Eaton Electrical Marine Battery ETN1000 User Manual

EATON ETN1000 / ETN2000  
Grid PV-Inverter  
Installation and Operation Manual  
Version 1.6 E 2010.06  
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Before you start…  
Congratulations on choosing EATON ETN1000 / ETN2000 Grid PV-Inverter,  
a product from EATON Grid PV-Inverter is a highly reliable product due to its  
innovative design and perfect quality control. Such an inverter is used in  
high demand, grid-linked PV systems.  
This manual contains important information regarding  
installation and safe operation of this unit. Be sure to read this  
manual carefully before using.  
If you encounter any problems during installation or operation of this unit, first  
check this manual before contacting your local dealer or representative.  
Instructions inside this manual will help you solve most installation and  
operation difficulties.  
Thank you again for choosing our product. Please keep this manual handy  
for quick reference.  
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Safety instructions  
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Risk of Electric Shock  
1. Do not remove the casing. Inverter contains no user serviceable parts.  
Refer servicing to qualified service personnel.  
Both AC and DC voltage sources are terminated inside the PV-Inverter.  
Please disconnect these circuits before servicing.  
2. When a photovoltaic panel is exposed to light, it generates a DC voltage.  
When connected to this equipment, a photovoltaic panel will charge  
the DC link capacitors.  
3. Energy stored in this equipment’s DC link capacitors presents a risk of  
electric shock. Even after the unit is disconnected from the grid and  
photovoltaic panels, high voltages may still exist inside the PV-Inverter.  
Do not remove the casing until at least 30 minutes after disconnecting  
all power sources.  
4. This unit is designed to feed power to the public power grid (utility) only.  
Do not connect this unit to an AC source or generator. Connecting  
Inverter to external devices could result in serious damage to your  
equipment.  
5. Carefully remove the unit from its packaging and inspect for external  
damage. If you find any imperfections, please contact your local  
dealer.  
Edition 1.6E, 2010/06  
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Hot surfaces  
Although designed to meet all safety requirements, some  
parts and surfaces of Inverter are still hot during operation.  
To reduce the risk of injury, do not touch the heat sink at the back of the  
PV-Inverter or nearby surfaces while Inverter is operating.  
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Limited Warranty  
Inverter comes with a limited warranty. This warranty includes all defects of  
design, components and manufacturing. Excluded from warranty are  
damages due to:  
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Breaking the product seal (opening the casing)  
Improper transportation and delivery  
Unqualified persons opening the unit  
Improper installation  
Unauthorized modification, testing or repairing  
Use and application beyond the definition in this manual  
Application beyond the scope of safety standards  
Acts of nature such as lighting, fire, storm etc.  
The right to repair and/or replace the unit is at the manufacturers’ discretion.  
Any damages discovered during installation should be submitted via a  
written damage report within 5 working days of receiving the PV-Inverter.  
Otherwise EATON is not responsible for damages beyond the scope of this  
warranty.  
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2. Features  
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Very high conversion efficiency (up to 96%)  
MPPT (Maximum Power Point Tracking)  
Higher power capacity than similar products of the same size.  
Embedded LCD display showing complete status information  
Natural convection cooling. Quiet, fan-less design  
Stylish, modern casing  
Compact, small profile  
High reliability, and Easy to install  
Maintenance free  
Standard RS-232, optional RS-485 and others  
No external GFCI breaker is required  
Edition 1.6E, 2010/06  
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3. Installation instructions  
Opening the package  
After opening the package, please check the contents of the box. It  
should contain the following:  
1. One Inverter  
2. One Instruction manual  
3. One mounting frame  
4. 4 mounting screws  
5. 2 safety-lock screws  
6. One cable gland and TB cover for AC cable  
Before installation  
Before starting installation please consider the following items:  
This unit is designed for indoor usage. Do not expose the unit to  
wet, or moist conditions.  
Do not expose the PV-Inverter to direct sunlight. Direct sunlight  
increases the internal temperature that may reduce conversion  
efficiency.  
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Check the ambient temperature of installation is within specified  
range -20 ~ +55°C.  
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The AC grid voltage is between 206 and 264VAC, 50/60Hz.  
Electric utility company has approved the grid connection.  
Qualified personnel are performing the installation.  
Adequate convection space surrounds the inverter.  
Inverter is being installed away from explosive vapors.  
No flammable items are near the inverter.  
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Inverter can be installed and operated at locations where the ambient  
temperature is up to 55°C. However, for optimal operation, it is  
recommended that Inverter is installed where the ambient  
temperature is between 0~40°C.  
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Mounting Inverter to the wall  
1. Select a wall or solid vertical surface that can support the PV-Inverter.  
2. Inverter requires adequate cooling space. Allow at least 20cm space  
above and below the inverter.  
3. Using the mounting frame as a template, drill 4 holes as illustrated in the  
following figures.  
4. Fix the mounting frame as the  
figure shows.  
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5. Hang the inverter on the mounting frame  
Select the installation location so that the status display can be easily viewed.  
Choose a strong mounting wall to prevent vibrations while inverter is  
operating.  
6. Check the installation conditions  
a) Do not install the PV-Inverter on a slanted surface  
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b) Check the upper straps of PV-Inverter and ensure it fits on to the  
bracket  
c) Insert safety-lock screws to the bottom leg to secure the inverter  
Check the secure mounting of the PV-Inverter by trying to raise it  
from the bottom. The PV-Inverter should remain firmly attached.  
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Connecting to the grid (AC utility)  
1. Measure grid (utility) voltage and frequency. It should be 230VAC (or  
220VAC), 50/60Hz, and single phase.  
2. Open the breaker or fuse between PV-Inverter and utility.  
3. For Inverter, connect AC wires as  
follows:  
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Insert utility wires through cable gland.  
Connect wires according to polarities  
indicated on terminal block. L LINE  
(brown), N Neutral (blue) and →  
system ground (green).  
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Fasten the gland plate in order to make sure cable is firmly fixed.  
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Twist the gland, attached screws in order to seal the AC gland cover.  
To prevent risk of electric shock, ensure the ground wire is properly  
earthed before operating the PV-Inverter.  
4. Suggested cable width for AC wire.  
Diameter φ  
Model  
Area (mm2)  
AWG no.  
(mm)  
EATON ETN1000  
EATON ETN2000  
1.02  
1.25  
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Connect to PV Panel (DC input)  
1. Make sure the maximum open circuit voltage (Voc) of each PV string is  
less than 500VDC UNDER ANY CONDITION. We recommend Voc less  
than 360VDC with ambient temperature of 25°C.  
2. Use MC (Multi-contact®) connectors for PV array terminals.  
3. Connect the positive and negative terminals from the PV panel to  
positive (+) terminals and negative (-) terminals on the PV-Inverter.  
Each DC terminal on Inverter can withstand up to 5ADC in 1.0kW and  
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10ADC in 2.0kW.  
Before connecting PV panels to DC terminals, please make sure the  
polarity is correct. Incorrect polarity connection could permanently  
damage the unit.  
Please check the short-circuit current of the PV string. The total short-circuit  
current of the PV string should be less than the inverter’s maximum DC  
current.  
High voltages exist when the PV panel is exposed to the sun. To  
reduce risk of electric shock, avoid touching live components and  
treat connection terminals carefully.  
Checking  
1.  
When the PV panels are connected and their output voltage is greater  
than 100 VDC but the AC grid is not yet connected, the message on the  
LCD display produce the following messages in order: “MODEL” ->  
“Waiting” -> “No Utility”. The display repeats “No Utility” and the RED  
“fault LED” turns on.  
2.  
3.  
4.  
Close the AC breaker or fuse between PV-Inverter and grid. The  
normal operating sequence begins.  
Under normal operating conditions the LCD displays “Pac=xxxx.xW”.  
That is the power fed to the grid. The green LED turns lights-up.  
This completes the check.  
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4. System Diagram  
The typical connection diagram for the entire PV system is shown in the  
following figure.  
Utility  
Connection  
system  
+
-
PV panel  
1.  
2.  
PV Panel: Provide DC power to inverter.  
EATON ETN1000 / ETN2000 PV Inverter converts DC (Direct Current)  
power from PV panel(s) to AC (Alternating Current) power. Because  
Inverter is grid-connected it controls the current amplitude according to  
the PV Panel power supply. Inverter always tries to convert the  
maximum power from your PV panel(s).  
3.  
4.  
Connection system: This “interface” between Utility and PV-Inverter  
may consist of electrical breaker, fuse and connecting terminals. To  
comply with local safety standards and codes, the connection system  
should be designed and implemented by a qualified technician.  
Utility: Referred to as “grid” in this manual, is the way your electric  
power company provides power to your place. Please note that  
Inverter can only connect to low-voltage systems (namely, 220,  
230VAC, 50/60Hz).  
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5. Operating Your PV-Inverter  
Modes of operation  
There are 3 different modes of operation.  
1. Normal mode: In this mode, Inverter works normally. Whenever the  
supplied power from PV panel is sufficient (voltage>150VDC), Inverter  
converts power to the grid as generated by the PV panel. If the power is  
insufficient, (voltage<100VDC) Inverter enters a “waiting” state. Whilst  
“waiting” Inverter uses just enough power from the PV panel monitor  
internal system status. In normal mode the green LED is on.  
2. Fault mode: The internal intelligent controller can continuously monitor  
and adjust the system status. If Inverter finds any unexpected  
conditions such as grid problems or internal failure, it will display the  
information on its LCD and light up the red “Fault” LED.  
3. Shutdown mode: During periods of little or no sunlight, Inverter  
automatically stops running. In this mode, Inverter does not take any  
power from the grid. The display and LED’s on the front panel do not  
work.  
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Front Panel arrangement  
Function Key  
LCD (Liquid  
Crystal Display)  
Power-on LED  
Fault LED  
Pac=xxxx.xW  
LED  
There are 2 LED’s on Inverter, one is green and the other is red.  
Normally, only the green LED switches on during operation. Their  
indicated status is explained as follows:  
1.  
Power on (green LED): It lights to indicate that Inverter is running.  
2.  
Fault (red LED): Illuminates during a “fault” or “failure”. Details of  
possible faults and their solutions can be found in Chapter  
6,”Inverter Status”.  
Function Key  
Function Key is a key on PV-Inverter which can be pressed so as to  
rotate between each menu.  
Accuracy of the reading  
Normally, the accuracy of LCD reading is around ±2%. In all ranges of  
operation, the accuracy is up to ±5%.  
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Front Panel  
Operating Inverter is quite easy. During normal operation, Inverter runs  
automatically. However, to achieve maximum conversion efficiency of  
Inverter, please read through the following information:  
1.  
Automatic ON-OFF: Inverter starts up automatically when DC-power  
from the PV panel is sufficient. Once the PV-Inverter starts it enters  
one of the following 3 states:  
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Standby: The PV string can only provide just enough voltage to  
minimum requirements of the controller.  
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Waiting: When the PV string DC voltage is greater than 100V,  
Inverter enters a “waiting” state and attempts to connect to the  
grid.  
Normal operation: When PV string DC voltage is greater than  
150V, Inverter operates in the normal state.  
Model  
In this state, it feeds power to the grid.  
Inverter automatically stops when the PV power is  
not enough.  
Waiting  
2.  
3.  
Starting-up display sequence: Once the PV power  
is sufficient, Inverter displays information as  
shown in the flow chart to the right.  
Checking= xxxS  
Normal State  
Pac =xxxx.xW  
Change display information: During normal  
operation, LCD shows the detail of PV-Inverter.  
On the other hand, the display is setup to  
automatically indicate the supplying power to the  
grid. Each subsequent press changes the display  
by press the “Function” key on the front panel.  
Hold display: If you want to hold a specific display.  
Information during  
start-up  
4.  
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Repeatedly press the function key until the desired display is reached.  
Release the key and press again for more than 2 second until you see  
“Lock”, release the key; the information remains on the display. To  
change the display again, please press the key as indicated in above  
section 3. Change display information.  
5.  
6.  
LCD backlight control: To save power, the LCD display’s backlight  
automatically turns off after 10 seconds. To enable it, press the  
“Function” key again.  
Contrast control: A natural phenomenon of LCD displays is the  
background color is darker at higher temperatures. At higher  
temperatures, the characters may not be easily identified. In this case,  
the adjust the contrast as follows:  
a. Press the “Function” key repeatedly until  
Contrast  
“Contrast” shows in the display.  
b. Hold the “Function” key down for more  
Set Contrast  
than 2 seconds, until display shows “Set  
contrast” and a bar graph on the right.  
Lighter  
Darker  
Done  
Set Contrast  
Set Contrast  
c. Press the “Function” key repeatedly until  
the display’s contrast is acceptable.  
d. Release the key for more than 10 seconds,  
the display will show “Pac =xxxx.xW”.  
e. Setting completed.  
Pac =xxxx.xW  
Contrast setup  
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LCD Display Sequence:  
Feeding  
Model name  
FW version  
Pac =xxxx.xW  
Model  
A1.00  
Daily energy  
Total energy  
Etoday=xxx.xxKWh  
Operating status  
Contrast Adj.  
Set language  
Eac=xxxxxxkWh  
Vdc=xxx.xV  
Normal state  
Contrast  
DC-PV voltage  
Feeding current  
AC-Grid freq.  
Iac= x.xA  
Set language  
AC-Grid voltage  
Frequency=xx.xHz  
Vac=xxx.xV  
Edition 1.6E, 2010/06  
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Maximum Power Point Tracking (MPPT)  
IPV (A)  
PPV (W)  
A good PV inverter must be  
able to convert the maximum  
power from any PV panel. Due  
to its advanced design, Inverter  
PV-Inverter can track the  
Maximum power point  
1000W/m2  
@ 1000W/m2~ 120W  
125  
100  
75  
5
4
3
2
1
800W/m2  
600W/m2  
50  
maximum power from your PV  
panel in any condition. When the  
displayed power on the LCD  
output does not change  
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UPV (V)  
50  
0
10  
20  
30  
40  
dramatically, inverter is converting the maximum power from panels.  
When the LCD power reading is significantly changes, Inverter is  
tracking the power according to the varied sunlight.  
When the PV panel’s output is low, the feeding DC-power may  
drift slowly as does the AC power. It is because PV-Inverter is  
tracking maximum DC-power continuously.  
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6. Inverter Status  
Inverter is designed to be user-friendly. Therefore, the status of the Inverter  
can be easily understood by reading the information that shown on the front  
panel display. All possible messages are shown in the following table.  
Display information  
Operating conditions  
Normal Working Status  
Power off  
In English  
Description  
No display  
Standby  
PV inverter is totally shutdown, VPV <70V  
70VInput voltage <100V  
Standby  
Input voltage range 100~150V during  
start-up. After PV voltage is higher than  
100V, inverter is waiting for feeding to grid  
Initialization & waiting  
Check grid  
Waiting  
When PV voltage> 150V, inverter is  
checking feeding conditions  
Checking xxxS  
Normal  
Inverter is feeding power. After 10 seconds  
of this display, LCD will show wattage.  
Feeding grid, MPPT  
FLASH  
FLASH  
FLASH firmware  
Monitoring Parameters  
Instantaneous Output power  
Pac =xxxx.xW  
Eac=xxxxxxkWh  
Vac = xxx.xV  
The real time output power in xxxx W  
Accumulated energy  
information  
Total energy that has been fed to grid since  
inverter was installed  
Grid voltage  
Grid voltage in xxx.x VAC  
Grid frequency in xx.x Hz  
Grid frequency  
Frequency=xx.xHz  
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Operating conditions  
Feeding current  
PV array voltage  
Daily Energy  
In English  
Iac = x.xA  
Description  
Feeding current amount in xx.x A  
Input voltage from PV array, xxx.x VDC  
The accumulated kWh of that day  
Vdc = xxx.x V  
Etoday=xxx.xxKW  
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System Fault  
Earth fault of the PV-panels or failure of  
surge voltage protection  
Isolation failure  
Isolation fault  
Ground I fault  
Grid fault  
Leakage current detected from ground  
conductor is too high  
GFCI active  
Grid measured data is beyond the  
specification (voltage & frequency)  
Grid failure  
No utility  
No Utility  
Utility is not available  
Input voltage is higher than the maximum  
input voltage  
Input voltage too high  
Inverter Fault  
PV over voltage  
The readings of 2 microprocessors are not  
consistent. It could be caused by CPU  
and/or other circuit do not function well.  
Consistent failure  
Temperature too high  
Output relay failure  
Output DC injection too high  
EEPROM problem  
Consistent Fault  
Over temperature  
Relay Failure  
The internal temperature of inverter is  
higher than normal value  
The relay between inverter and grid is not  
functional  
Output DC injection is higher than  
expected  
DC INJ High  
EEPROM Failure EEPROM inside has data access problem  
Communication failure  
between microprocessors  
The communication between MCU inside  
SCI Failure  
is abnormal  
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Operating conditions  
DC bus voltage is too high  
DC bus voltage is too low  
In English  
High DC Bus  
Low DC Bus  
Ref 2.5V Fault  
Description  
The DC BUS voltage is higher than  
expected  
The DC BUS voltage is lower than  
expected  
2.5V reference voltage inside  
problem  
The 2.5V reference inside are abnormal  
Output DC sensor abnormal  
GFCI detection problem  
System Information  
DC Sensor Fault Detection of DC output sensor is abnormal  
GFCI Failure  
The GFCI detection circuit is abnormal  
EATON ETN1000  
/ETN2000  
Model display  
Inverter model, xkW inverter  
LCD contrast  
Contrast  
Set Contrast  
Lock  
LCD contrast setting  
LCD contrast setting  
LCD display lock  
Contrast setting of LCD display  
Hold the present display message  
The time that needs to reconnect grid  
power  
Waiting for reconnect to grid  
Firmware version  
Setting Language  
Reconnect xxxS  
Ver. xx.xx  
F/W version information  
Set Language  
Set up of the display language  
Edition 1.6E, 2010/06  
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7. Communications  
Inverter is equipped with a powerful communications interface and options.  
Use Inverter’s EZ control to monitor the status of your PV-Inverter. Also,  
qualified personnel can upgrade the firmware using the RS232 port.  
1. RS232: To use the RS232 port, remove the RS232 cover on the bottom  
side of Inverter. It is a DB9 socket. The pin definition is  
Pin  
Functional Description  
1
2
3
4
5
6
7
8
9
N.C.  
TxD  
RxD  
N.C.  
Common  
N.C.  
N.C.  
N.C.  
N.C.  
N.C. means “No Connection”  
2. Optional communications port: It is a powerful extension that can accept  
a special card that designed for communication purpose such as RS485.  
The RS485 card can be used to work with Inverter’s EZ logger as  
multiple monitoring applications.  
3. Firmware upgrade: To up-to-date keep the firmware, use the RS232  
port and supplied program to upgrade firmware. To do this, please  
contact EATON Customer Service.  
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EATON Contact Information  
Telephone: 1300 3 EATON  
Web:  
To prevent risk of damage it is recommended that only authorized  
personnel perform firmware upgrades.  
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8. Trouble shooting  
In most situations, the Inverter requires very little service. However, if  
Inverter is not able to work perfectly, please refer to the following instructions  
before calling your local dealer.  
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Should any problems arise, the red (Fault) LED on the front panel turns  
on and the LCD displays the relevant information. Please refer to the  
following table for a list of potential problems and their solutions.  
Display  
Possible actions  
1. Check the impedance is between PV (+) & PV  
(-) and the PV-Inverter is earthed. The  
impedance must be greater than 5MΩ  
2. If the problem persists please contact Eaton.  
1. The ground current is too high.  
Isolation Fault  
2. Unplug the inputs from the PV generator and  
check the peripheral AC system  
3. After the cause is cleared, re-plug the PV panel  
and check PV-Inverter status.  
4. If the problem persists please contact Eaton.  
1. Wait for 5 minutes, if the grid returns to normal,  
PV-Inverter automatically restarts.  
2. Make sure grid voltage and frequency meet the  
specifications  
Ground I Fault  
Grid Fault  
System  
Fault  
3. If the problem persists please contact Eaton.  
1. Grid is not connected.  
No Utility 2. Check grid connection cables.  
3. Check grid usability.  
1. Check the open PV voltage, see if it is greater  
than or too close to 450VDC  
2. If PV voltage is less than 450VDC, and the  
problem still occurs, please contact Eaton.  
1. Disconnect PV (+) or PV (-) from the input,  
restart the PV-Inverter  
Inverter  
Failure  
PV over  
Voltage  
Consistent  
Fault  
2. If it does not work, please Contact Eaton.  
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1. The internal temperature is higher than  
specified normal value  
2. Find a way to reduce the ambient temperature.  
3. Or move the inverter to a cooler environment  
4. If it is not effective, please contact Eaton.  
Over  
Temperature  
Relay Failure  
DC INJ High  
EEPROM  
1. Disconnect ALL PV (+) or PV (-)  
2. Wait for few seconds  
3. After the LCD switches off, reconnect and  
check again  
4. If the message reappears, please contact  
Eaton.  
Failure  
SCI Failure  
High DC Bus  
Low DC Bus  
Ref 2.5V Fault  
DC Sensor  
Fault  
GFCI Failure  
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If there is no display on the panel, please check PV-input connections.  
If the voltage is higher than 150V, call your local service.  
During periods of little or no sunlight, the PV-Inverter may continuously  
start up and shut down. This is due to insufficient power generated to  
operate the control circuits.  
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9. Specifications  
Electrical  
Model  
EATON ETN1000  
EATON ETN2000  
Nominal AC power  
Max. AC power  
(in 10 minutes)  
Input  
1000W  
2000W  
1100W  
2200W  
Nominal DCV  
Max. open DCV  
MPPT range  
Working range  
Max. input current  
Output  
360VDC  
500VDC  
150 to 450VDC  
100 to 500VDC  
5ADC  
360VDC  
500VDC  
150 to 450VDC  
100 to 500VDC  
10ADC  
Operational voltage  
range1 (F/W Setting)  
Operational frequency  
range2 (F/W Setting)  
Current distortion  
Power factor  
206~264 VAC  
206~264 VAC  
49.25~50.75Hz  
49.25~50.75Hz  
<3%  
>0.99  
95%  
<3%  
>0.99  
96%  
Maximum η  
93%  
95%  
European η  
Environment  
Protection degree  
Operating temperature  
Humidity  
IP 43  
-20 to 55ºC  
0 to 95%, non-condensing  
Heat Dissipation  
Power consumption  
Acoustic noise  
Communication & Features  
LCD  
Convection  
<7W  
<35dBA  
1-Line, 16 characters  
RS232 standard, RS485 optional  
Yes, via RS232  
Comm. Interface  
F/W upgrade  
Mechanical  
305x302x120  
11.3  
W×D×H (mm)  
Weight (kg)  
Normative references  
Grid interface regulation  
Safety  
AS4777  
AS3100  
EMC: EMS/EMI  
CE  
EN 61000-6-2 (2005) / EN 61000-6-3 (2007)  
LVD: 2006/95/EC EMC: 2004/108/EC  
1
Regulation voltage range is 200~270 VAC according to AS4777.  
Regulation frequency range is 45~55Hz according to AS4777.  
2
31  
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Product specifications are subject to change without notice  
Edition 1.6E, 2010/06  
32  
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