Huawei UPSJZ-T Series - Page 69

Alarm ID Cause ID Name Severity Clearance
Mode
Trigger
Condition
Impact
on the
System
Solution
42 31 Internal
fault
Critical This
alarm
needs to
be
manually
cleared.
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
when the
UPS is
running,
the UPS
transfers
to bypass
mode.
● Possibl
e
cause:
The
hardw
are is
damag
ed.
Measu
re:
Contac
t your
dealer
or
technic
al
suppor
t.
● Possibl
e
cause:
The
UPS
supplie
s
power
to
half-
wave
loads.
Measu
re:
Check
that
the
load
type is
suppor
ted by
the
UPS.
UPSJZ-T-(1 kVA–3 kVA)
User Manual 4 Control Panel
2022-08-15 64