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UPS2000-A-(6 kVA-10 kVA)
User Manual
B Alarm Handling
Issue 04 (2019-05-05)
Copyright © Huawei Technologies Co., Ltd.
135
Alarm
Name
Alar
m
Ident
ifier
(Alar
m ID)
Web
UI
Deci
mal
Syste
m
Alarm
Identi
fier
(Alar
m ID)
LCD
Heuri
sticim
al
Syste
m
Alarm
level
Alarm
Clear
Mode
Impact on the
System
Repair Proposal
support.
Internal
fault
2A-17
42-23
Critical
Manua
l
clear/P
ower-o
ff clear
The UPS shuts
down.
Possible cause: The M4 or CPLD chip
is faulty.
Measure: Contact Huawei technical
support.
Internal
fault
2A-18
42-24
Critical
Manua
l
clear/P
ower-o
ff clear
N/A
Possible cause: The EEPROM chip is
faulty.
Measure: Contact Huawei technical
support.
Internal
fault
2A-1
B
42-27
Critical
Power-
off
clear
The inverter
shuts down. The
UPS transfers to
bypass mode or
has no output.
Possible cause: The inverter is faulty.
Measure: Contact Huawei technical
support.
Internal
fault
2A-1
C
42-28
Critical
Power-
off
clear
The UPS shuts
down or transfers
to another
working mode.
Possible cause: The inversion relay is
faulty.
Measure: Contact Huawei technical
support.
Internal
fault
2A-1
D
42-29
Critical
Power-
off
clear
The UPS shuts
down or transfers
to another
working mode.
Possible cause: The inversion relay is
faulty.
Measure: Contact Huawei technical
support.
Internal
fault
2A-1E 42-30
Critical
Power-
off
clear
The UPS shuts
down or transfers
to another
working mode.
Possible cause: The inverter output is
short-circuited.
Measure: Resolve the short-circuit
issue (if any) for the output terminal,
clear the alarm, and restart the UPS. If
the alarm persists, contact Huawei
technical support.
Internal
fault
2A-1F 42-31
Critical
Autom
atic
clear
The UPS shuts
down or transfers
to another
working mode.
Possible cause: The mains has
experienced a transient high
voltage.
Measure: Handle the high voltage