Huawei NetCol8000-C User Manual page 183

NetCol8000-C(070-260) In-room Chilled Water Smart
Cooling Product
User Manual
Alar Alarm
m ID Name
a029 Power BC
overvoltage
a030 Power CA
overvoltage
a031 Power AB
undervoltag
e
a032 Power BC
undervoltag
e
a033 Power CA
undervoltag
e
a034 Power
overfreq
Issue 06 (2020-01-13)
Alarm Impact
Severi
ty
system is
shut down.
Major An alarm is
triggered,
and the
system is
shut down.
Major An alarm is
triggered,
and the
system is
shut down.
Major An alarm is
triggered,
and the
system is
shut down.
Major An alarm is
triggered,
and the
system is
shut down.
Major An alarm is
triggered,
and the
system is
shut down.
Major An alarm is
triggered,
and the
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
2. The SPD three-phase
detection board is faulty.
1. The power supply voltage
exceeds the upper
threshold.
2. The SPD three-phase
detection board is faulty.
1. The power supply voltage
exceeds the upper
threshold.
2. The SPD three-phase
detection board is faulty.
1. The power supply voltage is
below the lower threshold.
2. The cables to the SPD
three-phase detection board
are loose or damaged.
3. The SPD three-phase
detection board is faulty.
1. The power supply voltage is
below the lower threshold.
2. The cables to the SPD
three-phase detection board
are loose or damaged.
3. The SPD three-phase
detection board is faulty.
1. The power supply voltage is
below the lower threshold.
2. The cables to the SPD
three-phase detection board
are loose or damaged.
3. The SPD three-phase
detection board is faulty.
1. The power supply
frequency exceeds the
upper threshold.
6 System Operation and Maintenance
Solution
range.
2. Replace the SPD
three-phase detection
board.
1. Check the power
supply voltage, and
ensure that the voltage
is within the operating
range.
2. Replace the SPD
three-phase detection
board.
1. Check the power
supply voltage, and
ensure that the voltage
is within the operating
range.
2. Replace the SPD
three-phase detection
board.
1. Check the power
supply voltage.
2. Check the cables to
the SPD three-phase
detection board.
3. Replace the SPD
three-phase detection
board.
1. Check the power
supply voltage.
2. Check the cables to
the SPD three-phase
detection board.
3. Replace the SPD
three-phase detection
board.
1. Check the power
supply voltage.
2. Check the cables to
the SPD three-phase
detection board.
3. Replace the SPD
three-phase detection
board.
1. Check the power
supply frequency, and
ensure that it is within
175