Huawei NetCol5000-A021 User Manual page 163

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a035 Power
underfreq
a037 Power phase
reverse
a038 Liquid pipe
temp sensor
fault
a039 Ctrl point
sensor disabled
a040 PSU 1/2 power
input failure
a041 Cond pump
fault
a042 Remote
shutdown
Issue 03 (2020-01-10)
Alarm Impact
Severity
Major The alarm is
generated, and
the system
shuts down.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Warning The alarm is
generated.
Major The humidifier
is shut down.
Critical The alarm is
generated, and
the system
shuts down.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
1. The power 1. Check the power supply
supply
frequency is too
2. Replace the SPD
low.
2. The SPD
three-phase test
board is faulty.
The phase Rectify the phase sequence of
sequence of the the power supply.
power supply is
incorrect.
1. Cables to the 1. Maintain or replace the
liquid pipe
temp sensor are
2. Check cables to the liquid
not properly
connected.
2. The liquid pipe
temp sensor is
faulty.
All the T/H sensors Enable the T/H sensors of the
of the control point control point or change the
are disabled. control point.
The power input Check the power input cables
cables of the PSU of the PSU.
are loose or
damaged.
1. Cables to the 1. Verify pump cable
water pump are
not properly
2. Replace the water pump.
connected.
3. Rectify the liquid level
2. The water
pump is faulty.
4. Remove foreign matter in
3. The water
pump races due
to a liquid level
detection fault.
4. The water
pump is
blocked.
1. The remote 1. Check the status of the
shutdown dry
contact is
triggered.
2. Check the cables to the
2. The cables to
the remote
shutdown dry
contact is
faulty.
frequency.
three-phase test board.
liquid pipe temp sensor.
pipe temp sensor.
connections.
detection fault.
the water pump.
remote shutdown dry
contact.
remote shutdown dry
contact.
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