Huawei FusionCol8000-E240 User Manual page 178

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A280-01 Power frequency
abnormal
Backup power
frequency abnormal
Auxiliary cooling
power frequency
abnormal
Auxiliary cooling
backup power
frequency abnormal
A280-02 Power frequency
abnormal
Backup power
frequency abnormal
Auxiliary cooling
power frequency
abnormal
Auxiliary cooling
backup power
frequency abnormal
A281-04 Power voltage
abnormal
A281-08
Backup power voltage
A281-10
abnormal
Auxiliary cooling
power voltage
abnormal
Auxiliary cooling
backup power voltage
abnormal
A281-20 Power voltage
abnormal
A281-40
Backup power voltage
A281-80
abnormal
Auxiliary cooling
power voltage
abnormal
Auxiliary cooling
backup power voltage
abnormal
Issue 02 (2021-04-15)
Alarm
Severity
Major
Major
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The power supply
frequency is below
the lower
threshold.
● The SPD and
voltage detection
board is faulty.
● The power supply
frequency exceeds
the upper
threshold.
● The SPD and
voltage detection
board is faulty.
● The power supply
voltage is below
the lower
threshold.
● The cables to the
SPD and voltage
detection board are
loose or damaged.
● The SPD and
voltage detection
board is faulty.
● The power supply
voltage exceeds the
upper threshold.
● The SPD and
voltage detection
board is faulty.
8 System Maintenance
Solution
1. Check the power
supply frequency,
and ensure that it
is within the
working range.
2. Replace the SPD
and voltage
detection board.
1. Check the power
supply frequency,
and ensure that it
is within the
working range.
2. 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. Replace the SPD
and voltage
detection board.
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