Huawei FusionModule800, Maintenance Manual

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FusionModule800 Smart Small Data Center
Maintenance Guide
4 Troubleshooting
Issue 02 (2016-11-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
19
Symptom Possible Cause Measure
The ATS cannot switch
automatically.

The power is abnormal.
 The alarm indicator on
the ATS controller is on.
 The ATS is set to manual
mode.
 The ATS handle is not
removed.
 The ATS controller has
no input.

The control loop fuse has
blown.
 The switching delay is
set, but the ATS does not
automatically switch to
O.

Check that the power is
normal.
 Clear all ATS alarms.
 Set the ATS to automatic
mode.
 Remove the ATS handle.
 Check that the terminal
output is 220 V using a
multimeter. If it is
abnormal, check that the
upstream input circuit
breaker is turned on.
 Replace the fuse by
referring to
5.2.2
Replacing a Fuse .
 Set the switching delay,
and close the automatic
switch to O.
The surge protection
function fails.  The SPD circuit breaker
is not turned on.
 The SPD ground cable is
not connected.
 The surge protection
module is abnormal. The
SPD window is red.
 Check that the SPD
circuit breaker is turned
on. The power
distribution subrack
(monitoring type) will
prompt an alarm
indicating that the SPD
circuit breaker is not
turned on.
 Check that the SPD
ground cable is
connected.
 Replace the surge
protection module by
referring to
5.2.1
Replacing a Surge
Protection Module
.
The indicators are off.  Cables are loose.
 The fuse holder trips.
 The fuse is damaged.
 The indicators are
damaged.
 Connect the cables again.
 Turn on the fuse holder.
 Replace the fuse of the
indicators by referring to
5.2.2 Replacing a Fuse .
 Replace an indicators by
referring to
5.2.3
Replacing an Indicator .
The mains switch is ON.
The LCD displays nothing. The input power supply is
not connected. Check the UPS input power
cable connection.