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UPS5000-E-(360 kVA-480 kVA)
User Manual (40 kVA Power Modules)
Case
The inverter
is not normal.
The charger
generates an
alarm.
The UPS
works in
bypass mode
and does not
transfer to
inverter
mode.
The bypass is
not normal.
For details about component replacement and maintenance involved in Troubleshooting and Alarm List,
consult Huawei maintenance engineers.
Issue 07 (2020-01-10)
Symptom
boosted.
The buzzer is
activated, the Fault
indicator is on, the
inverter is faulty, and
the UPS transfers to
bypass mode.
The buzzer is
activated, the Fault
indicator is on, and
the charging function
fails.
When the mains is
normal, the UPS
works in bypass
mode and does not
transfer to inverter
mode.
The buzzer is
activated, and the
Fault indicator is on.
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
threshold 80 V.
PFC soft-startup fails.
The power module is
faulty.
The UPS is overloaded
or short-circuited.
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
power company.
Replace the power
module.
Replace the power
module.
Reduce load or rectify
short circuits.
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.
On the LCD, choose
Clear Faults.
Replace the bypass
module.
Reduce the load, or
improve ventilation.
197
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