Table of Contents
Advertisement
UPS2000-A-(1 kVA-3 kVA)
User Manual
If a UPS runs abnormally, rectify the fault by referring to the following table.
Table 9-1 Faults and troubleshooting measures
Symptom
The active power supply
is normal, but the LCD is
off and no buzzer beeps.
LCD and the buzzer
beeps once every second.
LCD and the buzzer
beeps twice every
second.
Issue 17 (2024-01-30)
and
blink on the
and blink on the
Copyright © Huawei Digital Power Technologies Co., Ltd.
9
Troubleshooting
Possible Cause
The mains input power
cable may be loose.
The mains input power
cable is mistakenly
connected to the output
terminal of the UPS.
The external or internal
batteries are incorrectly
connected.
The UPS is overloaded.
The UPS is overloaded
and now it is supplying
grid power to loads in
bypass mode.
The UPS is overloaded
for many times in a short
period. The UPS works in
bypass mode, and it
directly connects the
equipment to the active
power supply.
9 Troubleshooting
Measures
Check that the input
power cable is
connected.
Correctly connect the
mains input power cable
to the UPS mains input
terminal.
Check that all batteries
are connected correctly.
Remove excess load from
the UPS output.
Remove excess load from
the UPS output.
Remove excess load from
the UPS output, and
then shut down and
restart the UPS.
88
Advertisement
Table of Contents
