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UPS2000-A-(1 kVA-3 kVA)
User Manual
Alar
Caus
Nam
m ID
e ID
e
42
28
Inter
nal
fault
42
31
Inter
nal
fault
Issue 17 (2024-01-30)
Seve
Clear
Trigger
rity
ance
Condition
Mod
e
Critic
The
The inverter
al
first
output
three
voltage is
alarm
lower than
s are
100 V.
cleare
d
auto
matic
ally
in 10
minut
es.
Later
alarm
s, if
gener
ated,
must
be
cleare
d
manu
ally.
Critic
This
The
al
alarm
difference
must
between the
be
absolute
manu
value of the
ally
positive bus
cleare
voltage and
d.
that of the
negative bus
voltage is 100
V.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Impact on the
Solution
System
If this alarm is
● Possible cause: The
generated during
the running of
the UPS, the UPS
transfers to no
output. After 10
minutes, the UPS
automatically
starts the
inverter. If this
alarm persists,
the UPS then
transfers to no
output again.
● Possible cause: The
After the UPS
transfers to no
output three
times, the alarm
needs to be
manually
● Possible cause: The
cleared.
If this alarm is
● Possible cause: The
generated during
the running of
the UPS, the UPS
transfers to
bypass mode.
● Possible cause: The
5 Setting Control Panel
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.
inverter is faulty.
Measure: Contact
the dealer or
Huawei technical
support.
output is short-
circuited.
Measure: Check
whether the output
is short-circuited.
hardware is
damaged.
Measure: Contact
the dealer or
Huawei technical
support.
UPS supplies power
to half-wave loads.
Measure: Check
that the load types
are supported by
the UPS.
67
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