOAD LOCKED  
ON MAINS  
4530  
4531  
4563  
LOAD ON MAINS  
BY ERROR DETECTOR  
Load is transferred to mains because the error detector  
detected a disturbance on the output voltage.  
Alarm after detection of an Emergency Off from an external  
safety device connected on Customer Interface.  
Consequently K4, K6 and K7 open and shut down inverter,  
booster and rectifier.  
EMERGENCY OFF  
ACTIVATED  
The UPS-System is in an overload condition >125% on  
inverter, or >150% on mains.  
A sequence of “stop operation” starts.  
Time out depending on load quantity.  
4570  
4571  
OVERLOAD  
With mains bypass supply available and load >115%, the  
load is transferred on mains.  
Load will be transferred again automatically on inverter  
OVERLOAD:  
LOAD ON MAINS  
when load will be <100%.  
INVERTER AND  
MAINS NOT SYNCH.  
The voltages of mains and inverter are not synchronized,  
which causes the opening of K6.  
4581  
4697  
The battery temperature exceeds the value inserted in  
parameter.  
Disabled with parameter (service only).  
BATTERY  
OVERTEMPERATURE  
In case of utility failure, with the actual load, the autonomy  
time would result below “stop operation” time (default 3  
minutes).  
Battery voltage is at the lowest limit.  
Shutdown of inverter until the battery voltage reaches the  
value in respective parameter.  
BATTERY POWER  
INSUFFICIENT  
4698  
4700  
DC LOW  
The load is locked on Inverter following 3 load transfers  
within 30 seconds.  
After time out of the value in respective parameter (default  
LOAD LOCKED  
ON INVERTER  
4900  
4955  
30 seconds), bypass will be free.  
An overtemperature condition has been detected on  
inverter.  
Elapsed “stop operation” time, inverter shutdown.  
With mains available, load is transferred on mains.  
OVERTEMPERATURE  
LOAD OFF DUE TO  
EXTENDED OVERLOAD  
Load Off after time-out of “stop operation” for overload on  
inverter or bypass (time depending on the % of overload).  
4998  
4999  
Load Off after time-out of “stop operation” with missing  
mains due to battery low voltage or overtemperature  
condition.  
LOAD OFF DUE TO  
UBATT OR TEMP.  
Modifications reserved  
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6.2.2 Messages list  
Are defined messages:  
all the recorded events which are referred to the operation status coherent  
with the normal situation of the UPS.  
Code  
4111  
Message  
Meaning  
RECTIFIER  
Rectifier input mains is again within the admitted tolerance  
(voltage, frequency and phase).  
MAINS OK  
The UPS is in Load OFF status, resulting in Battery supply for the  
power supply.  
Should the Battery voltage decrease to a value below of the one  
set in a parameter, then power supply will shutdown to avoid  
damage to the Battery  
UPS SHUTDOWN  
(LOW BATT VOLTAGE)  
4114  
Start of manual or automatic battery test.  
Rectifier output voltage is decreased to the value defined by  
respective parameter.  
BATTERY TEST  
STARTED  
4119  
4120  
End battery test.  
End of manual or automatic battery test.  
Rectifier output voltage is restored to floating voltage.  
BATTERY TEST  
STOPPED  
ISMAX DETECTION  
BOOSTER  
RECTIFIER  
ON  
Detection of persistent booster (Is) current limitation.  
Rectifier received the command to switch ON.  
4141  
4161  
4162  
4163  
RECTIFIER  
OFF  
GENERATOR  
ON  
Rectifier received the command to switch OFF for:  
input mains out of tolerance / EPO / UDC max.  
Customer Interface (X1 / 11, 22) received a Gen set ON signaling.  
Operating mode dependent on setting of respective parameters.  
Customer Interface (X1 / 11, 22) received a Gen set OFF  
GENERATOR  
OFF  
signaling.  
4164  
Function bypass enabled dependent on setting of respective  
parameter.  
Inverter cannot be switched on because one of the following  
conditions are still present:  
Overtemperature;  
Low battery voltage;  
Inverter fuses;  
Overload;  
INVERTER  
CANNOT BE  
TURNED ON  
4302  
K7 opening failure;  
High battery voltage;  
DC low;  
EPO (Emergency Power Off).  
INVERTER  
CANNOT BE  
TURNED OFF  
Inverter cannot be switched OFF, because the load cannot be  
transferred on mains (voltage out of tolerance, not  
synchronizing, bypass blocked).  
4303  
4361  
The command to start the inverter has been activated on the  
control panel.  
INVERTER  
ON  
Modifications reserved  
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Code  
Message  
Meaning  
INVERTER  
OFF  
The command to switch OFF the inverter has been done by the  
control panel or automatically for alarm detection.  
4362  
4411  
4500  
4521  
4534  
4535  
BYPASS MAINS  
OK  
Bypass input mains is again within the admitted tolerance  
(voltage, frequency and phase).  
COMMAND  
LOAD OFF  
Disconnection of the load by opening K4, K6 and K7 for:  
EPO / Total Off / Overload / Stop operation.  
NO BYPASS  
POWER  
With the load supplied by electronic bypass, a mains failure or  
K6 opening occurred.  
MULTIPLE LOAD  
TRANSFER  
2 transfers inverter-mains have been detected in a short time,  
defined by respective parameter (default 30 seconds).  
BYPASS  
LOCKED  
Transfer on mains not enabled due to settings of respective  
parameters. Contactor K6 is open.  
Settings of respective parameters enable bypass transfer on  
mains.  
Contactor K6 can be closed.  
BYPASS  
FREE  
4536  
TOTAL  
OFF  
Push-button Total Off behind the front door has been pressed,  
with the output circuit breaker Q1 closed.  
4561  
4562  
4564  
4567  
4568  
4572  
4580  
DETOUR  
ON  
The auxiliary contact indicates that manual bypass Q2 has  
been closed.  
DETOUR  
OFF  
The auxiliary contact indicates that manual bypass Q2 has  
been opened.  
COMMAND  
LOAD ON MAINS  
The control unit received a command to transfer the load on  
mains.  
COMMAND  
LOAD ON INVERTER  
The control unit received a command to transfer the load on  
inverter.  
NO MORE  
OVERLOAD  
End of the overload condition previously detected with alarm  
4570.  
INVERTER AND  
MAINS SYNCHRONIZED  
The voltages of inverter and mains bypass are synchronized.  
Command not to synchronize with mains has been done for:  
mains bypass out of tolerance (4410) or setting respective  
parameters.  
COMMAND NOT TO  
SYNCHRONIZE  
4582  
4583  
Command to synchronize with mains has been done for:  
mains BP OK (4410) or setting respective parameters.  
COMMAND TO  
SYNCHRONIZE  
The ECO Mode function has been disabled or the programmed  
time is expired.  
The UPS returns to VFI Mode supplying the load normally by  
COMMAND  
UPS ON  
4600  
4601  
inverter.  
The function ECO Mode is enabled, and according to the time  
program the UPS will run in ECO Mode, supplying the load  
normally by mains.  
COMMAND UPS  
STAND BY  
Modifications reserved  
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Code  
Message  
Meaning  
Q1  
OPEN  
The auxiliary contact indicates that the output switch Q1 has  
been opened.  
4602  
4603  
Q1  
CLOSED  
The auxiliary contact indicates that the output switch Q1 has  
been closed.  
Not possible to start battery test (it is postponed) for:  
No mains rectifier or bypass;  
Battery not fully charged;  
BATTERY TEST  
IMPOSSIBLE  
4699  
4763  
Load is below 10% or above 80%.  
Inverter can be started or shutdown by remote control.  
Commands source can be chosen depending on the value of  
respective parameter (password required):  
0 = Only local panel.  
REMOTE CONTROL  
ON  
1 = Only serial port on CI (TLC).  
2 = Both.  
Inverter can be started or shutdown by remote control.  
Commands source can be chosen depending on the value of  
respective parameter (password required):  
0 = Only local panel.  
REMOTE CONTROL  
OFF  
4764  
1 = Only serial port on CI (TLC).  
2 = Both.  
Modifications reserved  
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6.2.3 Event report LP 33 Series  
In case of failure or malfunction, before calling the nearest Service Centre please note the most  
important identification data of your UPS and the most recent events displayed.  
In order to make the diagnosis easier for our Diagnostic Centre we suggest you make a copy of this  
page, fill it in with the requested data, and send it by fax.  
LP 33 Series  
LP 33 Series / ....…...... kVA  
User:  
.........................……………………………........…………...……………....…..  
.........................……………………………........…………...……………....…..  
.........................……………………………........…………...……………....…..  
.........................……………………………........…………...……………....…..  
UPS No.:  
Responsible:  
Date:  
Series:  
…….....  
.……...... - .….…..... - ...….......  
........................……………………………………..…  
Signature:  
…... / .….. / …...  
....……....……..…  
Description of repair action taken:  
Event No.  
Code  
Status  
Date  
Hour  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
255  
254  
253  
252  
251  
250  
249  
248  
247  
246  
245  
244  
243  
242  
241  
240  
239  
238  
237  
236  
235  
234  
233  
232  
231  
230  
Actual situation:  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
Remarks:  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
..........................……………………………........…………………..........................………...................  
Modifications reserved  
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6.3 MENU SCREENS (Menu)  
Pressing the menu keypad a series of screens will be displayed, permitting the user to set some  
functions of the UPS, to restore the command total off, to perform the LEDs TEST, and to switch the  
inverter ON/OFF.  
1. UPS family, nominal rating and for RPA: P + No. UPS.  
LP 33  
UPS ON  
40kVA P1  
2. The operating mode of the UPS (UPS ON/OFF).  
1. Screen inverter command.  
2. Inverter ON.  
COMMAND MENU  
INVERTER ON  
*
3. Inverter OFF.  
INVERTER OFF  
(The visualization of *, indicates the Inverter status).  
1. Signaling LEDs test and buzzer test.  
LAMP TEST  
2. Restore the output supply following the command total off  
(the asterisk * beside the text means that the command total  
off has been activated with Q1 closed).  
RESET TOTAL OFF  
*
1. Screen parameters set-up for user and service.  
PARAMETER MENU  
3. Level 1: this first level not protected by password allows  
the user to modify some parameters of the UPS  
(see Section 6.3.1).  
LEVEL 1: USER  
LEVEL 2: SERVICE  
4. Level 2: access protected by password reserved for service  
engineers.  
1. Screen indicating the presence of alarm condition and the  
consequent operation mode.  
ALARMS  
UPS FAILURE  
CALL SERVICE  
2. UPS status: UPS shutdown due to UPS FAILURE (fuse blown) or  
abnormal conditions for UPS (OVERTEMPERATURE or MAINS  
FAILURE).  
3. Action needed following the alarm condition CALL SERVICE or  
output statement which can be APPLIC.  
ON UTILITY if the output is powered by mains or  
APPLIC. PROTECTED when the load is normally powered by  
the inverter.  
Modifications reserved  
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6.3.1 User parameters screen  
This screen allows the user to modify some parameters permitting to adapt some functions of the UPS  
to his/her needs, described as follows.  
This screen can be accessed by entering MENU/PARAMETER MENU/LEVEL 1: USER and confirming with  
the key Enter.  
PARAMETER MENU  
LEVEL 1: USER  
LEVEL 2: SERVICE  
In PARAMETER MENU the buttons + / - / Enter perform the following functions:  
+
This key allows to scroll forward to the next screen and, once the key Enter has been pressed,  
to move the horizontal selection to the next editable position.  
-
This key allows to move the selection to the next parameter and, once the key Enter has been  
pressed, to change the value of the selected character by the underscore cursor.  
Enter  
Start the editing for the currently selected parameter.  
1. Date and time set-up  
1. Date and time setup.  
2. D = Day M = Month  
DATE AND TIME  
Y = Year.  
D M  
Y
Date:  
Hour:  
01.01.2005  
12:15:45  
3. Date set-up: the set value is thoroughly checked to be a  
correct format “dd.mm.yyyy”.  
4. Time set-up: the set value is thoroughly checked to be a  
correct format “hh.mm.ss”.  
The time is specified in 24 hour format.  
2. Modem protocol set-up  
1. Modem protocol set-up.  
PROTOCOL SETUP  
Modem enabled = N  
Init=BEQV1X3&D0S0=2  
2. Y: enables or N: disables the modem call.  
3. Init: this parameter presents the modem initialization string.  
It can be 39 characters long and considers that a blank  
character terminates the string.  
Alarm=N  
Delay=30s  
If no blank character is found then all 39 characters are  
used  
4. Alarm: Y/N controls the automatic events signaling through modem.  
If this parameter is set to Y (yes) the UPS itself will call the remote location when a new  
event occurs.  
Delay: This parameter controls the delay between the occurrence of a new event and the  
modem dialing.  
It is useful because since the events typically do not occur isolated but in certain  
sequences, you can eliminate the need for multiple dial-outs for such a sequence of  
events.  
Modifications reserved  
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3. Telephone numbers set-up  
Tel1: This parameter specifies a first tel. number to be used for  
modem dial-out.  
Tel1:  
Tel1 enabled:  
Tel2:  
N
N
The telephone number has a maximum of 39 characters  
and cannot contain intermediate blank.  
If the desired number is shorter than 39 characters, finish  
the string with blanks.  
Tel2 enabled:  
Tel1 enabled: this parameter Y/N specifies if the first telephone number will be used for dial-out.  
Tel2:  
it records the second dial-out number.  
Tel2 enabled: this parameter Y/N specifies if the second telephone number will be used for dial-out.  
Tel3:  
it records the third dial-out number.  
Tel3 enabled: this parameter Y/N specifies if the third telephone number will be used for dial-out.  
Tel4:  
it records the fourth dial-out number.  
Tel4 enabled: this parameter Y/N specifies if the fourth telephone number will be used for dial-out.  
4. LCD Display  
1. LCD display screen.  
LCD Display  
2. UPS name: the user can choice the name of the UPS model  
UPS NAME: LP 33  
showed on the main page (11 digits).  
Language = ENGLISH  
4. Language: his parameter allows the choice of language  
used to display the information.  
Valid choices are English, German, French,  
Spanish, Italian, Finnish and Polish.  
5. Operation mode selection (VFI Mode or ECO Mode)  
NOTE !  
ECO Mode  
Y
The ECO Mode can only be activated on single units.  
d1 d2 d3 d4 d5 d6 d7  
HOURS SELECTED  
24 24 12 12 12 12 12  
1. ECO Mode  
This parameter (values Y / N) enables or disables the operation  
in ECO Mode.  
If the value is Y and the current time is in the interval for the current day, the ECO Mode is active.  
The activation / disactivation of ECO Mode is indicated each time in the event list.  
In order to check the inverter function, at least 1 minute of VFI Mode must be programmed during the  
week (the Y / N parameter is automatically disabled if this condition is not satisfied).  
In case this minimum time in VFI Mode is not respected, the ECO Mode will be disabled.  
If the value is N, the UPS is normally operating in VFI / double conversion mode at all times.  
Modifications reserved  
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2. d1 ÷ d7: Enabling time in function of weekdays.  
For the weekdays from d1 to d7 (Saturday to Friday) the edit mode (edit day) allows to define time  
intervals when the UPS is operating in ECO Mode.  
The hour is given in 24-hour format.  
These intervals are defined by:  
ECO Mode START:  
the hour of the day after which the ECO Mode is enabled.  
The ECO Mode is enabled until the following ECO STOP time is reached (the  
ECO STOP time of the same day if this is later than the ECO START time, the  
ECO STOP time of the following day otherwise).  
ECO Mode STOP:  
the hour of the day before which the ECO Mode is enabled.  
The ECO Mode is enabled starting from the preceding ECO START time (the ECO START time of the  
same day if this is earlier than the ECO STOP time, the ECO START time of the previous day  
otherwise).  
Identical times for ECO START and ECO STOP maintain the existing mode only in case the previous  
command was ECO START and the following command will be ECO STOP.  
3. HOURS SELECTED:  
The number of ECO Mode hours per weekday (from d1 - Saturday to d7 -  
Friday) is displayed in the operation mode parameter window (ceiling  
value).  
To better understand the ECO Mode programming, some typical examples are shown:  
Example 1:  
For continuous ECO Mode set the ECO START times to 00:00 and the ECO STOP times to  
23:59 for all weekdays, but almost 1 day must have 1 minute of VFI programmation: i.e  
d2 - Sunday 00:00 to 23:58).  
Weekday  
d1 - Saturday  
00:00  
d2 - Sunday  
00:00  
d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday  
d7 - Friday  
00:00  
ECO START  
ECO STOP  
00:00  
23:59  
00:00  
23:59  
00:00  
23:59  
00:00  
23:59  
23:59  
23:58  
23:59  
Example 2:  
ECO Mode STOP before ECO Mode START.  
ECO START 18:00, ECO STOP 06:00 for weekday d4 - Tuesday.  
Means that on d4 - Tuesday the ECO Mode is active between 00:00 and 06:00 and  
between 18:00 and 23:59.  
Weekday  
d1 - Saturday  
00:00  
d2 - Sunday  
00:00  
d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday  
d7 - Friday  
00:00  
ECO START  
ECO STOP  
00:00  
23:59  
18:00  
06:00  
00:00  
23:59  
00:00  
23:59  
23:59  
23:59  
23:59  
Example 3:  
ECO Mode during the night and week-end.  
If the ECO Mode must be enabled all nights (d3 - Monday ÷ d7 - Friday) between 18:00 in  
the evening and 06:00 of the following morning and during all Saturday (d1) and Sunday  
(d2), the corresponding parameters are:  
Weekday  
d1 - Saturday  
00:00  
d2 - Sunday  
00:00  
d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday  
d7 - Friday  
18:00  
ECO START  
ECO STOP  
18:00  
06:00  
18:00  
06:00  
18:00  
06:00  
18:00  
06:00  
23:59  
23:59  
06:00  
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Example 4:  
If the ECO Mode must be enabled on Monday (d3) and Tuesday (d4) between 18:00 in the  
evening and 06:00 of the following morning, on Friday (d7) between 12:00 and 13:00,  
during all Saturday (d1) and on Sunday (d2) until 20:00, the corresponding parameters  
are.  
Weekday  
d1 - Saturday  
00:00  
d2 - Sunday  
00:00  
d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday  
d7 - Friday  
12:00  
ECO START  
ECO STOP  
18:00  
23:59  
18:00  
06:00  
00:00  
06:00  
00:00  
00:00  
23:59  
20:00  
13:00  
ECO START  
ECO STOP  
In dark colour are displayed the times with ECO Mode operation.  
The arrows indicate the conditions given by the ECO START and ECO STOP times introduced with the  
parameters.  
Note that on day d6 - Tuesday the interval has length 0 (zero), therefore the ECO Mode is not enabled on  
this day.  
Example 5:  
An equivalent set of parameters for Example 4 is.  
Weekday  
d1 - Saturday  
00:00  
d2 - Sunday  
00:00  
d3 - Monday d4 - Tuesday d5 - Wednesday d6 - Thursday  
d7 - Friday  
12:00  
ECO START  
ECO STOP  
18:00  
18:00  
18:00  
06:00  
06:00  
06:00  
09:00  
09:00  
23:59  
20:00  
13:00  
ECO START  
ECO STOP  
The ECO Mode is active from 18:00 of weekday d3 - Monday until 06:00 of weekday d4 - Tuesday (as  
indicated by the ECO STOP time of weekday d4 - Tuesday).  
The ECO STOP time of weekday d3 - Monday has no effect as it is followed by the ECO STOP time of  
weekday d4 - Tuesday.  
It can be, without change of meaning, any time between 18:00 and 23:59.  
Similarly, the ECO Mode is active from 18:00 of weekday d4 - Tuesday until 06:00 of weekday d5 -  
Wednesday.  
The ECO START time of weekday d5 - Wednesday has no effect as it is preceded by the ECO START time  
of weekday d4 - Tuesday.  
It can be, without change of meaning, any time between 00:00 and 06:00.  
To avoid undesired ECO Mode operation, verify:  
Date and Time (first page of parameter).  
ECO Mode screen how many hours of ECO Mode operation have been selected for  
each day of the week.  
NOTE !  
The ECO Mode becomes active only if the load is supplied from inverter.  
Modifications reserved  
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7
OPERATION  
7.1 PROCEDURES FOR SINGLE LP 33 Series  
7.1.1 Start-up of the LP 33 Series  
Before connecting hazardous voltages, make sure that:  
The connection to the electrical system has been performed by qualified personnel;  
The equipment frame has been correctly grounded to the main earth;  
Make sure that mains input protection is removed;  
All the panels removed to allow the UPS connection have been correctly reinstalled;  
The UPS switches Q1 and Q2 are OFF (Pos. 0);  
The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)  
are removed.  
This procedure must be performed for the first start-up following the installation, with the UPS  
completely switched Off and not powered.  
This procedure presupposes that the load is not yet supplied by the UPS system.  
NOTE !  
The UPS can be started-up using the battery supply in case the input mains should be  
unavailable.  
To avoid an incidental battery discharge, it is recommended to proceed to the UPS  
start-up having the input mains available.  
1. Switch ON the mains power at the input distribution panel.  
EXECUTING MAINBOARD  
SELF TEST  
As a result the UPS performs a self-test and the LCD will show  
the following screen:  
00000000000  
SELF TEST OK!  
NOTE !  
In case the alarm “4410 - Mains bypass out of  
tolerance” persists, please contact your Service  
Center.  
2. Insert the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.  
Continue  
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3. Switch On the output switch Q1 (Pos. I).  
LP 33  
40kVA  
The output will be supplied by the mains through the bypass.  
APPLICAT. ON UTILITY  
= 70%  
Verify, selecting the screen METERING/Udcp and Udcn, that the  
booster voltage has reached about 215 VDC.  
Udcp=215V  
Ubp=164V Ubn=164V F  
Udcn=215V  
Charge level  
Autonomy  
= 100%  
= 800min  
4. Switch On the inverter entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
Some seconds later the load will be transferred on inverter  
and the main screen will display: APPLICATION ON UPS  
LP 33  
40kVA  
APPLICATION ON UPS  
= 70%  
5. Operation mode selection.  
LP 33 Series is delivered normally selected for permanent VFI operation.  
ECO Mode can be enabled and the ECO START time & ECO STOP time can be programmed for each  
day of the week (see Section 6.3.1-5).  
END OF PROCEDURE  
NOTE !  
Even if the UPS is delivered with the battery fully charged, they could be partially  
discharged during transportation or storage.  
It is recommended to recharge the battery during a few hours in order to provide the  
complete battery energy stored to the load in the event of mains failure.  
Modifications reserved  
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7.1.2 UPS shutdown with load transfer on manual bypass (Q2)  
The purpose of this procedure is to supply the load directly by mains through manual bypass Q2.  
This procedure is normally performed when the UPS must be completely switched OFF for maintenance  
or service purpose, performed by an authorized Service Center.  
NOTE !  
This procedure must not be performed if the UPS is used as frequency converter.  
1. Switch OFF the inverter by entering the screen:  
COMMAND MENU  
INVERTER ON  
MENU/COMMAND MENU/INVERTER OFF  
INVERTER OFF  
*
Attention: to switch OFF permanently the inverter the key  
Enter must be pressed 2 times.  
The output will be supplied by the mains through the automatic  
bypass.  
LP 33  
40kVA  
APPLICAT. ON UTILITY  
= 70%  
2. Switch ON the maintenance bypass Q2 (Pos. I).  
LP 33  
40kVA  
APPL. ON MANUAL DEV.  
= 70%  
3. Switch OFF the output switch Q1 (Pos. 0).  
4. Perform the command total off.  
5. Remove the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.  
Continue ►  
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6. In order to discharge the DC link capacitors, start once more  
COMMAND MENU  
INVERTER ON  
the inverter through the screen:  
*
MENU/COMMAND MENU/INVERTER ON  
INVERTER OFF  
Remark:  
command INVERTER ON will be enabled only when  
the inverter voltage of each phase decreases below  
7 VAC (about 30 seconds).  
INVERTER:  
U2= 7V  
Frequency  
U1= 7V  
U3= 7V  
60.0Hz  
=
Synchronized  
Before proceeding to step 7, check on the display panel that the  
DC link voltage (both polarities) Udcp and Udcn has reached the  
minimum voltage of 5 VDC (about 30 seconds).  
Udcp= 5V  
Ubp=0V  
Charge level  
Autonomy  
Udcn= 5V  
Ubn=0V O  
= 0%  
= 0min  
7. Switch OFF the inverter by entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
*
The load is now powered directly by mains through the manual bypass Q2.  
END OF PROCEDURE  
WARNING !  
The UPS cabinet contains parts electrically live.  
Apart from the front door, do not open any other part of the UPS.  
NOTE !  
With separate mains inputs, it’s possible to disconnect mains rectifier.  
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7.1.3 Start-up following the operation on manual bypass (Q2)  
This procedure presupposes that the load is powered by the manual bypass switch:  
The inverter is switched OFF;  
The manual bypass switch Q2 is switched ON (pos. I);  
The output switch Q1 is switched OFF (Pos. 0);  
The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) are removed.  
NOTE !  
This procedure must not be used if the UPS is used as frequency converter.  
1. Insert the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.  
2. Switch ON the output switch Q1 (Pos. I).  
3. Only in case it has been previously activated (* present beside  
LED TEST  
RESET TOTAL OFF  
the text RESET TOTAL OFF), restore the command total off by  
entering the screen:  
*
MENU/RESET TOTAL OFF  
4. Switch OFF the maintenance bypass Q2 (Pos. 0).  
Udcp=215V  
Udcn=215V  
Verify, selecting the screen METERING/Udcp and Udcn, that the  
booster voltage has reached about 215 VDC.  
Ubp=164V Ubn=164V F  
Charge level  
Autonomy  
= 100%  
= 800min  
5. Switch ON the inverter by entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
Some seconds later the load will be transferred on inverter and  
the main screen will display: APPLICATION ON UPS  
LP 33  
40kVA  
APPLICATION ON UPS  
= 70%  
END OF PROCEDURE  
Modifications reserved  
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7.1.4 Complete shutdown  
As a result of this procedure the UPS is completely switched OFF and not powered.  
NOTE !  
This procedure involves all equipment powered by UPS, to be shut down.  
1. Perform the command total off.  
2. Switch OFF the output switch Q1 (Pos. 0).  
3. Remove the battery fuses F5, F6, F7 and eventual external fuses in case of external battery.  
4. In order to discharge the DC link capacitors, start once more  
COMMAND MENU  
INVERTER ON  
the inverter through the screen:  
*
MENU/COMMAND MENU/INVERTER ON  
INVERTER OFF  
Remark:  
command INVERTER ON will be enabled only when  
the inverter voltage of each phase decreases  
below 7 VAC (about 30 seconds).  
INVERTER:  
U2= 7V  
Frequency  
U1= 7V  
U3= 7V  
60.0Hz  
=
Synchronized  
Before proceeding to step 5, check on the display panel that  
the DC link voltage (both polarities) Udcp and Udcn has reached  
the minimum voltage of 5 VDC (about 30 seconds).  
Udcp= 5V  
Ubp=0V  
Charge level  
Autonomy  
Udcn= 5V  
Ubn=0V O  
= 0%  
= 0min  
5. Switch OFF the inverter by entering the screen:  
COMMAND MENU  
MENU/COMMAND MENU/INVERTER OFF  
INVERTER ON  
INVERTER OFF  
*
6. Switch OFF the mains power at the AC input distribution panel.  
END OF PROCEDURE  
CAUTION !  
If the above procedure is not completely performed, it could cause  
serious damages to the UPS.  
WARNING !  
In case the procedure described on step “4 - discharge DC link capacitors” cannot be  
completely performed, the DC capacitors could be charged with dangerous voltage  
for about 15 minutes.  
Wait until capacitors are completely discharged before starting the UPS again.  
Apart from the front door, do not open any other part of the UPS.  
Modifications reserved  
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7.1.5 Restore to normal operation after “total off”  
NOTE !  
Make sure the UPS to be status of the activation of “total off”, i. e. Q1 closed, Q2 open  
and the battery fuses F5, F6, F7 (and eventual external fuses in case of external  
battery) connected.  
View of the panel after pressing the button “total off”:  
LP 33  
40kVA  
APPLICAT. SUPPLY OFF  
All Contactors are open.  
= 0%  
Booster, inverter and Static-Switch shutdown.  
1. Reset total off”.  
LED TEST  
RESET TOTAL OFF  
Restore the command “total off” by entering the screen:  
MENU/RESET TOTAL OFF  
*
The load is supplied by the mains through the automatic  
bypass.  
The booster starts automatically.  
LP 33  
40kVA  
The LCD screen must display the status:  
APPLICATION ON BYPASS  
APPLICATION ON BYPASS  
= 70%  
2. Switch ON the inverter by entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
LP 33  
40kVA  
The LCD screen must display the status:  
APPLICATION ON UPS  
APPLICATION ON UPS  
= 70%  
END OF PROCEDURE  
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7.1.6 Restore to normal operation after “EPO – Emergency Power Off”  
NOTE !  
Make sure the UPS to be status of the activation of “EPO”, i. e. Q1 closed, Q2 open and  
the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)  
connected.  
View of the panel after pressing the button “EPO”:  
LP 33  
40kVA  
APPLICAT. SUPPLY OFF  
All Contactors are open.  
= 0%  
Booster, inverter and Static-Switch shutdown.  
1. Reset the button EPO”.  
01.01.2005  
12:15:45  
NR=255 Status=A588  
4563: EMERGENCY OFF  
ACTIVATED  
Press Alarm, to reset alarm and buzzer.  
2. Reset the UPS by entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
The load is supplied by the mains through the automatic  
bypass.  
The booster starts automatically.  
LP 33  
40kVA  
The LCD screen must display the status:  
APPLICATION ON BYPASS  
APPLICATION ON BYPASS  
= 70%  
3. Switch ON the inverter by entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
The load will be automatically transferred from mains to the  
inverter.  
LP 33  
40kVA  
The LCD screen must display the status:  
APPLICATION ON UPS  
APPLICATION ON UPS  
= 70%  
END OF PROCEDURE  
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7.2 PROCEDURES FOR PARALLEL SYSTEM LP 33 Series  
7.2.1 Parallel System start-up of the LP 33 Series  
Before connecting hazardous voltages, make sure that:  
The connection to the electrical system has been performed by qualified personnel;  
The equipment frame has been correctly grounded to the main earth;  
Make sure that mains input protection is removed;  
All the panels removed to allow the UPS connection have been correctly reinstalled;  
The UPS switches Q1 and Q2 are OFF (Pos. 0);  
The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)  
are removed.  
This procedure must be performed for the first start-up following the installation, with all the units  
completely switched Off and not powered.  
This procedure presupposes that the load is not yet supplied by the UPS system.  
NOTE !  
The UPS can be started-up using the battery supply in case the input mains should be  
unavailable.  
To avoid an incidental battery discharge, it is recommended to proceed to the UPS  
start-up having the input mains available.  
1. Switch ON the mains power for each unit at the input  
EXECUTING MAINBOARD  
SELF TEST  
distribution panel.  
As a result each unit performs a self-test and the LCD will show  
00000000000  
the following screen:  
SELF TEST OK!  
The LCD screen will display the number of the unit in the parallel  
system (P1, P2, P3 or P4).  
NOTE !  
In case the alarm “4410 - Mains bypass out of  
tolerance” persists, please contact your Service  
Center.  
2. Insert the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on  
each unit.  
Continue ►  
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3. Switch ON the output switch Q1 (Pos. I) on each unit.  
LP 33  
40kVA P1  
When the last Q1 will be closed, the output will be supplied by  
the mains through all bypass.  
APPLICAT. ON UTILITY  
= 70%  
Verify, selecting the screen METERING/Udcp and Udcn, that the  
booster voltage has reached about 215 VDC.  
Udcp=215V  
Ubp=164V Ubn=164V F  
Udcn=215V  
Charge level  
Autonomy  
= 100%  
= 800min  
4. Switch ON the inverter on the first unit entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
5. Switch ON the inverter on the other units in the same manner.  
COMMAND MENU  
(Do not start the next inverter until the sequence of the previous  
one ends – about 10 seconds).  
INVERTER ON  
INVERTER OFF  
*
Some seconds later the load will be transferred on inverter and  
the main screen of each unit will display:  
LP 33  
40kVA P1  
APPLICATION ON UPS  
APPLICATION ON UPS  
= 70%  
END OF PROCEDURE  
NOTE !  
Even if the UPS is delivered with the battery fully charged, they could be partially  
discharged during transportation or storage.  
It is recommended to recharge the battery during a few hours in order to provide the  
complete battery energy stored to the load in the event of mains failure.  
Modifications reserved  
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7.2.2 Parallel UPS shutdown with load transfer on manual bypass (Q2)  
The purpose of this procedure is to supply the load directly by mains through manual bypass Q2.  
This procedure is normally performed when the UPS must be completely switched OFF for maintenance  
or service purpose, performed by an authorized Service Center.  
1. Switch OFF the inverter on each unit entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
*
Attention: to switch OFF permanently the inverter the key  
Enter must be pressed 2 times.  
The output will be supplied by the mains through all automatic  
bypass.  
LP 33  
40kVA P1  
APPLICAT. ON UTILITY  
= 70%  
2. Switch ON the maintenance bypass Q2 (I) on each unit.  
LP 33  
40kVA P1  
APPL. ON MANUAL DEV.  
= 70%  
3. Switch OFF the output switch Q1 (0) on each unit.  
4. Perform the command total off on each unit.  
5. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on  
each unit.  
Continue ►  
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6. In order to discharge the DC link capacitors, start once more  
COMMAND MENU  
INVERTER ON  
the inverter on each unit through the screen:  
*
MENU/COMMAND MENU/INVERTER ON  
INVERTER OFF  
Remark:  
command INVERTER ON will be enabled only when  
the inverter voltage of each phase decreases  
below 7 VAC (about 30 seconds).  
INVERTER:  
U2= 7V  
Frequency  
U1= 7V  
U3= 7V  
60.0Hz  
=
Synchronized  
Before proceeding to step 7, check on the display panel that  
the DC link voltage (both polarities) Udcp and Udcn has reached  
the minimum voltage of 5 VDC (about 30 seconds).  
Udcp= 5V  
Ubp=0V  
Charge level  
Autonomy  
Udcn= 5V  
Ubn=0V O  
= 0%  
= 0min  
7. Switch OFF the inverter on each unit entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
*
The load is now supplied directly from the mains through the manual switches Q2.  
END OF PROCEDURE  
WARNING !  
The UPS cabinet contains parts electrically live.  
Apart from the front door, do not open any other part of the UPS.  
NOTE !  
With separate mains inputs, it’s possible to disconnect mains rectifier.  
Modifications reserved  
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7.2.3 Start-up following the operation on maintenance bypass (Q2)  
This procedure presupposes that the load is powered by the manual bypass switch:  
The inverter is switched OFF;  
The manual bypass switch Q2 is switched ON (Pos. I);  
The output switch Q1 is switched OFF (Pos. 0);  
The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) are removed.  
1. Insert the rectifier input fuses F1, F2, F3 and the battery fuses F9, F10, F11 / F13, F14, F15 (and  
eventual external battery fuses) on each unit.  
2. Switch ON the output switch Q1 (Pos. I) on each unit.  
3. Only in case it has been previously activated (* present beside  
the text RESET TOTAL OFF), restore the command total off on  
any one of the units by entering the screen:  
LED TEST  
RESET TOTAL OFF  
*
MENU/RESET TOTAL OFF  
4. Open the maintenance bypass switch Q2 (Pos. 0) on each  
Udcp=215V  
Ubp=164V Ubn=164V F  
Udcn=215V  
unit.  
Verify, selecting the screen METERING/Udcp and Udcn, that the  
booster voltage has reached about 215 VDC on each unit.  
Charge level  
Autonomy  
= 100%  
= 800min  
5. Switch ON the inverter on each unit entering the screen:  
MENU/ COMMAND MENU /INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
(Do not start the next inverter until the sequence of the  
previous one ends – about 10 seconds).  
The load will be automatically transferred from mains to the  
inverters as the needed power requested from the applied load  
is achieved on inverter side.  
LP 33  
40kVA P1  
APPLICATION ON UPS  
= 70%  
The main screen of each unit will display:  
APPLICATION ON UPS  
END OF PROCEDURE  
Modifications reserved  
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7.2.4 Shutdown of a single unit in a parallel system  
With purpose to separate one unit from the parallel system.  
1. Switch OFF the inverter only on this unit entering the screen:  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
MENU/COMMAND MENU/INVERTER OFF  
Attention: to switch OFF permanently the inverter the key  
Enter must be pressed 2 times.  
*
2. Switch OFF the output switch Q1 (0) only on this unit.  
3. Perform the command total off only on this unit.  
4. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)  
only on this unit.  
5. In order to discharge the DC link capacitors, start once more  
COMMAND MENU  
INVERTER ON  
the inverter only on this unit through the screen:  
*
MENU/COMMAND MENU/INVERTER ON  
INVERTER OFF  
Remark:  
command INVERTER ON will be enabled only when  
the inverter voltage of each phase decreases  
below 7 VAC (about 30 seconds).  
INVERTER:  
U2= 7V  
Frequency  
U1= 7V  
U3= 7V  
60.0Hz  
=
Synchronized  
Before proceeding to step 6, check on the display panel that  
the DC link voltage (both polarities) Udcp and Udcn has reached  
the minimum voltage of 5 VDC (about 30 seconds).  
Udcp= 5V  
Ubp=0V  
Charge level  
Autonomy  
Udcn= 5V  
Ubn=0V O  
= 0%  
= 0min  
6. Switch OFF the inverter only on this unit entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
*
7. Switch OFF the mains power only on this unit at the AC input distribution panel.  
END OF PROCEDURE  
WARNING !  
In case the unit should be disconnected and removed from the operating system, the  
operation must be performed by qualified persons.  
If an intermediate unit must be disconnected from a parallel system pay attention  
do not open the control bus: keep the plugs J3 and J4 connected to the board “P16 -  
Connector adapter RPA” (see Section 4.8.4).  
Modifications reserved  
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7.2.5 Start-up an additional unit in a parallel system  
Before connecting hazardous voltages, make sure that:  
The connection to the electrical system has been performed by qualified personnel;  
The equipment frame has been correctly grounded to the main earth;  
Make sure that mains input protection is removed;  
All the panels removed to allow the UPS connection have been correctly reinstalled;  
The UPS switches Q1 and Q2 are OFF (Pos. 0);  
The battery fuses F5, F6, F7 (and eventual external fuses in case of external battery)  
are removed.  
This procedure must be performed when the load is supplied by the other units of the UPS system and  
an additional unit must be switched ON and connected to the parallel bus in order to share the load  
with each other.  
This unit must be completely switched OFF and not powered.  
1. Switch ON the mains power at the input distribution pane on  
EXECUTING MAINBOARD  
SELF TEST  
this unit.  
As a result the UPS performs a self-test and the LCD will show  
00000000000  
the following screen:  
SELF TEST OK!  
NOTE !  
In case the alarm “4410 - Mains bypass out of tolerance” persists, please contact  
your Service Center.  
2. Insert the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on  
this unit.  
3. Switch ON the output switch Q1 (Pos. I) on this unit.  
LP 33  
40kVA P2  
APPLICAT. ON UTILITY  
= 70%  
Verify, selecting the screen METERING/Udcp and Udcn, that the  
booster voltage has reached about 215 VDC of this unit.  
Udcp=215V  
Ubp=164V Ubn=164V F  
Udcn=215V  
Charge level  
Autonomy  
= 100%  
= 800min  
4. Switch ON the inverter of this unit entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
When the inverter will be synchronized, the unit will be  
automatically connected with the parallel bus-bar and the  
load will be shared with the other units.  
LP 33  
40kVA P2  
APPLICATION ON UPS  
= 70%  
The main screen of each unit will display: APPLICATION ON UPS  
END OF PROCEDURE  
Modifications reserved  
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7.2.6 Complete shutdown of a parallel system  
As a result of this procedure the parallel system is completely switched OFF and not powered.  
NOTE !  
This procedure involves all equipment powered by parallel system, to be shut down.  
1. Perform the command total off on any one of the units.  
2. Switch OFF the output switch Q1 (Pos. 0) on each unit.  
3. Remove the battery fuses F5, F6, F7 (and eventual external fuses in case of external battery) on  
each unit.  
4. In order to discharge the DC link capacitors, start once more  
COMMAND MENU  
INVERTER ON  
the inverter on each unit through the screen:  
*
MENU/COMMAND MENU/INVERTER ON  
INVERTER OFF  
Remark:  
command INVERTER ON will be enabled only when  
the inverter voltage of each phase decreases  
below 7 VAC (about 30 seconds).  
INVERTER:  
U2= 7V  
Frequency  
U1= 7V  
U3= 7V  
60.0Hz  
=
Synchronized  
Before proceeding to step 5, check on the display panel that  
the DC link voltage (both polarities) Udcp and Udcn has reached  
the minimum voltage of 5 VDC (about 30 seconds).  
Udcp= 5V  
Ubp=0V  
Charge level  
Autonomy  
Udcn= 5V  
Ubn=0V O  
=
=
0%  
0min  
5. Switch OFF the inverter on each unit entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
MENU COMANDI  
INVERTER ON  
INVERTER OFF  
*
6. Switch OFF the mains power of each unit at the AC input distribution panel.  
END OF PROCEDURE  
CAUTION !  
If the above procedure is not completely performed, it could cause  
serious damages to the UPS.  
WARNING !  
In case the procedure described on step “4 - discharge DC link capacitors” cannot  
be completely performed, the DC capacitors could be charged with dangerous  
voltage for about 15 minutes.  
Wait until capacitors are completely discharged before starting the UPS again.  
Apart from the front door, do not open any other part of the UPS.  
Modifications reserved  
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7.2.7 Restore to normal operation after “total off”  
NOTE !  
Make sure the all units of the parallel system to be status of the activation of “total  
off”, i. e. Q1 closed, Q2 open the battery fuses F5, F6, F7 (and eventual external fuses in  
case of external battery) connected.  
View of the panel after pressing the button “total off”:  
LP 33  
40kVA P1  
APPLICAT. SUPPLY OFF  
All Contactors are open.  
= 0%  
Booster, inverter eand Static-Switch shutdown.  
1. Reset total offof the parallel system.  
LED TEST  
RESET TOTAL OFF  
Restore the command “total off”, on any one of the units, by  
entering the screen: MENU/RESET TOTAL OFF  
*
The load is supplied by the mains through the automatic  
bypass.  
The booster starts automatically.  
LP 33  
40kVA P1  
The LCD screen must display on all Units the status:  
APPLICATION ON BYPASS  
APPLICATION ON BYPASS  
= 70%  
2. Switch ON the inverter on first unit by entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
*
*
In case of sufficient output power, the output will transfer to  
Inverter.  
3. Switch ON the inverter on the other units by entering the  
COMMAND MENU  
INVERTER ON  
screen: MENU/COMMAND MENU/INVERTER ON  
INVERTER OFF  
(Do not start the next inverter until the sequence of the previous  
one ends – about 10 seconds).  
As soon as the output power of the inverters is sufficient to  
supply the load, the output of the units with running inverter  
will transfer to inverter.  
LP 33  
40kVA P1  
APPLICATION ON UPS  
= 70%  
The LCD screen must display on all Units the status:  
APPLICATION ON UPS  
END OF PROCEDURE  
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7.2.8 Restore to normal operation after “EPO – Emergency Power Off”  
NOTE !  
Make sure the all units of the parallel system to be status of the activation of EPO, i. e.  
Q1 closed, Q2 open and the battery fuses F5, F6, F7 (and eventual external fuses in case  
of external battery) connected.  
View of the panel after pressing the button “EPO”:  
LP 33  
40kVA P1  
APPLICAT. SUPPLY OFF  
All Contactors are open.  
= 0%  
Booster, inverter and Static-Switch shutdown.  
1. Reset the button EPO”.  
01.01.2005  
12:15:45  
NR=255 Status=A588  
4563: EMERGENCY OFF  
ACTIVATED  
Press Alarm, to reset alarm and buzzer.  
2. Reset all UPS by entering the screen:  
MENU/COMMAND MENU/INVERTER OFF  
COMMAND MENU  
INVERTER ON  
*
INVERTER OFF  
The load is supplied by the mains through the automatic  
bypass.  
The booster starts automatically.  
LP 33  
40kVA P1  
The LCD screen must display on all Units the status:  
APPLICATION ON BYPASS  
APPLICATION ON BYPASS  
= 70%  
3. Switch ON the inverter on first unit by entering the screen:  
MENU/COMMAND MENU/INVERTER ON  
COMMAND MENU  
INVERTER ON  
INVERTER OFF  
*
*
In case of sufficient output power, the output will transfer to  
Inverter  
4. Switch ON the inverter on the other units by entering the  
MENU COMANDI  
INVERTER ON  
screen: MENU/COMMAND MENU/INVERTER ON  
(Do not start the next inverter until the sequence of the previous  
INVERTER OFF  
one ends – about 10 seconds).  
As soon as the output power of the inverters is sufficient to  
supply the load, the output of the units with running inverter  
will transfer to inverter.  
LP 33  
40kVA P1  
APPLICATION ON UPS  
= 70%  
The LCD screen must display on all Units the status:  
APPLICATION ON UPS  
END OF PROCEDURE  
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8
OPTIONS  
8.1 OPTIONS GENERAL VIEW  
UTILITY INPUT  
F1  
F2  
F3  
F4  
LPS33U_030-040_RPA system_GE_01  
LP 33 Series  
LP 33 Series  
LP 33 Series  
LP 33 Series  
1
2
3
4
RPA kit  
Redundant Parallel Architecture  
RPA  
Board  
RPA  
Board  
RPA  
Board  
RPA  
Board  
Allows to extend the unit to a parallel system with 2, 3, or 4 units  
connected on the same bus, which ensure the highest reliability rate  
and increase the power availability without prior investments.  
LOAD  
Additional battery charge  
For battery with extended backup time (max. 15A).  
Dimensions (WxDxH): 16.93” x 28.55” x 70.95” / 430 x 725 x 1802 mm  
Customer Interface  
The Customer Interface allows the client the exchange of information  
(monitoring and control) with the following interfaces:  
Serial port RS232.  
6 programmable output channels.  
2 programmable input channels, of witch one for GEN-ON.  
EPO (Emergency Power Off).  
Advanced SNMP Card  
Simple Network Management Protocol  
The Advanced SNMP Card is an interface to the Ethernet  
Network, and provides UPS information via the standard SNMP  
Protocol (UPS-MIB (RFC-1628); GE Single MIB; GE Parallel MIB).  
The UPS can therefore be managed by a Network Management  
System (NMS) or by our applications (for instance JUMP), which  
uses this information to determine the state of the UPS in order  
to guarantee safe and orderly shutdown of the server, when  
needed.  
Connectivity Software  
JUMP Software Suite / IRIS Service, etc.  
Software application for the control and monitoring of the UPS.  
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9
MAINTENANCE  
WARNING !  
All maintenance and service works must be performed by QUALIFIED SERVICE PERSON.  
9.1 GENERAL MAINTENANCE  
When used properly, the LP 33 Series UPS is virtually maintenance free.  
Take care of proper environmental conditions (see Installation Guide - Section 3.5 – Ventilation & Cooling)  
and keep air inlets/outlets free from dust and any other obstacle.  
9.2 COOLING FAN MAINTENANCE  
The expected operational life of the cooling fans is approximately 40.000 hours of continuous  
operation.  
A high ambient temperature will shorten this operational life.  
9.3 BATTERY MAINTENANCE  
The service life of the battery is from 3 to 6 years, depending on the operating temperature and on the  
number of discharge cycles.  
The UPS LP 33 Series offers the possibility of SBM (Superior Battery Management).  
The function SBM can be activated through a service Parameter.  
The functionality of SBM reduces the Battery recharging time together with improved lifetime of the  
Battery.  
As a healthy battery is essential to the performance of the UPS, an automatic or manual battery test  
can be performed regularly to ensure failsafe operation, in order to check if the battery can provide the  
expected backup time in case of mains failure.  
We recommend the battery test be performed at least every 1 month, especially if the battery is not  
sufficiently discharged during normal operation.  
Since the parameter enabling the battery test protected by user password, please contact your Service  
Center for more information.  
Please consider that, if you did a full battery test to verify the full runtime of the battery, the charger  
needs at least 8 hours to recharge the battery up to 90% of its capacity.  
To guarantee that the battery is fully charged, the UPS system should be in operation for at least 12  
hours every 3 months.  
When the condition of the battery is critical, the warning signal will be activated (general alarm, buzzer  
and alarm message “4118 - Battery fault”).  
In this case the battery must be replaced as soon as possible.  
Please contact your Service Center.  
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9.4 SERVICE REQUIRED  
LP 33  
40 kVA  
If this lamp lights up during the normal operation (service  
parameter with password), the performances of the UPS remain the  
same, but that means the unit has not been serviced for the last  
20.000 hours by a qualified GE Service Engineer.  
APPLICATION ON UPS  
= 70%  
SERVICE REQUIRED  
Some components of the UPS which need periodic maintenance, if not replaced, could cause a  
reliability reduction of the supply system.  
We highly recommend that you contact your Service Center for preventive maintenance work.  
NOTE !  
Ask to your local Service Center to submit the form of Preventive Maintenance Contract suitable  
for your specific needs.  
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10 NOTES  
10.1 NOTES FORM  
It is recommended to note in this section Notes, with date and short description all the operations  
performed on the UPS, as: maintenance, components replacement, abnormal situations, etc. .  
Date  
Description  
Done by  
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OPM_LPS_3UO_30K_40K_0US_V010.doc  
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RIDER FOR WARRANTY FOR SALE OF SiteProTM, DIGITAL ENERGYTM SG Series and LP Series UPS.  
This Rider incorporates by reference the Terms and Conditions in  
GE Industrial Systems (herein called GE) GETC2003, and includes the  
following additional provisions contained herein.  
In the event of conflict between this Rider and GETC2003, the Rider  
shall take precedence.  
If reperformance is not practicable, Seller will furnish without charge  
services in an amount essentially equal to those that, in the sole  
judgment of Seller, would have been required for reperformance.  
Where a failure cannot be corrected by Seller’s reasonable efforts,  
the parties will negotiate an equitable adjustment in price.  
In providing a replacement Product or parts, Seller reserves the right  
to use refurbished circuit boards, which shall be warranted in  
accordance with this Warranty Provision.  
The correction of any failure or the supply of repaired or replacement  
parts or Products pursuant to this Warranty Provision shall not  
extend the duration of the applicable Warranty Period.  
Seller does not warrant the following items: (i) computer hardware, (ii)  
any computer software, including software provided by Seller with  
any Product, (iii) products or services obtained from others or (iv) any  
batteries used in conjunction with the products, including those  
provided by Seller, and in regard to these items, only the warranty of  
the manufacturer, if any, shall apply.  
Seller's obligation under this Provision entitled “Warranty” shall  
terminate immediately upon any modification of the Product by  
Customer unless made with the approval of Seller.  
Limitation on use with life support equipment:  
Customer understands and agrees that the products sold  
hereunder are not intended for application or use, and shall not be  
used: (i) in conjunction with or for life support equipment when  
failure of any product can be reasonably be expected to cause  
failure of or diminish the effectiveness of such life support Customer  
represents and warrants that it shall NOT USE THE PRODUCTS FOR  
ANY SUCH PURPOSES, OR PERMIT OTHERS TO USE THE PRODUCTS  
FOR ANY SUCH PURPOSES.  
If, in breach of the foregoing, any such use occurs, Seller shall have  
no liability for any resulting damage or injury, in addition to any  
other legal or equitable rights of Seller, Customer shall indemnify  
Seller against any such liability, whether arising as a result of  
breach of contract, warranty, indemnity, tort (including negligence),  
The Warranty Period applicable to each Product can be  
extended, if Customer purchases an extended warranty from Seller.  
If Customer purchases an extended warranty from Seller, the terms  
of such extended warranty shall supersede these warranty  
provisions.  
strict liability or otherwise.  
WARRANTY: Seller warrants to Customer that during the “Warranty  
Period” applicable for its SitePro, Digital EnergyTM SG Series and LP  
Series UPS Product furnished hereunder (the “Product”) will be free  
from defects in material, workmanship and title.  
The warranty period (“Warranty Period”) for the specified  
Product begins on the earlier of three (3) months after the delivery  
date or upon commissioning of the Product (if applicable) and ends  
at the end of the period as set forth below:  
The Warranty Period for the specified Product is as follows:  
SitePro / Digital EnergyTM SG Series UPS  
LP Series UPS  
THE PRECEDING PARAGRAPHS OF THIS WARRANTY  
PROVISION SET FORTH THE EXCLUSIVE CLAIMS (EXCEPT AS TO  
TITLE) BASED ON DEFECT IN OR FAILURE OF A PRODUCT,  
WHETHER THE CLAIM IS IN CONTRACT, INDEMNITY,  
WARRANTY, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY  
OR OTHERWISE.  
Upon the expiration of the applicable Warranty Period, all such  
liability shall terminate and Customer shall have a reasonable time,  
not to exceed thirty (30) days after the applicable Warranty Period, to  
give written notice of any defects that appeared during the Warranty  
Period.  
12 Months  
24 Months  
In no case does this warranty apply to any failure or  
nonconformance with specifications caused by or attributable to  
any associated or complementary products not supplied under  
these Terms and Conditions, nor shall it in any case apply to the  
quantity or quality of the product of Customer or the process of  
manufacture on which any products are used.  
THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN AND IN  
LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL,  
IMPLIED OR STATUTORY.  
The warranties and remedies set forth herein are conditioned upon  
(a) proper transportation, handling, storage, installation,  
commissioning, operation, use and maintenance in conformance  
with the operation instruction manuals (including revisions thereto)  
provided by Seller, any applicable recommendations of Seller and  
any applicable laws, regulations or codes (b) repair or modification  
pursuant to Seller’s instructions or approval and (c) Customer  
promptly notifying Seller of any defects and, if required, promptly  
making the Product available for correction at Customer’s expense.  
This warranty shall not apply (a) if Customer or any other  
unauthorized person has made any modifications, alterations or  
repairs to the Product not authorized by Seller, including  
Customer’s use of parts in conjunction with the Product (excluding  
batteries) not admitted or delivered by Seller, (b) to a Product with  
removed or altered serial numbers, (c) to a Product damaged by  
acts of God, sources external to the Product, misuse, accident,  
abuse, neglect, negligence, or use beyond rated capacity, and (d) if  
GE authorized field service technician does not commission Digital  
Energyæ SG Series UPS and SitePro UPS.  
NO IMPLIED STATUTORY WARRANTY OF MERCHANTABILITY OR  
FITNESS FOR A PARTICULAR PURPOSE SHALL APPLY.  
INSTALLATION AND COMMISSIONING OF INSTALLABLE SYSTEMS: If  
the Products cannot be installed immediately after delivery,  
Customer is responsible for maintaining proper storage conditions  
according to operating manuals and any other instructions provided  
by Seller.  
Installable Products may only be installed by certified electrical  
installers and must be installed according to Seller’s specifications,  
appropriate national electrical codes and accepted standards of  
workmanship.  
For purposes of these GE Terms and Conditions, “Installable  
Products” shall mean Products that require the services of a certified  
electrical installer to be connected to the power grid.  
The commissioning of installable Products may only be done by  
a technician authorized by Seller and must be done according to  
Seller’s specifications.  
For purposes of these GE Terms and Conditions, “commissioning”  
shall mean the start-up of the installable Products and the testing of  
the installable Products in connection with the load.  
If commissioning is to be performed by Seller, Seller may refuse to  
commission the installable Products, if the operating conditions at  
Customer’s site do not allow safe commissioning and operation of  
the installable Products.  
If any Product or service fails to meet the foregoing warranties  
(except title), Seller shall thereupon correct any such failure either,  
at its option, by (i) repairing any defective or damaged part or  
Product and/or reperforming any defective service or (ii) making  
available, F.O.B. at Seller’s facility, place of manufacture or other  
mutually agreed upon point of shipment, any necessary repaired or  
replacement parts; provided, however, that prior to repairing any  
defective or damaged part or Product, Seller shall have received, at  
Customer’s cost, such part or Product in need of repair or  
replacement.  
Any costs resulting from a delay in commissioning will be charged to  
Customer.  
Modifications reserved  
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Operating Manual LP 33 Series 30 & 40 kVA  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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