Chapter
1
Alerts by Status Indicators
The status indicators on the front of a battery module show its operating state.
Normal
SOC ≥ 75%
SOC ≥ 50%
SOC ≥ 25%
SOC < 25%
Voltage imbalance
Warning
Fault 1
Fault 2
Most problems are identified by the red and blue indicators. If a battery module
seems to not work properly but its red indicator neither flashes nor comes on solid,
check the fuse of the module. See
on page 14.
1.1 Abnormal states
NOTE
Make sure the higher level system is properly configured in accordance with the
diagnosis tables in this manual so that it can limit the amount of charge or dis-
charge current in an abnormal state to avoid failure.
There are three levels of alerts:
Warning
: When a battery module is likely to become unstable, it goes into a warning
state. This state is cleared when the module recovers its normal condition.
Fault 1
: When a battery module is likely to become faulty, it goes into a low level
fault state, This state may require an appropriate measure to be cleared.
Fault 2
: When a battery module falls outside prescribed limits, it goes into a high
level fault state. The battery module in this state is not used anymore.
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