Install Manual

16
5 Troubleshooting
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Check the LED indicators on the front to determine the state of the battery pack. A fault state
is triggered when certain conditions like voltage or temperature are beyond design limitations.
The battery pack’s BMS periodically reports its operating state to the inverter.
When the battery pack falls outside of prescribed limits, it enters a fault state. When a fault is
reported, the inverter immediately terminates operation.
Use the monitoring software on the inverter to identify what caused the fault state. The possible
warning messages are as follows:
 Battery Overvoltage
 Battery Undervoltage
 Battery Over Temperature
 Battery Under Temperature
 Battery Discharge Overcurrent
 Battery Charge Overcurrent
 Battery Overcharge Power Limit
 Battery Overdischarge Power Limit
 BMS Internal Error
 External Communication Error
 Internal Communication Error
 Battery Cell Deviation Voltage
 Battery Pack Undervoltage
 Battery Urgent Undervoltage
The fault state is cleared when the battery pack resumes normal operation. If battery pack is
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Solution regional contact service point.
NOTE
For serious warnings, if no proper corrective action is taken by the inverter, the battery
pack’s circuit breaker will automatically trip to protect itself.
CAUTION
If the battery pack or the inverter indicates FAULT or fails to operate, contact LG Energy
Solution regional contact point or your distributor immediately.
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1. Visually check if the wiring matches the installation manual. (Section
3.3 Cable Connections.)
2. The circuit breaker is ON.
3. The battery LED power indicator is ON.
4. The inverter power is ON.
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1)
6. The inverter recognizes the battery.
2)
7. The battery is operational after installation.
7-1. The AC grid is connected.
7-2. The meter is installed.
7-3. Government approval is complete.
8. IF ANY ITEM IN #7 IS CHECKED AS "NO" OR IF THE INVERTER
NEEDS TO BE TURNED OFF, TURN OFF THE CIRCUIT
BREAKER.
3)
5.1.2 Troubleshooting Guidelines
If the battery LED power indicator is OFF
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3. Unplug all the wires and reconnect. Check that the wiring on the battery has been
done correctly. Refer to Section 3.3 Cable Connections.
4. Turn on the circuit breaker.
5. Turn on the inverter.
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7. Disconnect the power cable connector.
8. Contact LG Energy Solution regional contact point.
1) Contact the inverter manufacturer.
2) Refer to the inverter installation manual or troubleshooting guidelines.
3) Refer to the Installation manual (3.3 Cable Connections) for the location of the battery. and
the Circuit Breaker.
If the LED power indicator is ON, but the battery is not charging or discharging
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troubleshooting guide for instructions.
2. Check the inverter’s battery settings. Refer to the inverter’s troubleshooting guide
for battery setup instructions.
3. If the battery is recognized, inverter setup has been completed successfully.
4. If the issue persists:
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4-3. Unplug all wires and reconnect. Check that the wiring on the battery has been done
correctly. Refer to Section 3.3 Cable Connections.
4-4. Turn on the circuit breaker.
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circuit breaker
6. Contact LG Energy Solution regional service contact point.
LED Status Action
Power on
Charging
Discharging
If the LED fault indicator is ON
1. Check if the inverter recognizes the battery. Refer to the inverter’s troubleshooting
guide for battery setup instructions.
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company.
2-1. Send the fault ID to LG Energy Solution regional contact point.
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2-3. Wait further instruction from LG Energy Solution.
3. If the inverter is not connected to the internet, check the inverter LCD to read the
battery’s fault ID. Refer to the inverter’s troubleshooting guide for instructions.
3-1. Send the fault ID to LG Energy Solution regional contact point.
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3-3. Wait further instruction from LG Energy Solution.
LED Status Action
Fault