Huawei UPS2000-A-1KTTL User Manual

Alar
m ID
Caus
e ID
Nam
e
Seve
rity
Clear
ance
Mod
e
Trigger
Condition
Impact on the
System
Solution
42 28 Inter
nal
fault
Critic
al
The
rst
three
alarm
s are
cleare
d
auto
matic
ally
in 10
minut
es.
Later
alarm
s, if
gener
ated,
must
be
cleare
d
manu
ally.
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
automatically
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 specications.
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 Inter
nal
fault
Critic
al
This
alarm
must
be
manu
ally
cleare
d.
The
dierence
between the
absolute
value of the
positive bus
voltage and
that of the
negative bus
voltage is 100
V.
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.
● Possible cause: The
UPS supplies power
to half-wave loads.
Measure: Check
that the load types
are supported by
the UPS.
UPS2000-A-(1 kVA-3 kVA)
User Manual 5 Setting Control Panel
Issue 17 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 67

Huawei UPS2000-A-1KTTL Specifications

General

Brand	Huawei
Model	UPS2000-A-1KTTL
Category	UPS
Language	English