Compensation Cabinet Troubleshooting - Huawei FusionPower6000 Maintenance Manual

FusionPower6000
Maintenance Guide
Symptom

5.4 Compensation Cabinet Troubleshooting

If a fault occurs for multiple times, contact technical support.
Alarm
Communication fault
Grid RMS overvoltage
Grid RMS undervoltage
Incorrect grid phase
sequence
Current phase failure
Grid overfrequency
Grid underfrequency
DC bus overvoltage
DC bus undervoltage
Device RMS output
overcurrent
Device output overload
Issue 02 (2022-07-18)
Possible Cause
The temperature controller
generates an alarm,
indicating that the fan is
faulty.
The three-phase
temperature is unbalanced
during operation.
NO TICE
Suggestion
Contact technical support.
Modify the fault threshold.
Modify the fault threshold.
Use the automatic phase sequence correction function.
Contact technical support.
The alarm is automatically cleared after the fault is rectified.
The alarm is automatically cleared after the fault is rectified.
The alarm is automatically cleared after the fault is rectified.
The alarm is automatically cleared after the fault is rectified.
The alarm is automatically cleared after the fault is rectified.
The alarm is automatically cleared after the fault is rectified.
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Suggestion
● Check the fan fuse in the temperature
controller.
● Power off the system and check whether the
cable to the fan is disconnected.
● If the fan is short-circuited, contact
transformer technical support.
● If phase B is up to 10°C higher than the
other two phases, no action is required.
● If the temperature difference is large:
– Check whether the connector of the
temperature controller is properly
inserted.
– Check whether the three-phase load is
balanced.
5 Alarm Handling
38