Huawei FusionCol8000-E240 User Manual page 193

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A30D-01 Certificate is not in
effect
A30E-01 Certificate has expired
A30E-02
A30E-04
A30F-01 Air-side differential
pressure sensor
communication failure
A361-01 Spray pump 1 drive
alarm
Spray pump 2 drive
alarm
Issue 02 (2021-04-15)
Alarm
Severity
Warning
Warning
Major
Major
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● The installed
certificate does not
take effect.
● The connection of
the corresponding
certificate server is
abnormal.
● The corresponding
certificate is not
within the validity
period.
● The corresponding
certificate has
expired.
● The system time is
incorrectly set.
● The differential
pressure sensor
cable is loose or
damaged.
● The DIP switch of
the differential
pressure sensor is
set incorrectly.
● The differential
pressure sensor is
faulty.
● The
communications
port of the main
control board is
faulty.
● The spray pump
drive is faulty.
● The cables to the
spray pump drive
are loose or
damaged.
● The spray pump is
faulty.
8 System Maintenance
Solution
1. Ensure that the
certificate is
correctly installed.
2. Ensure that the
connection of the
certificate server is
normal.
3. Ensure that the
installed certificate
is within the
validity period.
1. Apply for a new
certificate promptly
and update the
existing one.
2. Calibrate the
system time.
1. Check the cable
connection to the
differential pressure
sensor.
2. Set the DIP switch
of the differential
pressure sensor
correctly.
3. Maintain or replace
the differential
pressure sensor.
4. Maintain or replace
the main control
board.
1. Maintain or replace
the spray pump
drive.
2. Check the cables to
the spray pump
drive.
3. Maintain or replace
the spray pump.
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