Huawei UPS2000-G-2KRTL - Page 58

UPS2000-G-(1 kVA-3 kVA)
User Manual
4 Setting Control Panel
Issue 15 (2019-12-19)
Copyright © Huawei Technologies Co., Ltd.
51
Alar
m ID
Alarm
Cause
ID
Alarm
Name
Alarm
Severity
Alarm Clear
Mode
Trigger
Condition
Impact on
the
System
Repair Proposal
lower than
60% of the
rated output
current.
42
28
Internal
fault
Critical
The first three
alarms are
cleared
automatically
in 10 minutes.
Later alarms,
if generated,
must be
cleared
manually.
The inverter
output
voltage is
lower than
100 V.
If this alarm
is generated
during the
running of
the UPS,
the UPS
transfers to
no output.
After 10
minutes, the
UPS
automatical
ly starts the
inverter. If
this alarm
persists, the
UPS then
transfers to
no output
again. After
the UPS
transfers to
no output
three times,
the alarm
needs to be
manually
cleared.

Possible cause:
The output
load types are
not supported
or the load
exceeds the
specifications.
Measure:
Check whether
the load types
are supported
and reduce the
output load.
Then,
manually clear
the alarm and
restart the
UPS.

Possible cause:
The inverter is
faulty.
Measure:
Contact the
dealer or
Huawei
technical
support.

Possible cause:
The output is
short-circuited.
Measure:
Check whether
the output is
short-circuited.
42
31
Internal
fault
Critical
This alarm
must be
manually
cleared.
The
difference
between the
absolute
value of the
positive bus
voltage and
that of the
negative bus
voltage is
If this alarm
is generated
during the
running of
the UPS,
the UPS
transfers to
bypass
mode.

Possible cause:
The hardware
is damaged.
Measure:
Contact the
dealer or
Huawei
technical
support.