Huawei NetCol5000-A021 User Manual page 169

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a064 Comp drive
lock
a065 Comp drive DC
overvolt
a066 Comp drive DC
undervolt
a067 Comp drive
overload
a068 Comp drive
overcurrent
Issue 03 (2020-01-10)
Alarm Impact
Severity
compressor
responds to
system
requirements
10s after the
communication
failure alarm is
cleared).
Critical The alarm is
generated, and
the compressor
is shut down.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
driver is faulty.
3. The air switch
of comp driver
is off.
The comp shuts Check whether other alarms of
down due to the the comp driver are generated.
driver fault for
NOTE
multiple times.
1. The power 1. Check the power supply
supply voltage
is high.
2. Maintain or replace the
2. The comp
driver is faulty.
3. Maintain or replace the
3. The comp is
faulty.
1. The power 1. Check the power supply
supply voltage
is low.
2. Maintain or replace the
2. The comp
driver is faulty.
3. Maintain or replace the
3. The comp is
faulty.
4. Reconnect the main power
4. The main
power supply is
faulty or the
cables to the
comp driver are
loose or
damaged.
1. The comp is in 1. Fill oil to the comp.
lack of oil.
2. Clean the condenser fins.
2. The condenser
3. Maintain or replace the
fins are
blocked.
4. Decrease certain amount of
3. The outdoor
units do not run
5. Maintain or replace the
properly.
4. The refrigerant
is overfilled.
5. The comp is
faulty.
1. The comp is in 1. Fill oil to the comp.
lack of oil.
2. Clean the condenser fins.
comp driver.
After the alarm is rectified, click
Manual clear on the alarm page.
voltage.
comp driver.
comp.
voltage.
comp driver.
comp.
supply or the cables to the
comp driver.
outdoor units.
refrigerant.
comp.
161