Batt Under Temp; Batt Chg. Overcur; Load Loop Break - Huawei ETP4830-A1 User Manual

ETP4830-A1 Embedded Power
User Manual
3.

7.2.9 Batt Under Temp

Possible Causes
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Measures
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7.2.10 Batt Chg. Overcur.

Possible Causes
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Measures
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7.2.11 Load Loop Break

Possible Causes
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Measures
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Issue 10 (2017-08-08)
Check whether the battery temperature sensor is faulty. If yes, replace the temperature
sensor.
This alarm is generated only for the power system that has battery temperature sensor installed.
The battery undertemperature alarm threshold is not set properly on the SMU.
The battery temperature controlling system is faulty.
The battery temperature sensor is faulty.
Check whether the battery undertemperature alarm threshold (0° C by default) is properly
set. If no, adjust it to a proper value.
Check whether the battery temperature controlling system is faulty. If yes, rectify the
fault. The alarm is cleared when the battery temperature falls within the allowed range.
Check whether the battery temperature sensor is faulty. If yes, replace the temperature
sensor.
Rectifier communication is interrupted.
SMU connections are loose.
The SMU is faulty.
Check whether an alarm has been generated for interrupted rectifier communication. If
so, remove the rectifier, reinstall it, and check whether the alarm is cleared. If the alarm
still exists, replace the rectifier.
Remove the SMU, reinstall it, and check whether the alarm is cleared. If the alarm still
exists, replace the SMU.
The load circuit breaker has tripped or the load fuse has blown.
The load circuit breaker or the fuse detection cable is disconnected.
Check whether the load circuit breaker has tripped or the load fuse has blown. If so,
locate and rectify the circuit fault, and then switch on the circuit breaker or replace the
fuse.
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