TP48120A-HD15A1, TP48120A-HD15A2,
TP48200A-HD15A1, and TP48200A-HD15A2 Telecom
Power
User Manual
4 Maintenance
Issue 03 (2020-01-04)
Copyright © Huawei Technologies Co., Ltd.
47
Measures
1.
Check whether there is smoke inside the cabinet. If yes, disconnect the power supply
from the cabinet, handle the fault, and then resume system operation and clear the alarm
on the SMU.
2.
Check whether the smoke sensor is faulty. If yes, replace the smoke sensor.
4.2.19 Rect Fault
Possible Causes
The rectifier is in poor contact.
The rectifier is faulty.
Measures
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.
4.2.20 Rect Protection
Possible Causes
The rectifier input voltage is too high.
The rectifier input voltage is too low.
The ambient temperature is too high.
The rectifier is abnormal.
Measures
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.
4.2.21 Rect Comm Fault
Possible Causes
The rectifier is removed.
The rectifier is in poor contact.
The rectifier is faulty.
Measures
1.
Check whether the rectifier is removed. If yes, reinstall it.
