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Other faults
No.
Description
1
Nothing is displayed on
the Touch Screen
Controller screen.
2
Remote controller does
not work. (Central
control in progress)
3
Remote controller does
not work. (Operation
switchover control in
progress)
4
Scheduled operation of
air conditioners is
disabled.
5
Air conditioner stops
(out of control).
6
Energy monitoring and
billing result is
incorrect.
Fault judgment by Intelligent Server
No.
Indication
1
An LED other than
"RN" LED at the upper
left is lighting or
flashing after 10
minutes passed from
power on of Intelligent
Server.
Faults of TCS-Net Relay Interface
No.
Indication
1
LED2 (green) does not
light.
(RS-485 communication
error)
2
LED3 (orange) does
not light.
Possible causes
Touch Screen Controller is not powered on.
Backlight turns off automatically due to no
touch-screen operation for 10 minutes.
Malfunction of Touch Screen Controller.
Air Conditioning Control System
malfunctioned or stopped after local
prohibition is set by the system.
Operation mode range selection is set by
the Air Conditioning Control System.
Air Conditioning Control System is not
working.
Scheduled operation is not set or non-
operation date/special day setting is not
updated. (The setting must be updated
every year.)
Scheduled operation is not set correctly.
Incorrect input of door-lock signal.
Improper connection between power meter
and BMS-IFWH3E.
Charging schedule is not set correctly.
Non-operation date/special day setting is
not updated. (The setting must be updated
every year.)
Possible causes
No Relay Interface is powered on.
Communication with any Relay Interface
fails due to improper RS-485 connection or
disconnection of connector.
Malfunction of Intelligent Server.
Possible causes
Intelligent Server is not powered on.
Improper RS-485 connection or
disconnection of connector.
Improper connection of Main BUS due to
disconnection or lack of terminating
resistors, etc.
102
Remedy
Power on the Touch Screen Controller.
Touch the Touch Screen
Controller screen.
Power off and on the Touch
Screen Controller.
Power off and on the air
conditioner.
Check the operation mode range
selection setting, and correct it if
wrong.
Power on the equipment of the
system.
Perform setting for scheduled
operation.
Check the scheduled operation
setting, and correct it if wrong.
Correct the signal connection.
Correct the connection.
Check the charging schedule
setting, and correct it if wrong.
Remedy
Check whether every Relay
Interface is powered on (shown by
LED1 lighting red), and turn on
them if powered off.
Correct the connection.
Power off and on the Intelligent
Server.
Remedy
Power on the Intelligent Server.
Correct the connection.
Correct the connection.
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