Huawei UPSJZ-T Series - Page 67

Alarm ID Cause ID Name Severity Clearance
Mode
Trigger
Condition
Impact
on the
System
Solution
42 28 Internal
fault
Critical The rst
three
alarms
are
cleared
automatic
ally in 10
minutes.
Later
alarms
need to
be cleared
manually.
The
inverter
output
voltage is
lower
than 100
V.
If this
alarm is
generated
when the
UPS is
running,
the UPS
supplies
no
output.
After 10
minutes,
the UPS
automatic
ally starts
the
inverter. If
this alarm
persists,
the UPS
then
supplies
no output
again.
After the
UPS
transfers
to no
output for
three
times, the
alarm
needs to
be
manually
cleared.
● Possibl
e
cause:
The
output
load
type or
load is
beyond
the
specic
ations.
Measu
re:
Check
wheth
er the
load
type is
suppor
ted
and
reduce
the
output
load.
Then,
manua
lly
clear
the
alarm
and
restart
the
UPS.
● Possibl
e
cause:
The
inverte
r is
faulty.
Measu
re:
Contac
t your
dealer
UPSJZ-T-(1 kVA–3 kVA)
User Manual 4 Control Panel
2022-08-15 62