- 24 -
10-1. External signal input function
* To use the external signal input, a separately-sold external input/output adapter (PAC-YG10HA) and external power supply
are required.
10-1-1. External input signal function setting (to be set from the web browser for Initial settings)
External contact signal (12VDC or 24VDC) can be used to send signals indicating the following status of all air conditioning units
that are controlled by the controller: Emergency stop/Normal, Run/Stop, and local remote controller operation Prohibit/Permit.
* DIDO controller (PAC-YG66DCA) cannot be collectively run or stopped by using the external input function. But when
[Emergency stop/Normal (Level signal)] is selected, DIDO controller (PAC-YG66DCA) can be collectively stopped by setting
the appropriate switches on the DIDO controller.
10-1-2. Level signals and pulse signals
(A) Level signals
(B) Pulse signal
10-1-3. External input specifications
(A) Level signals
1
If “Emergency stop/Normal operation signal” is selected, the unit will come to an emergency stop when the contact
turns on, and the unit will resume normal operation when the contact turns off. When emergency stop is reset, all units
will remain stopped, including the ones that were operating before the emergency stop signal input was received. To
return to the previous operation status, these units need to be manually restarted.
2
If “Run/Stop signal input” is selected, the unit will go into operation when external input signal contact turns ON, and the
unit will stop when the contact signal turns OFF.
10 External input/output
No.
External input signal function
Notes
1
External input signal will not be used.
(factory setting)
2
Emergency stop/Normal (level signal)
During the emergency stop, the Run/Stop mode cannot be changed from the
local remote controller, and the Run/Stop mode and Prohibit/Permit settings
cannot be changed from the GB-50ADA. Timer setting will be ignored.
3
Run/Stop (level signal)
The Run/Stop mode cannot be changed from the local remote controller,
and the Run/Stop mode and Prohibit/Permit settings cannot be changed
from the GB-50ADA. Timer setting will be ignored.
4
Run/Stop, Prohibit/Permit (pulse signal)
The pulse width (contact ON) should be between 0.5 and 1 second.
CN5
Lead wire
(PAC-YG10HA)
Emergency stop/Normal
(level signal)
Run/Stop
(level signal)
Run/Stop, Prohibit/Permit
(pulse signal)
No. 5
Orange
Emergency stop/Normal
signal input
Run/Stop signal input
Operation signal input
No. 6
Yellow
Not used
Not used
Stop signal input
No. 7
Blue
Not used
Not used
Local remote controller operation
prohibit signal input
No. 8
Gray
Not used
Not used
Local remote controller operation
permit signal input
No. 9
Red
External power supply 12VDC or 24VDC
MODEL :
Serial number :
External input/output terminal (CN5)
(Example) Run/Stop
Signal 1 (Run)
Signal 2 (Stop)
Contact ON
Contact OFF
Contact ON
Contact OFF
0.5 - 1 second
0.5 - 1 second
Stop
Stop
Emergency stop
Contact ON
Contact OFF
Contact ON
Contact OFF
Normal
Normal
Emergency
stop
Stop
Stop
Run
* Same with the Prohibit/Permit signal input.
