Specifications

CNTR-42
CONTROLLER (Feb. 2009)
CONTROLLER
DATA U4
3. SYSTEM CONTROLLER
(1). External signal input function
External signal input requires the external I/O adapter (Model: PAC-YG10HA) sold separately.
1). External input
Emergency stop/normal, run/stop and prohibit/enable of local remote controller operation can be controlled for all air
conditioners being controlled by using a voltage (12VDC or 24VDC) contact signal from an external source.
(Select the function on the Initial Setting Web or the Initial Setting Tool)
No
1
2
3
4
External signal input function
Do not use external input signal
(factory setting)
Execute emergency stop/normal
with level signal
Perform ON/OFF with level signal
Perform ON/OFF, prohibit/enable
with pulse signals.
Remarks
The local remote controller ON/OFF operations, and the
controller ON/OFF operation and prohibit/enable change
operations will be prohibited during emergency stop.
The local remote controller ON/OFF operations, and the
controller ON/OFF operations and prohibit/enable change
operations will be prohibited.
Set the pulse width while the contact is ON to 0.5 to 1 sec.
3). External input specifications
CN2 Lead wire Emergency stop/normal level signal
ON/OFF, level signal ON/OFF, prohibit/enable pulse signal
No.5 Orange Emergency stop/normal input ON/OFF input ON input
No.6 Yellow Not used
Not used
OFF input
No.7 Blue
Not used
Not used
Local remote controller operation
prohibit input
No.8 Gray Not used
Not used
Local remote controller operation
enable input
No.9 Red External DC source
When the emergency stop/normal signal is selected, the status will change from normal to emergency stop when the
external input signal contact changes from OFF to ON, and will change from emergency stop to normal when the
contact changes from ON to OFF. Emergency stop signal will bring the air conditioners to stop, and canceling the
emergency stop will not automatically reset these units. To go back to the previous operation status, they must be
manually turned back on.
When the ON/OFF signal is selected, the status will change from OFF to ON when the external input signal contact
changes from OFF to ON, and will change from ON to OFF when the contact changes from ON to OFF.
(B) For pulse signal
Even if the ON signal is input during ON, the status will remain ON.
If the local remote controller is prohibited, the ON/OFF operation mode and temperature setting operations by the
local remote controller will be prohibited.
Set the pulse width (contact ON time) to 0.5 to 1 sec.
(A) For level signal
2). Level signal and pulse signal (12VDC or 24VDC)
(A) Level signal (B) Pulse signal
Contact ON
Contact OFF
Stop StopRun
(Example) for ON/OFF
Contact ON
Contact OFF
0.5 to 1 sec
Contact ON
Contact OFF
Normal
Normal
Emergency stop
OFF OFFON
Signal 1 (run)
Contact ON
Contact OFF
0.5 to 1 sec
Signal 2 (stop)
The prohibit/enable input is the same.
3-7-2. External input/output usage
CN2