Huawei NetCol8000-E220 User Manual page 187

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A281
-04
A281
-08
A281
-08
A281
-10
Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Backup power
voltage
abnormal
MAJOR Power voltage
abnormal
MAJOR Backup power
voltage
abnormal
MAJOR Power voltage
abnormal
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The power supply
voltage is below the
lower threshold.
2. The cables to the
SPD and voltage
detection board are
loose or damaged.
3. The SPD and
voltage detection
board is faulty.
1. The power supply
voltage is below the
lower threshold.
2. The cables to the
SPD and voltage
detection board are
loose or damaged.
3. The SPD and
voltage detection
board is faulty.
1. The power supply
voltage is below the
lower threshold.
2. The cables to the
SPD and voltage
detection board are
loose or damaged.
3. The SPD and
voltage detection
board is faulty.
1. The power supply
voltage is below the
lower threshold.
2. The cables to the
SPD and voltage
detection board are
loose or damaged.
3. The SPD and
voltage detection
board is faulty.
Solution
1. Check that the
power supply voltage is
within the operating
range.
2. Check the cable
connection to the SPD
and voltage detection
board.
3. Replace the SPD and
voltage detection
board.
1. Check that the
power supply voltage is
within the operating
range.
2. Check the cable
connection to the SPD
and voltage detection
board.
3. Replace the SPD and
voltage detection
board.
1. Check that the
power supply voltage is
within the operating
range.
2. Check the cable
connection to the SPD
and voltage detection
board.
3. Replace the SPD and
voltage detection
board.
1. Check that the
power supply voltage is
within the operating
range.
2. Check the cable
connection to the SPD
and voltage detection
board.
3. Replace the SPD and
voltage detection
board.
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