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(3) External input specifications
CN2 Lead wire Emergency stop/normal level signal
No.5 Orange
Emergency stop/normal input
No.6 Yellow
Not used
No.7 Blue
Not used
No.8 Gray
Not used
No.9 Red
External DC source "+"
(A) For level signal
1 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.
2 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
1 Even if the ON signal is input during ON, the status will remain ON.
2 If the local remote controller is prohibited, the ON/OFF operation mode and temperature setting operations by the local
remote controller will be prohibited.
3 Set the pulse width (contact ON time) to 0.5 to 1 sec.
(4) Recommended circuit example
(A) For level signal
CN2
This unit
1 The contact relay, DC power source, extension cable, etc., must be prepared separately at the site.
2 The connection cable can be extended up to 10m. (Use a 0.3mm
3 Strip the extra cable near the connector, and securely insulate the exposed section with tape, etc.
2. External signal output function
* External signal output requires the external I/o adapter (Model: PAC-YG10HA-E) sold separately.
(1) External output
When one or more air conditioners are running, the "ON" signal will be output and if a malfunction occurs in one or more air
conditioners, the "Malfunction" signal will be shown.
(2) External output specifications
CN 2
Lead wire
No.1
Green
Common (External ground)
No.2
Black
ON/OFF
No.3
Brown
Malfunction/normal
No.9
Red
Common (External power supply) (*1)
(3) Recommended circuit example
CN2
Black
Brown
Green
Max.10m
This unit
1 Each element will turn on while ON operation or a malfunction occurs.
2 The connection cable can be extended up to 10m.
3 The relays, lamps, diodes and extension cables, etc, must be prepared separately at the site.
Red
9
X1
X1
Orange
5
Run/stop or
6
Emergency stop
7
8
Power supply(*1)
(DC12V or DC24V)
Max.10m
Details of each terminal
Diode(*2)
Z1
Z2
Power (*1)
Supply
L1:Run display lamp
L2:Malfunction display lamp
ON/OFF, level signal
ON/OFF input
ON input
Not used
OFF input
Not used
Local remote controller operation prohibit input
Not used
Local remote controller operation enable input
CN2
Red
9
Orange
5
Yellow
6
Blue
7
Purple
8
Max.10m
This unit
2
or larger wire.)
1 "ON" signal and "Malfunction" signal will both be shown.
Use Z1 and Z2 relays having the following specifications.
Operation coil
Rated voltage
Power Consumption : 0.9W or less
(*1) Prepare a power supply separately according to the relay
being used. (DC12V or DC24V)
(*2) Always insert a diode on both ends of the relay coil.
– 8 –
ON/OFF, prohibit/enable pulse signal
Power supply(*1)
(DC12V or DC24V)
X1
Run
X1
X2
Stop
X2
Y1
Prohibit
Y1
Enable
Y2
Y2
:DC12V,DC24V
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