Huawei UPS5000-S-600 kVA User Manual page 152

UPS5000-S-600 kVA
User Manual (Singapore, Three-phase, Three-wire)
Case
bypass
mode
and does
not
transfer
to
inverter
mode.
The
bypass is
not
normal.
Issue 01 (2021-04-14)
Symptom
UPS works in
bypass mode
and does not
transfer to
inverter mode.
The buzzer is
activated, and
the Fault
indicator is on.
NO TE
For details about component replacement and maintenance involved in Troubleshooting
and Alarm List, consult Huawei maintenance engineers.
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
The bypass transfer times
reach the upper threshold.
The bypass thyristor is
damaged.
The bypass module
experiences
overtemperature.
7 Troubleshooting
Measure
Clear the bypass
transfer times on
the LCD.
Replace the bypass
module.
Reduce the load, or
improve
ventilation.
144