UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
Copyright © Huawei Technologies Co., Ltd.
Alarm ID
(Alarm
ID-Cause
ID)
The air channel
for the power
module is
obstructed.
functioning properly. Replace
the power module if the fans
are faulty.
The fan for the
power module is
abnormal.
The fan
monitoring cable
for the power
module is not
working
properly.
Replace the faulty power module.
Check the fan or replace the
bypass module.
The fan is faulty.
The fan
monitoring cable
is faulty.
1. Replace the fan.
2. Check the fan monitoring
cable.
A load
short-circuit
occurs.
A short circuit
occurs inside the
module. (This
fault seldom
occurs.)
The output is
incorrectly
grounded.
1. Check load cable distributions.
2. Check whether the output is
grounded.
3. If the load cable connections
are normal and the output is
correctly grounded, replace the
power unit or module.
The I2C bus is
not normal.
The E2PROM is
faulty.
1. Rectify the fault and check
whether the alarm is cleared.
2. If the alarm is generated again,
replace the power module.
The bypass
waveform is not
normal.
If not all modules generate the
alarm, start the UPS, transfer it
to normal mode, and replace
the faulty module.
If all modules generate the
alarm, open the bypass input
circuit breaker. After the