Huawei NetCol5000-A021 User Manual page 183

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a152 Outdoor fan
driver fault
a153 Outdoor fan Dr
DC bus
undervol
a154 Outdoor fan Dr
DC bus
overvolt
a155 Inverter power
module
overtemp
a156 Inverter output
U overcurrent
a157 Inverter output
V overcurrent
Issue 03 (2020-01-10)
Alarm Impact
Severity
Warning The alarm is
generated.
Major The
compressor is
shut down.
Major The
compressor is
shut down.
Major The
compressor is
shut down.
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
voltage meets specifications.
the lower
threshold.
1. A cable of the 1. Secure the cables
fan is loose or
disconnected.
2. Clear obstacles in the fan.
2. The fan is
3. Replace the fan.
blocked.
3. The fan is
faulty.
1. A power grid 1. Secure the power grid
input cable is
loose.
2. Power off the driver and
2. The power grid
voltage is
below the lower
threshold.
The power grid Power off the driver and
voltage exceeds the verify that the supply voltage
upper threshold. meets specifications.
1. The fan is 1. Replace the fan.
faulty.
2. Power off and power on
2. The ambient
temperature
exceeds the
upper threshold.
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.
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.
connected to fan terminals.
input cable.
verify that the supply
voltage meets
specifications.
after the ambient
temperature drops to a
proper level.
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.
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.
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