Alarms And Faults; Tp48400B Alarms - Huawei FusionModule1000A20 Maintenance Manual

FusionModule1000A20 CT Solution
Maintenance Guide

4.1 TP48400B Alarms

Alarm
Item
Rect
Fault
Rect
Protecti
on
Issue 01 (2019-02-25)
Severity Possible
Causes

Major The rectifier
is in poor
contact.
 The rectifier
is faulty.

Major The rectifier
input voltage
is too high.

The rectifier
input voltage
is too low.

The ambient
temperature is
too high.

The rectifier
is abnormal.
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4

Alarms and Faults

Solution
1. Check the Fault indicator on the rectifier
panel. If it is steady red, remove the
rectifier, and then reinstall it after the
indicator turns off.
2. If the alarm still exists, replace the rectifier.
1. Check whether the AC input voltage
exceeds the upper threshold of the rectifier
working voltage. If yes, rectify the power
supply fault and then resume the power
supply.
2. Check whether the AC input voltage is
below the lower threshold of the rectifier
working voltage. If yes, rectify the power
supply fault and then resume the power
supply.
3. Check whether the ambient temperature is
higher than the normal operating
temperature of the rectifier. If yes, check
and rectify the temperature unit fault.
4. Remove the rectifier that generates the
alarm and reinstall it after the indicator turns
off. If the alarm still exists, replace the
rectifier.
4 Alarms and Faults
46