Huawei UPS2000-G-6KRTLL - Page 77

Alarm ID Alarm
Name
Severity Clearance
Condition
Trigger
Condition
Impact on
the System
Suggestion
19 Abnormal
mains
voltage
Minor The mains
voltage
input
recovers.
● The
mains is
disconne
cted or
fails.
● The
mains
input
voltage
harmoni
c
exceeds
10%
(square
wave
input is
not
supporte
d).
● The
mains
frequenc
y change
rate
exceeds
the
phase
lock rate
dened
in the
specica
tions
(2
Hz/s for
a single
UPS and
1 Hz/s
for a
parallel
system).
The system
cannot
work in
normal
mode. If
this alarm
is
generated
in normal
mode, the
system
transfers to
battery
mode.
Check
whether
the mains
voltage
input is
normal. If
the circuit is
faulty, send
the device
to the
maintenanc
e center.
UPS2000-G-6KRTLL
User Manual 4 Control Panel
Issue 02 (2022-06-30) Copyright © Huawei Technologies Co., Ltd. 71