Huawei TP48200A-D14A1 Telecom Power User Manual page 35

TP48200A-D14A1 Telecom Power
User Manual
Fault Type
Battery shutdown
Battery loop failure
Ambient
overtemperature or
undertemperature alarm
(The alarm is generated
only when the
temperature sensor is
installed.)
Ambient overhumidity
or underhumidity alarm
(The alarm is generated
only when the humidity
sensor is installed.)
Battery overtemperature
or undertemperature
alarm
Issue 04 (2019-12-20)
Fault Analysis
 Improper setting of
PMU battery
parameters

Contactor fault
 Battery loop fault
 Contactor fault
 Battery fault
 Improper setting of
PMU temperature
alarm parameters
 Overtemperature or
undertemperature in
the shelter with the
temperature sensor
 Temperature sensor
fault

Improper setting of
PMU humidity alarm
parameters
 Overhumidity or
underhumidity in the
shelter with the
humidity sensor
 Humidity sensor fault
 Battery cabin
overtemperature

Improper setting of
PMU battery
temperature alarm
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Handling Method
5. Check whether the load power is higher than the
configured rectifier module power. If the load power
is higher than the configured rectifier module power,
add a rectifier module. If the load power exceeds the
maximum supported power of the system, lower the
load power.
1. Check whether the mains supply is off or the voltage
of storage batteries is lower than the "Battery
Shutdown Voltage".
2. Check whether the battery shutdown permission is
set.
3. Check whether the battery cables or the connectors
are faulty. If the cables or connectors are faulty,
replace them.
4. Check whether the contactor is faulty and whether it
can be connected and disconnected. If the contactor
is faulty, replace it.
1. Check whether cables of the battery loop or
connectors are faulty. If the cables or connectors are
faulty, replace them.
2. Check whether the contactor is faulty and whether it
can be connected and disconnected. If the contactor
is faulty, replace it.
3. Check whether batteries are faulty. If the batteries are
faulty, replace them.
1. Check whether PMU temperature alarm thresholds
are set according to local conditions. If the thresholds
are not proper, set the thresholds accordingly.
2. Check whether the temperature control device in the
shelter is faulty. If the temperature control device is
faulty, repair it. The alarm is automatically cleared
when the temperature in the shelter is adjusted to the
proper range.
3. If the alarm persists when the temperature is proper,
check whether the temperature sensor is faulty.
1. Check whether PMU humidity alarm thresholds are
set according to local conditions. If the thresholds are
not proper, set the thresholds accordingly.
2. Check whether the floor of the shelter is wet. If the
floor is wet, use a cotton cloth to wipe the floor and
ensure it is dry or use other dehumidifiers.
3. If the alarm persists when the humidity is proper,
check whether the humidity sensor is faulty.
1. Check whether PMU battery temperature alarm
thresholds are properly set. If the thresholds are not
proper, set the thresholds accordingly.
2. Check whether the temperature in the battery room is
excessively high. If the temperature is excessively
high, the alarm can be cleared when the temperature
5 System Maintenance
29