Mitsubishi Electric CITY MULTI PEFY-P22VMS-E-S Data Book page 254

3. System remote controller
2. External input/output usage
(1). External signal input function
External signal input requires the external I/O adapter (Model: PAC-YT41HAA) sold separately.
1). External input
External no-voltage contact signal can be used to send signals indicating the following status of all air conditioning units that
are controlled : Emergency stop/Normal, ON/OFF, and local remote controller operation Prohibit/Permit.
The above settings can be made using the external input setting on the Initial Setting screen accessed from the
Service Menu screen.
External signal input function
No
Do not use external input signal
1
(factory setting)
Execute emergency stop/normal
2
with level signal
Perform ON/OFF with level signal
3
Perform ON/OFF, prohibit/enable
4
with pulse signals.
2). Level signal and pulse signal
(A) Level signal
Contact ON
Contact OFF
Contact ON
Contact OFF
3). External input specifications
CN2 Lead wire
No.1 Green
No.2 Yellow
No.3 Orange
No.4 Red
No.5 Brown
(A) For level signal
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 0.2 to 1 sec.
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 0.2 to 1 sec.
OFF ON OFF
Emergency stop
Normal
Normal
Emergency stop/normal level signal
Built-in power supply for external input (DC5V)
Emergency stop/normal input
Not used
Not used
Not used
CONTROLLER
External input connector
External output connector
Remarks
(B) Pulse signal
(Example) for ON/OFF
Contact ON
Signal 1 (run)
Contact OFF
Contact ON
Signal 2 (stop)
Contact OFF
The prohibit/enable input is the same.
ON/OFF, level signal ON/OFF, prohibit/enable pulse signal
ON/OFF input ON input
Not used OFF input
Local remote controller operation
Not used
prohibit input
Local remote controller operation
Not used
enable input
C7-R Rev.
0.2 to 1 sec
0.2 to 1 sec
OFF ON OFF
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