UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Alarm
ID
(Alarm
ID-Caus
e ID)
length of
the bypass
input or
output
cables is
incorrect.
The
bypass
SCR
open-circ
uits.
3. Rectify any bypass SCR
open-circuit.
The
bypass
frequency
changes
fast.
The
output
frequency
track rate
is
incorrectl
y 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.
Parameter
s are set
incorrectl
y.
1. Check the dual bus connector.
2. Check the parameter settings.
Maint.
breaker
misoperatio
n
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.