UPS5000-E-(50 kVA-300 kVA)
User Manual (50 kVA Power Modules)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Alarm
ID
(Alarm
ID-Caus
e ID)
three-phase
bypass input
is reversed.
available, exchange the positions of
any two cables.
The neutral
wire of
bypass input
is not
installed
properly.
1. Secure or connect the neutral
wire to the cabinet if it is loose
or disconnected.
2. Check that the neutral wire to
the power distribution system is
normal.
Battery
connected
reversely
Batteries are
not properly
installed.
1. Check whether battery polarities
are correctly installed by using a
multimeter. If no, correct the
installation.
2. Check whether the battery 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
configure
d number
of
batteries
1. Check whether battery
parameters are correctly set.
2. If they are correctly set, certain
batteries may be faulty.
3. Check whether the battery