Multi-Rect. Fault; Rect Fault; Rect Protection - Huawei TP48200A-DT19D1 Telecom Power User Manual

TP48200A-DT19D1 Telecom Power
User Manual

4.2.22 Multi-Rect. Fault

Possible Causes



Measures
1.
2.
3.

4.2.23 Rect Fault

Possible Causes


Measures
1.
2.

4.2.24 Rect Protection

Possible Causes




Measures
1.
2.
3.
4.
Issue 03 (2019-11-15)
The subrack or slot connectors are faulty.
Rectifiers are faulty.
The SMU is faulty.
Remove the rectifiers and check whether the slot connectors are damaged or deformed. If
so, repair or replace the slot connectors or the entire subrack.
Reinstall the rectifiers. If the alarm persists, replace the rectifiers.
Restart the SMU. If the alarm persists, replace the SMU.
Rectifier connections are loose.
A rectifier is faulty.
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.
If the alarm persists, replace the rectifier.
The rectifier input voltage is too high.
The rectifier input voltage is too low.
The ambient temperature is too high.
The rectifier is abnormal.
Check whether the AC input voltage exceeds the upper threshold for rectifier working
voltage. If so, locate and rectify the power supply fault and restore the power supply.
Check whether the AC input voltage is below the lower threshold for rectifier working
voltage. If so, locate and rectify the power supply fault and restore the power supply.
Check whether the ambient temperature is higher than the maximum operating
temperature of the rectifier. If so, locate and rectify the temperature control system fault.
Remove the rectifier that has generated the alarm and reinstall it after the indicator turns
off. If the alarm persists, replace the rectifier.
Copyright © Huawei Technologies Co., Ltd.
4 Maintenance
52