Huawei UPS5000-S-1600 kVA User Manual page 198

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UPS5000-S-1600 kVA
User Manual
Case
normal.
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.
Issue 04 (2020-03-03)
Symptom
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.
For details about component replacement and maintenance involved in Troubleshooting and Alarm List,
consult Huawei maintenance engineers.
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.
190

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