FusionModule1000A40 IT Solution
Maintenance Guide (2016.05, AI Version)
4 Alarms and Faults
Issue 04 (2018-01-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
58
Fault
Category
Alar
m
Sever
ity
Symptom
Possible
Cause
Troubleshooting
The SPD is
faulty.
The SPD circuit
breaker is off.
A false alarm is
generated
(normally
closed contact).
Switch on the SPD
circuit breaker.
4.16 ATS Alarm
Fault
Category
Alar
m
Sever
ity
Symptom
Possible
Cause
Troubleshooting
ATS
alarm
Warni
ng
The switchover fails.
The control
terminals are
not properly
connected.
Properly connect the
terminals.
The voltages of
both power
supplies are
outside of the
normal working
range.
Check the power
supplies, and verify that
the voltage of at least
one power supply meets
the requirements.
The motor fuse is
blown.
The fuse has
deteriorated.
Contact Huawei
technical support.
There is a
short-circuit in
the motor, and
the fuse has
blown.
The ATS cannot be
operated, or an
action does not take
effect.
The switch body
is faulty.