Huawei NetCol5000-A021 User Manual page 166

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a051 Hot-aisle HT
a052 Supply-air 1/2
temp invalid
a053 PSU 1/2 fault
a054 PSU 1/2 comm
interrupt
Issue 03 (2020-01-10)
Alarm Impact
Severity
Critical The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
3. The cold-aisle 4. Calibrate or replace the
HT alarm
threshold is
5. Add more smart cooling
inappropriate.
4. The temp
displayed is
different from
the actual temp.
5. The load is high
or the
refrigeration
capacity is
insufficient.
1. The cold-aisle 1. Adjust the position of the
T/H sensors are
located in
2. Check other causes if the
inappropriate
position.
3. Adjust the supply-air HT
2. The ambient
temp is high.
4. Calibrate or replace the
3. The cold-aisle
HT alarm
5. Add more smart cooling
threshold is
inappropriate.
4. The temp
displayed is
different from
the actual temp.
5. The load is high
or the
refrigeration
capacity is
insufficient.
1. The cables to 1. Check the cables to the
the temp sensor
are loose or
2. Maintain or replace the
damaged.
2. The temp
sensor is faulty.
The PSU is faulty. Maintain or replace the PSU.
1. The 1. Check the communication
communication
cables of the
2. Maintain or replace the
PSU are faulty.
2. The PSU is
3. Maintain or replace the
faulty.
3. The
communication
abnormal sensors.
product units.
cold-aisle T/H sensors.
alarm persists after startup.
alarm threshold.
abnormal sensors.
product units.
temp sensor.
temp sensor.
cables of the PSU.
PSU.
control board.
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