Huawei UPS5000-E Series User Manual

UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
7 Troubleshooting
Issue 11 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
247
Case
Symptom
Possible Cause
Measure
normal.
threshold 80 V.
power company.
PFC soft-startup fails.
Replace the power
module.
The power module is
faulty.
Replace the power
module.
The
inverter is
not
normal.
The buzzer is activated,
the Fault indicator is on,
the inverter is faulty,
and the UPS transfers to
bypass mode.
The UPS is overloaded
or short-circuited.
Reduce load or rectify
short circuits.
The power module is
faulty.
Replace the power
module.
The
charger
generates
an alarm.
The buzzer is activated,
the Fault indicator is on,
and the charging
function fails.
The charger fails.
Replace the power
module.
The charger experiences
overcurrent.
Replace the power
module.
The charger experiences
undervoltage.
Check whether the
configured number of
batteries is correct. If
the value is correct but
the alarm persists,
replace the power
module.
The UPS
works in
bypass
mode and
does not
transfer to
inverter
mode.
When the mains is
normal, the UPS works
in bypass mode and
does not transfer to
inverter mode.
Set the UPS working
mode to ECO mode.
Set the working mode
correctly.
The bypass transfer
times reach the upper
threshold.
On the LCD, choose
Clear Faults.
The
bypass is
not
normal.
The buzzer is activated,
and the Fault indicator
is on.
The bypass thyristor is
damaged.
Replace the bypass
module.
The bypass module
experiences
overtemperature.
Reduce the load, or
improve ventilation.
For details about component replacement and maintenance involved in Troubleshooting and Alarm List,
consult Huawei maintenance engineers.

Huawei UPS5000-E Series Specifications

General

Brand	Huawei
Model	UPS5000-E Series
Category	UPS
Language	English