Huawei PowerCube 5000 - Circuit Breaker Troubleshooting; Clearing the EPO State for SMU; Lithium Battery Cabinet Troubleshooting

PowerCube 5000
User Manual (SmartLi 100Ah)
8 Troubleshooting
Issue 02 (2020-03-17)
Copyright © Huawei Technologies Co., Ltd.
123
8.1.7 Circuit Breaker Troubleshooting
Table 8-7 Troubleshooting
Symptom
Possible Cause
Solution
A circuit breaker is faulty
due to overcurrent or a short
circuit.
The circuit breaker is in a
position between ON and
OFF.
Switch the circuit breaker to
OFF and then to ON.
The circuit breaker remains
faulty after you switch it to
OFF and then to ON.
The circuit breaker is
damaged.
Replace the circuit breaker.
8.1.8 Clearing the EPO State
Table 8-8 Clearing the EPO state
Symptom
Solution
The EPO button has been pressed, and the
SMU is energized.
1. Restore the EPO button.
2. Manually clear the alarm.
The EPO button has been pressed, the SMU
is not energized, and the AC input or PV
input is energized.
1. Restore the EPO button.
2. Turn off the AC and PV input switches
to power off the system.
3. Turn on the AC and PV input switches
to power on the system.
8.2 Lithium Battery Cabinet Troubleshooting
Do not clear an alarm by reseating an ESM.
Table 8-9 Troubleshooting
Case
Symptom
Possible Cause
Solution
The ESM is
abnormal.
The indicator is
steady red.
The BMU is faulty.
Handle the alarm
according to the
alarm reference.
Electrochemical cell fault
The BCU is
abnormal.
The red indicator
is on.
The battery cabinet has
generated a critical alarm.
Handle the alarm
according to the
alarm reference.