Circuit Breaker Troubleshooting; Clearing The Epo State; Lithium Battery Cabinet Troubleshooting - Huawei PowerCube 5000 User Manual

PowerCube 5000
User Manual (SmartLi 100Ah)

8.1.7 Circuit Breaker Troubleshooting

Table 8-7 Troubleshooting
Symptom
A circuit breaker is faulty
due to overcurrent or a short
circuit.
The circuit breaker remains
faulty after you switch it to
OFF and then to ON.

8.1.8 Clearing the EPO State

Table 8-8 Clearing the EPO state
Symptom
The EPO button has been pressed, and the
SMU is energized.
The EPO button has been pressed, the SMU
is not energized, and the AC input or PV
input is energized.

8.2 Lithium Battery Cabinet Troubleshooting

Do not clear an alarm by reseating an ESM.
Table 8-9 Troubleshooting
Case
The ESM is
abnormal.
The BCU is
abnormal.
Issue 02 (2020-03-17)
Possible Cause
The circuit breaker is in a
position between ON and
OFF.
The circuit breaker is
damaged.
Symptom Possible Cause
The indicator is The BMU is faulty.
steady red.
Electrochemical cell fault
The red indicator The battery cabinet has
is on. generated a critical alarm.
Copyright © Huawei Technologies Co., Ltd.
Solution
Switch the circuit breaker to
OFF and then to ON.
Replace the circuit breaker.
Solution
1. Restore the EPO button.
2. Manually clear the alarm.
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.
Solution
Handle the alarm
according to the
alarm reference.
Handle the alarm
according to the
alarm reference.
8 Troubleshooting
123