UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
Copyright © Huawei Technologies Co., Ltd.
Alarm ID
(Alarm
ID-Cause
ID)
The bypass SCR
open-circuits.
The bypass
frequency
changes fast.
The output
frequency track
rate is incorrectly
set.
1. Check that the bypass output
frequency does not change
fast.
2. Check that the Output freq.
track rate is properly set.
The dual bus
connector is
loose.
Parameters are
set incorrectly.
1. Check the dual bus connector.
2. Check the parameter settings.
3. The master BSC system is not
supplying power.
Maint. breaker
misoperation
The user operation is
incorrect.
1. Shut down the inverter and
then close the maintenance
circuit breaker.
2. After maintenance, open the
maintenance circuit breaker
and then start the inverter.
The inverter is in
self-check.
Wait until the inverter self-check
is complete.