Door Alarm; Rectifier Missing - Huawei Telecom Power TP48200A-DX12A1 User Manual

TP48200A-DX12A1 Telecom Power
User Manual
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Measures
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4.2.12 Door Alarm

Possible Causes
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Measures
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4.2.13 Rectifier Missing

Possible Causes
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Issue 07 (2019-11-15)
The battery temperature sensor is faulty.
Check whether the low battery temperature alarm threshold (-10° C by default) is
correctly set. If not, set the threshold to the correct value.
Check whether the temperature control system for the battery compartment is faulty. If
so, rectify the fault. The alarm is cleared when the temperature in the battery
compartment becomes normal.
Check whether the battery temperature sensor is faulty. If so, replace the battery
temperature sensor.
This alarm is generated only for the power system that has door status sensor installed.
The cabinet doors are open.
The door status sensor is faulty.
Close cabinet doors.
Check whether the door status sensor is faulty. If yes, replace the door status sensor.
Rectifiers are not powered on.
Rectifiers are faulty.
The subrack or slot connectors are faulty.
The SMU is faulty.
Check whether rectifier circuit breakers are ON. If not, switch them on.
Check whether rectifiers are removed. If so, confirm the reason and reinstall them.
Replace faulty rectifiers.
Check whether rectifiers in the rectifier subrack do not work. If so, remove these
rectifiers and check whether their slot connectors are damaged. If the connectors are
damaged, repair or replace the slot connectors or the entire subrack.
If the alarm persists after the preceding measures are taken and the SMU is restarted,
replace the SMU.
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