Huawei NetCol8000-E220 User Manual page 160

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Alarm Alarm
ID Severity
A28E- CRITICA
20 L
A28F-
MAJOR
01
A28F- MAJOR
01
A28F- MAJOR
02
A28F-
MAJOR
02
A28F- MAJOR
04
Issue 02 (2019-10-10)
Alarm
Probable Cause
Name
poor.
4. The electric control box cavity is
dirty or blocked, and the module
heat exchange effect is poor.
5. The drive module is faulty.
Compressor 2 1. The fans in the compressor drive
drive alarm 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 electric control box cavity is
dirty or blocked, and the module
heat exchange effect is poor.
5. The drive module is faulty.
Compressor 1
1. The power supply voltage is low.
drive power
2. The compressor drive is faulty.
supply
3. The primary power supply is
abnormal
faulty or the cables to the
compressor drive are loose or
damaged.
Compressor 2 1. The power supply voltage is low.
drive power
2. The compressor drive is faulty.
supply
3. The primary power supply is
abnormal
faulty or the cables to the
compressor drive are loose or
damaged.
Compressor 1 1. The power supply voltage is
drive power high.
supply
2. The compressor drive is faulty.
abnormal
Compressor 2 1. The power supply voltage is
drive power high.
supply
2. The compressor drive is faulty.
abnormal
Compressor 1 1. The cables to phase U of the
drive power compressor drive are loose or
supply damaged.
abnormal
2. The compressor drive is faulty.
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6 System Operation and Maintenance
Solution
power-off.
5. Replace the drive module.
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.
3. Check the primary power
supply and the cable connection
to 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.
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.
1. Check the cables to the
compressor drive.
2. Maintain or replace the
compressor drive.
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