Huawei NetCol8000-C User Manual page 241

NetCol8000-C(070-260) In-room Chilled Water Smart
Cooling Product
User Manual
Alarm ID Alarm Name
A281-08 Power voltage
abnormal
Backup power
voltage
abnormal
A281-10 Power voltage
abnormal
Issue 06 (2020-01-13)
Alarm Impact
Severity
Major
triggered, and
the smart
cooling product
is shut down
when the main
power or single
power is
supplied.
Major An alarm is
triggered, and
the smart
cooling product
is shut down
when the
standby power
is supplied.
Major An alarm is
triggered, and
the smart
cooling product
is shut down
when the main
power or single
power is
supplied.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible
Cause
board is
faulty.
1. The power
An alarm is
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
Solution
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
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