Huawei NetCol5000-A025 - Page 229

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
Outdoo
r fan
drive
alarm
CRI
TIC
AL
Generates
an alarm
and shuts
down the
compressor.
1. The cables to
the outdoor fan
are loose or
damaged.
2. The outdoor fan
is faulty.
3. The outdoor fan
drive is faulty.
1. Check the cables to
the outdoor fan.
2. Maintain or replace
the outdoor fan.
3. Maintain or replace
the outdoor fan
drive.
a2
9
3
Outdoo
r fan
power
supply
abnorm
al
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
The power grid
voltage exceeds the
upper threshold.
Power o the smart
cooling product and
check that the power
grid input voltage
meets the
specications.
Outdoo
r fan
power
supply
abnorm
al
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
1. A power grid
input cable is
loose.
2. The power grid
voltage is below
the lower
threshold.
3. The outdoor fan
drive is faulty.
1. Secure the power
grid input cable.
2. Power o the
smart cooling
product and check
that the power grid
input voltage
meets the
specications.
3. Replace the
outdoor fan drive.
Outdoo
r fan
power
supply
abnorm
al
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
The power grid
frequency is
abnormal.
Power o the smart
cooling product and
verify that the input
power supply
frequency meets the
specications.
a2
9
4
Outdoo
r fan
drive
overcur
rent
alarm
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
1. The outdoor fan
is faulty.
2. The outdoor fan
drive is faulty.
1. Replace the
outdoor fan.
2. Replace the
outdoor fan drive.
a2
9
5
Outdoo
r fan
fault
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
The output cable to
the outdoor fan
drive is grounded.
Replace the output
cable to the outdoor
fan drive.
NetCol5000-A025 In-row Air Cooled Smart Cooling
Product
User Manual (300 mm Width) 6 System Operation and Maintenance
Issue 15 (2020-12-10) Copyright © Huawei Technologies Co., Ltd. 219