A Alarm Handling - Huawei UPS2000-A-RTL Series User Manual

UPS2000-A-(6 kVA-10 kVA)-RTL
User Manual
Alarm Alarm
Name ID
Abnormal 01
mains volt.
Abnormal 01
mains volt.
Abnormal 01
mains volt.
Issue 07 (2020-01-10)
Alarm Alarm Alarm
Cause level Clear Mode
ID
1 Minor Automatic
clear
2 Minor
3 Minor
Copyright © Huawei Technologies Co., Ltd.
A
Alarm Handling
Impact on the
System
 The UPS
transfers to
battery mode.
 If no battery is
equipped, the
UPS shuts
down.
 The UPS
changes the
working mode
or shuts down.

A Alarm Handling

Repair Proposal
Possible cause: The
mains voltage exceeds
280 V.
Measure: Check whether
the mains input voltage
exceeds 272 V. If the
voltage exceeds 272 V,
wait for the mains to
recover.
 Possible cause: The
mains voltage is
lower than 80 V.
 Measure: Check
whether the mains
input voltage is lower
than 88 V. If the
voltage is lower than
88 V, wait for the
mains to recover.
 Possible cause: The
input fuse is blown.
 Measure: Check the
status of the input
fuse.
 Possible cause: The
mains frequency is
out of the 45–55 Hz
range (for the rated
frequency of 50 Hz)
or out of the 55–65
Hz range (for the
rated frequency of 60
85