Huawei NetCol5000-A User Manual page 144

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
Alarm
Alarm
ID
Air filter
a026
exceed
runtime
a027 Power loss Warning
Power
a028
phase A
overvolt
Power
a029
phase B
overvolt
a030 Power
phase C
overvolt
a031 Power
phase A
undervolt
a032 Power
phase B
undervolt
Issue 01 (2017-07-27)
Alarm
Impact
Severity
The alarm
Warning
is
generated.
The alarm
is
generated.
The alarm
Major
is
generated,
and the
system
shuts
down.
The alarm
Major
is
generated,
and the
system
shuts
down.
Major The alarm
is
generated,
and the
system
shuts
down.
Major The alarm
is
generated,
and the
system
shuts
down.
Major The alarm
is
generated,
and the
system
shuts
down.
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Possible Cause
switch is blocked or
disconnected.
5. The cables to the
differential press switch
are loose or damaged.
The accumulated runtime of
the air filters exceeds the
alarm set point.
The supply power is cut off.
1. The power supply voltage
is too high.
2. The SPD three-phase test
board is faulty.
1. The power supply voltage
is too high.
2. The SPD three-phase test
board is faulty.
1. The power supply voltage
is too high.
2. The SPD three-phase test
board is faulty.
1. The power supply voltage
is too low.
2. The SPD three-phase test
board cable is not
properly connected.
3. The SPD three-phase test
board is faulty.
1. The power supply voltage
is too low.
2. The SPD three-phase test
board cable is not
properly connected.
3. The SPD three-phase test
board is faulty.
5 Operation and Maintenance
Solution
5. Check the cables to the
differential press switch.
Maintain or replace the air
filters. Tap Maint >
Performance Maint to clear
the accumulated runtime.
Check the power supply
cables.
1. Check the power supply
voltage, Ensure that the
voltage is within the
operating range.
2. Replace the SPD
three-phase test board.
1. Check the power supply
voltage, Ensure that the
voltage is within the
operating range.
2. Replace the SPD
three-phase test board.
1. Check the power supply
voltage, Ensure that the
voltage is within the
operating range.
2. Replace the SPD
three-phase test board.
1. Check the power supply
voltage.
2. Check the cable
connection to the SPD
three-phase test board.
3. Replace the SPD
three-phase test board.
1. Check the power supply
voltage.
2. Check the cable
connection to the SPD
three-phase test board.
3. Replace the SPD
three-phase test board.
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