Huawei NetCol5000-A050 User Manual page 245

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual
Alarm
ID
A28E-2
0
A28F-0
2
A28F-0
1
Issue 08 (2021-09-17)
Alarm Name Alar
m
Seve
rity
Compressor MAJ
drive alarm OR
Compressor MAJ
drive power OR
supply
abnormal
Compressor MAJ
drive power OR
supply
abnormal
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
1. The fans in the
compressor drive
are faulty.
2. The air vents of
the fans in the
compressor drive
are dirty or
blocked.
3. The compressor
drive heat sink is
dirty, so the heat
exchange effect is
poor.
4. The Elec control
box cavity is dirty
or blocked, and
the module heat
exchange effect is
poor.
5. The drive
module is faulty.
1. The power
supply voltage is
high.
2. The compressor
drive is faulty.
1. The power
supply voltage is
low.
2. The compressor
drive is faulty.
3. The primary
power supply is
faulty or the
cables to the
compressor drive
are loose or
damaged.
9 Alarm Reference
Solution
1. Check the fans in the
compressor drive.
2. Clean the air vents of
the fans in the
compressor drive.
3. Clean the heat sink
after power-off.
4. Clean the cavity after
power-off.
5. Replace the drive
module.
1. Check the power
supply voltage.
2. Maintain or replace
the compressor drive.
1. Check the power
supply voltage.
2. Maintain or replace
the compressor drive.
3. Check the primary
power supply and the
cable connection to the
compressor drive.
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