UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
Copyright © Huawei Technologies Co., Ltd.
Alarm ID
(Alarm
ID-Cause
ID)
input voltage of the UPS is
normal. If yes, the battery
sampling circuit of the power
module is faulty. Replace the
power module.
The battery voltage
reaches the EOD
voltage threshold
due to continuous
discharge.
If the BCB box is configured,
check whether the BCB box trips.
If it trips, close the BCB box
switch.
There is no
battery string.
The battery
string is not
properly
installed.
The power
module battery
fuse is blown.
1. Check that battery cables are
correctly connected.
2. Check that the battery terminal
voltage is normal.
3. Check that the battery fuse in
the power module is intact.
The configured
number of
batteries is less
than the actual
number.
The battery
neutral wire is
not installed
properly.
1. Check whether battery
parameters are correctly set.
2. If they are correctly set, certain
batteries may be faulty.
3. Check whether the battery
neutral wire is correctly
connected.
Battery discharge
results in low
battery voltage.
The battery
neutral wire is
not installed
properly.
The charger is
faulty.
1. If the low battery voltage
alarm is generated in battery
mode, check whether the
mains voltage recovers. If yes,
charge batteries immediately.
2. Check whether the battery
neutral wire is correctly
connected.
3. If this alarm is generated in
normal mode, check whether
the battery switch is ON. If
yes, the charger may be faulty.
Replace the related power
module.
The battery
string is not
properly
1. Check whether the positive
and negative terminals of the
battery string are grounded or
have sufficient resistance to
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