UPS2000-A-(6 kVA-10 kVA)-RTL
User Manual
A Alarm Handling
Issue 07 (2020-01-10)
Copyright © Huawei Technologies Co., Ltd.
95
Alarm
Name
Alarm
ID
Alarm
Cause
ID
Alarm
level
Alarm
Clear Mode
Impact on the
System
Repair Proposal
support.
Internal
fault
2A
29
Critica
l
Manual
clear/Power-
off clear
The power supply is
not affected.
Possible cause: The
charger is faulty.
Measure: Contact
Huawei technical
support.
Internal
fault
2A
2A
Critica
l
Manual
clear/Power-
off clear
The charger stops
working.
Possible cause: The
charger is faulty.
Measure: Contact
Huawei technical
support.
Internal
fault
2A
30
Critica
l
Manual
clear/Power-
off clear
The UPS cannot
start.
Possible cause: The
software and hardware
versions do not match.
Measure: Contact
Huawei technical
support.
Internal
fault
2A
31
Minor
Manual
clear/Power-
off clear
The UPS cannot
start.
Possible cause: The
software and hardware
versions do not match.
Measure: Contact
Huawei technical
support.
Internal
fault
2A
37
Minor
Automatic
clear
If the inverter of the
UPS is not started,
starting the inverter
is prohibited. If the
inverter is started,
this alarm does not
affect the running of
the UPS.
Possible cause: The UPS
is abnormal.
Measure: Contact
Huawei technical
support.
Internal
fault
2A
3C
Critica
l
Power-off
clear
The UPS shuts
down.
Possible cause: The
battery switching
transistor is faulty.
Measure: Contact
Huawei technical
support.
Fan
exception
2B
1
Critica
l
Automatic
clear
The power supply is
not affected.
Possible cause: The fan
is abnormal.
Measure: Clean up the
foreign matter around the
fan. If the alarm persists,
contact Huawei technical
support.