Huawei UPS5000-S-400K-SM User Manual page 291

UPS5000-S-(350 kVA-800 kVA)
User Manual
Alarm ID Alarm Name
(Alarm ID-
Cause ID)
0010-2
0011-1 Bypass phase
reversed
0012-1 Bypass neutral
absent
0020-1 Battery
connected
reversely
0021-1 Battery EOD
Issue 12 (2023-05-26)
Severity
Minor
Minor
Critical
Critical
Copyright © Huawei Digital Power Technologies Co., Ltd.
Cause
● The bypass
frequency
range is not
correctly set.
● The bypass
input
frequency is
not normal.
The phase
sequence of the
three-phase
bypass input is
reversed.
The neutral wire
of bypass input is
not installed
properly.
Batteries are not
properly installed.
The battery
voltage reaches
the EOD voltage
threshold due to
continuous
discharge.
B Alarm List
Solution
1. Check the bypass input
voltage or cable
connections with a
multimeter.
2. Check the bypass input
frequency. Check the rated
frequency and frequency
range configured on the
LCD.
Check whether the cable
phase sequence is correct
using a multimeter. If no
multimeter is available,
exchange the positions of any
two cables.
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.
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.
If the BCB box is configured,
check whether the BCB box
trips. If it trips, close the BCB
box switch.
282