Huawei NetCol8000-C070 User Manual page 159

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Alar
m ID
A282
Issue 02 (2020-08-30)
Alarm Alarm Possible Cause
Name Severi
ty
Power Major 1. The power supply
voltage voltage is below the
abnormal 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.
Backup Major 1. The power supply
power voltage exceeds the
voltage upper threshold.
abnormal
2. The voltage detection
board is faulty.
Backup Major 1. The power supply
power voltage is below the
voltage lower threshold.
abnormal
2. The cables to the
voltage detection board
are loose or damaged.
3. The voltage detection
board is faulty.
Power Major 1. The power grid is
phase unstable.
sequence
2. The SPD and voltage
abnormal
detection board may be
faulty if it is configured.
Backup Major 1. The power grid is
power unstable.
phase
2. The voltage detection
sequence
board may be faulty if it
abnormal
is configured.
3. The cables to the
primary power supply is
loose or damaged.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
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. Replace the voltage
detection board.
1. Check that the
power supply voltage
is within the operating
range.
2. Check the cable
connection to the
voltage detection
board.
3. Replace the voltage
detection board.
1. Check the power
grid.
2. Maintain or replace
the SPD and voltage
detection board.
1. Check the power
grid.
2. Maintain or replace
the voltage detection
board.
3. Check the cable
connection to the
primary power supply.
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