User Guide

Troubleshooting
• BMS Internal Communication
• Battery Cell Voltage Imbalance
An abnormal state is cleared when the main pack recovers its normal condi-
tion.
NOTE
For a serious fault, if no proper corrective actions are taken by the inverter,
the main pack’s circuit breaker automatically trips to protect itself. For ex-
ample, if the Status indicator stays orange for more than 5 minutes, the
circuit breaker trips. Use the monitoring software on the inverter to iden-
tify what caused the fault.
3.4 Expansion Battery Pack
If an expansion battery pack is installed, check the indicators on its front to
determine in what state it is.
Status Charge/Discharge
Red → Green
1)
O Successfully initialized
Red → Red O Initialization failed
2)
Green Green Discharging in normal state
Green Red Charging in normal state
Green O Waiting in normal state
Flashing Green O Standby state
Flashing Red/Green O Protection mode
2)
O O No power supplied
3)
1)
This should change in 7 seconds.
2)
Contact LG Chem or your distributor in this case.
3)
The main battery pack is turned o.
If a fault is detected, the expansion pack shuts itself down and enters into pro-
tection mode. Even when the expansion pack is faulty, the main pack can op-
erate normally. On the contrary, when the main pack is faulty, the expansion
pack is also unavailable.
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