Huawei NetCol5000-C - Page 121

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
6 System Operation and Maintenance
Issue 02 (2013-12-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
113
Alarm
ID
Alarm Name
Severity
System
Operation
Possible Causes
Recovery Measures
a110
Cold aisle
1/2/3 T/H brd
comm fail
Major
The alarm is
generated.
1. The DIP switch is
incorrectly set for the
ambient T/H sensor.
2. The communications
cables to the ambient
T/H sensor are loose
or damaged.
3. The ambient T/H
sensor is faulty.
1. Correctly set the
DIP switch for the
ambient T/H sensor,
as shown in 3.13.5
Installing the
Humidity and
Temperature Sensor.
2. Make sure the
communication
cables to the T/H
sensor is connected
properly.
3. Maintain or replace
the ambient T/H
sensor.
a111
Hot aisle 1/2/3
temp invalid
Major
The alarm is
generated.
1. The ambient T/H
sensor fails to
communicate with
the NetCol5000-A.
2. Dirt or water exists
around the board,
which leads to a
detection fault.
3. The ambient T/H
sensor is faulty.
1. Clear the return-air 2
T/H brd comm fail
alarm.
2. Remove dirt or
water from the
board.
3. Maintain or replace
the ambient T/H
sensor.
a112
Hot aisle 1/2/3
humid invalid
Major
The alarm is
generated.
1. The ambient T/H
sensor fails to
communicate with
the NetCol5000-A.
2. Dirt or water exists
around the board,
which leads to a
detection fault.
3. The ambient T/H
sensor is faulty.
1. Clear the return-air 2
T/H brd comm fail
alarm.
2. Remove dirt or
water from the
board.
3. Maintain or replace
the ambient T/H
sensor.
a113
Hot aisle 1/2/3
T/H brd
comm fail
Major
The alarm is
generated.
1. The DIP switch is
incorrectly set for the
ambient T/H sensor.
2. The communications
cables to the ambient
T/H sensor are loose
or damaged.
3. The ambient T/H
sensor is faulty.
1. Correctly set the
DIP switch for the
ambient T/H sensor,
as shown in 3.13.5
Installing the
Humidity and
Temperature Sensor.
2. Make sure the
communication
cables to the T/H
sensor is connected
properly.
3. Maintain or replace
the ambient T/H