Blvd Disconnected; Batt Loop Trip; High Amb. Temp - Huawei TP48200A-HT19C4-1 User Manual

TP48200A-HT19C4-1 and TBC300A-TCA2 Telecom
Power
User Manual
3.

4.2.8 BLVD Disconnected

Possible Causes
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Measures
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4.2.9 Batt Loop Trip

Possible Causes
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Measures
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4.2.10 High Amb. Temp.

Possible Causes
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Issue 03 (2019-11-15)
Check whether the load disconnection voltage (44 V DC by default) has been set to a
very high value on the SMU. If so, adjust it to a normal value.
An AC power failure has occurred.
Batteries are manually disconnected.
The battery disconnection voltage has been set to a very high value on the SMU.
Check whether an AC power failure has occurred. If so, rectify the fault to restore the
AC power supply.
Check whether batteries are manually disconnected. If so, check with other maintenance
personnel whether the batteries can be reconnected.
Check whether the battery disconnection voltage (43 V DC by default) has been set to a
very high value on the SMU. If so, adjust it to a normal value.
The battery circuit breaker or fuse detection cable is loosely connected.
The battery circuit breaker has tripped or the battery fuse has blown.
The contactor is faulty.
Check whether the battery circuit breaker or fuse detection cable is loosely connected. If
so, reconnect the cable.
Check whether the battery circuit breaker has tripped or the battery fuse has blown. If so,
rectify the battery loop fault and then switch on the circuit breaker or replace the fuse.
Manually switch on or switch off the battery contactor and check whether the battery
current changes accordingly. If not, replace the contactor.
This alarm is generated only for the power system that has an ambient temperature sensor installed.
The high ambient temperature alarm threshold is incorrectly set.
The temperature control system is faulty in the cabinet where the ambient temperature
sensor is located.
The ambient temperature sensor is faulty.
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