IDS1000-A Air-Cooled Container Data Center
All-in-One Maintenance Guide
4 Alarms and Faults
Issue 01 (2016-01-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
63
4.20 UPS5000-E Alarms
Fault
Category
Alarm
Severity
Symptom
Possible
Cause
Troubleshooting
UPS5000-
E alarms
Major
The rectifier cannot
work, and the bus
voltage is not
boosted.
The mains
voltage exceeds
the upper
threshold 278 V
or is less than
the lower
threshold 80 V.
Check whether the
mains voltage exceeds
the thresholds. If yes,
contact the electric
power company.
PFC
soft-startup
fails.
Contact Huawei
technical support.
The power
module is
faulty.
Major
The buzzer buzzes,
the Fault indicator is
on, the inverter is
faulty, and the UPS
transfers to bypass
mode.
Output
overload or
short-circuit
exists.
Reduce loads or
troubleshoot the
short-circuited load.
The
UPS5000-E
inverter
temperature
exceeds the
upper
threshold.
Install more air
conditioners or
ventilation devices to
ensure normal
temperatures inside the
equipment room.
The power
module is
faulty.
Contact Huawei
technical support.
Major
When the mains is
normal, the UPS
works in bypass
mode and does not
transfer to inverter
mode.
The UPS is set
to ECO mode.
Set the UPS working
mode correctly.
The number of
bypass transfer
times reaches
the upper
threshold.
Reset the bypass
transfer times on the
LCD.
For other UPS5000-E alarms, see documents delivered with the product.