Huawei NetCol5000-A025 - Page 227

Al
ar
m
ID
Alarm
Name
Ala
rm
Sev
erit
y
Impact Possible Causes Solution
Compre
ssor
drive
power
supply
abnorm
al
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
1. The cables to
phase U/V/W of
the compressor
drive are loose
or damaged.
2. The compressor
drive is faulty.
1. Check the cables to
the compressor
drive.
2. Maintain or replace
the compressor
drive.
a2
9
1
Compre
ssor
overcur
rent
alarm
MA
JOR
Generates
an alarm
and shuts
down the
compressor.
1. The compressor
lacks oil.
2. The condenser
ns are dirty or
blocked.
3. The outdoor fan
is abnormal.
4. The refrigerant
is
overlled.
5. The compressor
is faulty.
1. Fill oil to the
compressor.
2. Clean the
condenser ns.
3. Maintain or replace
the outdoor fan.
4. Decrease certain
amount of
refrigerant.
5. Maintain or replace
the compressor.
a2
9
2
Outdoo
r fan
drive
alarm
CRI
TIC
AL
Generates
an alarm
and shuts
down the
compressor.
1. The output cable
to the outdoor
fan drive is
short-circuited
or grounded.
2. The power grid
voltage exceeds
the upper
threshold.
3. The outdoor fan
is faulty.
4. The outdoor fan
drive is faulty.
1. Replace the output
cable to the
outdoor fan drive.
2. Power o the
smart cooling
product and check
that the power grid
input voltage
meets the
specications.
3. Replace the
outdoor fan.
4. Replace the
outdoor fan drive.
Outdoo
r fan
drive
alarm
CRI
TIC
AL
Generates
an alarm
and shuts
down the
compressor.
EEPROM read/write
fails.
Power o the smart
cooling product and
power it on 10
seconds later. If the
alarm persists, replace
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. 217