Batt Over Curr; Load Fuse Break; Batt Loop Trip - Huawei ETP4830-A1 User Manual

ETP4830-A1
User Manual
Possible Causes



Measures
1.
2.
3.

7.2.10 Batt Over Curr

Possible Causes



Measures
1.
2.

7.2.11 Load Fuse Break

Possible Causes


Measures
1.
2.

7.2.12 Batt Loop Trip

Possible Causes


Issue 06 (2014-02-20)
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.
The rectifier communication is interrupted.
Poor contact of the SMU.
The SMU is faulty.
Check whether an alarm is generated for rectifier communication interruption. If yes,
remove the rectifier and reinstall it to check whether the alarm is cleared. If the alarm
still exists, replace the rectifier.
Remove the SMU and reinstall it to check whether the alarm is cleared. If the alarm still
exists, replace the SMU.
The load circuit breaker trips or fuse is blown.
The load circuit breaker trips or fuse detection cable is disconnected.
Check whether the load circuit breaker trips or fuse is blown. If yes, rectify the back-end
circuit fault and then switch on the circuit breaker or replace the fuse.
Check whether the load circuit breaker trips or fuse detection cable is disconnected. If
yes, reconnect the cable.
The battery circuit breaker trips or battery fuse detection cable is disconnected.
The battery circuit breaker trips or battery fuse is blown.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7 Maintenance
45