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NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm
Alarm Name
ID
a158
Inverter output
W overcurrent
a159
Outdoor fan Dr.
sampling drift
a160
Outdoor fan Dr
OP ground fault
a161
Outdoor fan
output current
Imb
a162
Outdoor fan
pres sensor
fault
a163
Outdoor fan
overtemp
a164
High temp in
outdoor fan Dr
a165
Outdoor fan
power freq error
a166
Outdoor fan
driver fault
Issue 03 (2020-01-10)
Alarm
Impact
Severity
Major
The alarm is
generated.
Major
The
compressor is
shut down.
Major
The
compressor is
shut down.
Major
The
compressor is
shut down.
Warning
The alarm is
generated.
Major
The
compressor is
shut down.
Warning
The alarm is
generated.
Major
The
compressor is
shut down.
Major
The
compressor is
shut down.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
Solution
1. The driver
1. Cut off the three-phase
output cable is
grounded.
2. The driver
output cable is
short-circuited.
2. Cut off the three-phase
3. The fan is
faulty.
3. Replace the fan.
The sampling
Replace the fan driver.
circuit is faulty.
The driver output
Cut off the three-phase power
cable is
supply and check whether the
short-circuited or
driver output cable is faulty or
grounded.
grounded.
The fan
Check whether the fan is
three-phase loads
faulty.
are imbalanced.
1. A cable of the
1. Secure the pressure sensor
pressure sensor
is loose.
2. Replace the pressure
2. The pressure
sensor is faulty.
1. The fan
1.
overtemperatur
e feedback
cable is loose.
2. The outdoor
2. Clean the fan and remove
unit is dirty and
blocked.
3.
The fan is
3. Replace the fan.
faulty.
Honeycomb holes
Clean the honeycomb holes
using a brush.
in the driver rear
panel are dirty or
blocked.
The power grid
Power off the driver and
freq is abnormal.
verify that the supply freq
meets specifications.
The fan driver has
Clear the major alarm for the
driver.
generated a major
alarm.
power supply and check
whether the driver output
cable is grounded. See
a145 handling methods.
power supply and check
whether the driver output
cable is faulty. See the
a145 handling methods.
terminals.
sensor.
Secure the cable
connected to the fan
overtemperature feedback
terminal.
obstacles to ensure that the
fan works properly.
176
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