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)
Cable
connections
are incorrect.
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.
The mains
is not
normal.
The
power
module
sampling
circuit is
not
normal.
Check whether the mains voltage
ranges from 80 V (excluding 80 V)
to 176 V. If no, the mains
monitoring circuit for the power
module is faulty. Replace the faulty
module.
The
bypass
voltage
range is
not
correctly
set.
The
bypass
input
voltage is
not
normal.
1. Check the bypass input voltage
or cable connections with a
multimeter.
2. Check the voltage system and
bypass voltage thresholds
configured on the LCD.
The
bypass
frequency
range is
not
correctly
set.
The
bypass
input
frequency
is not
normal.
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.
The phase
sequence of
the
Check whether the cable phase
sequence is correct using a
multimeter. If no multimeter is