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UPS5000-E-(40 kVA-320 kVA)
User Manual
No.
2
3
4
5
Issue 10 (2015-09-15)
Case
Symptom
The
The buzzer buzzes,
inverter
the Fault indicator is
is
on, the inverter is
abnorma
faulty, and the UPS
l.
transfers to bypass
mode.
The
The buzzer buzzes,
charger
the Fault indicator is
generate
on, and the charging
s an
function fails.
alarm.
The UPS
When the mains is
works in
normal, the UPS
bypass
works in bypass
mode
mode and does not
and does
transfer to inverter
not
mode.
transfer
to
inverter
mode.
The
The buzzer buzzes,
bypass is
and the Fault
abnorma
indicator is on.
l.
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Copyright © Huawei Technologies Co., Ltd.
Possible Cause
fails.
The power module is
faulty.
The UPS is
overloaded or
short-circuited.
Inverter
overtemperature
occurs.
The power module is
faulty.
The charger fails.
The charger
experiences
overcurrent.
The charger
experiences
undervoltage.
Set the UPS working
mode to ECO mode.
The bypass transfer
times reach the upper
threshold.
The bypass thyristor
is damaged.
The bypass module
experiences
overtemperature.
7 Troubleshooting
Measure
module.
Replace the power
module.
Reduce load or
rectify short circuits.
Install more air
conditioners or
ventilation devices to
ensure normal
temperatures inside
the equipment room.
Replace the power
module.
Replace the power
module.
Replace the power
module.
Check whether the
configured number
of batteries is correct.
If the value is correct
but the alarm
persists, replace the
power module.
Set the working
mode correctly.
Clear the bypass
transfer times on the
LCD.
Replace the bypass
module.
Reduce the load, or
improve ventilation.
204
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