Huawei NetCol8000-A Series User Manual page 162

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
Alarm Alarm
ID Name
a028 Power
phase A
overvolt
a029 Power
phase B
overvolt
a030 Power
phase C
overvolt
a031 Power
phase A
undervolt
a032 Power
phase B
undervolt
Issue 10 (2019-01-15)
Alarm Occurrence
Severit Conditions
y
generated.
Major The AC
voltage of
phase A is
greater than
the alarm
threshold, and
the alarm
detection
delay expires.
Major The AC
voltage of
phase B is
greater than
the alarm
threshold, and
the alarm
detection
delay expires.
Major The AC
voltage of
phase C is
greater than
the alarm
threshold, and
the alarm
detection
delay expires.
Major The AC
voltage of
phase A is
greater than 50
V and less
than the low
voltage alarm
threshold
when the
alarm
detection
delay expires.
Major The AC
voltage of
phase B is
greater than 50
V and less
than the low
voltage alarm
threshold
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
1. The power supply voltage
is higher than the power
overvolt alarm thres.
2. If a voltage jumper is used,
possibly it is incorrectly
connected.
3. If a toggle switch is used,
possibly it is incorrectly
set.
1. The power supply voltage
is higher than the power
overvolt alarm thres.
2. If a voltage jumper is used,
possibly it is incorrectly
connected.
3. If a toggle switch is used,
possibly it is incorrectly
set.
1. The power supply voltage
is higher than the power
overvolt alarm thres.
2. If a voltage jumper is used,
possibly it is incorrectly
connected.
3. If a toggle switch is used,
possibly it is incorrectly
set.
1. The power supply voltage
is lower than the power
overvolt alarm thres.
2. If a voltage jumper is used,
possibly it is incorrectly
connected.
3. If a toggle switch is used,
possibly it is incorrectly
set.
1. The power supply voltage
is lower than the power
overvolt alarm thres.
2. If a voltage jumper is used,
possibly it is incorrectly
connected.
3. If a toggle switch is used,
Solutions
1. Check the power
supply voltage.
2. Maintain or replace
the voltage jumper.
3. Correctly set the
toggle switch.
1. Check the power
supply voltage.
2. Maintain or replace
the voltage jumper.
3. Correctly set the
toggle switch.
1. Check the power
supply voltage.
2. Maintain or replace
the voltage jumper.
3. Correctly set the
toggle switch.
1. Check the power
supply voltage.
2. Maintain or replace
the voltage jumper.
3. Correctly set the
toggle switch.
1. Check the power
supply voltage.
2. Maintain or replace
the voltage jumper.
3. Correctly set the
toggle switch.
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