Alerts by Status Indicators
The module voltages is lower than the tolerance limit.
NOTE
The battery module turns off 10 minutes after going into the fault 2 state.
1.2.4
Too large voltage difference between cells
Indicators
Alert Level Alert condition
Charge
limit
Discharge
limit
Release condition
Warning
> 0.3 V for 3 s
50%
50% < 0.2 V for 3 s
Fault 1
> 0.5 V for 3 s
0%
0% < 0.3 V for 3 s
When the lowest cell voltage is higher than 3.5 V, the difference between the highest
cell voltage and the lowest cell voltage is larger than the tolerance limit. At the fault
1 state, try these steps:
1. Check the conditions of the battery module using any available method.
2. Shut off the higher level system and wait until cell balancing is completed.
3. Re-activate the ESS when the red indicator turns off.
If the problem persists, contact LG Chem for technical assistance.
1.3 Current abnormality
1.3.1 Over-charged current
Indicators
Alert Level Alert condition
Charge
limit
Discharge
limit
Release condition
Warning
> 68.8 A for 3 s
0%
100% < 66.1 A for 3 s
Fault 1
> 71.4 A for 3 s
0%
100% < 68.8 A for 3 s
Fault 2
> 74.1 A for 3 s
0%
0%
A current more than the tolerance limit is charged. At the fault 1 state, try these steps:
1. Check the conditions of the battery module using any available method.
2. Set the maximum charge current to less than 63 A on the higher level system.
3. Re-activate the ESS when the red indicator turns off.
If the problem persists, contact LG Chem for technical assistance.
1.3.2 Over-discharged current
Indicators
Alert Level Alert condition
Charge
limit
Discharge
limit
Release condition
Warning
> 68.8 A for 3 s
100%
0% < 66.1 A for 3 s
Fault 1
> 71.4 A for 3 s
100%
0% < 68.8 A for 3 s
Fault 2
> 74.1 A for 3 s
0%
0%
8