Rect Protection; Single Rect Fault; Multi-Rect. Fault - Huawei ETP4830-A1 User Manual

ETP4830-A1 Embedded Power
User Manual

7.2.18 Rect Protection

Possible Causes
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Measures
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7.2.19 Single Rect Fault

Possible Causes
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Measures
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7.2.20 Multi-Rect. Fault

Possible Causes
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Measures
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Issue 10 (2017-08-08)
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.
The subrack or slot connector is faulty.
A rectifier is faulty.
The SMU is faulty.
Remove the rectifier and check whether the slot connector is damaged or deformed. If so,
repair or replace the slot connector or the entire subrack.
Reinstall the rectifier. If the alarm persists, replace the rectifier.
Restart the SMU. If the alarm persists, replace the SMU.
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.
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