External Output Signal Function - Mitsubishi Electric G-50A Technical Manual

(4) Recommended circuit example
(A)Level signal
1
Orange
5
6
7
8
Red
9
CN2
Maximally
G-50A
10m
* Special local arrangements are required for the relay, DC power supply (DC 12V, or DC 24V), and extension cables, etc.
* Please limit extension of the connection cable to 10 meters. (Please use cables of 0.3mm
* Please cut off any unused cable close to the connectors and be sure to insulate the cut parts using tape, etc.
When using this device to start/stop or emergency stop the external input level, an
Notice
operation prohibition setting for the local remote controller is transmitted regardless of
whether function selection No. 4 is set for enabled or disabled of the prohibition setting.
Consequently, when using this device for start/stop or emergency stop of the external
input level, please do not perform any operation prohibition settings involving other
system controllers.

5.2.2 External output signal function

(1) External output
When at least one air conditioning unit is operating, a [Abnormality occurrence] signal is output when
abnormalities occur in at least one air conditioning unit.
(2) External input interface specifications
The external input interface specifications are outlined in Table 5-4.
Even during an [Abnormality occurrence], the [Operating] signal is output.
CN2 Lead wire
No. 1 Green
No. 2 Black
No. 3 Brown
(3) Recommended circuit example
Green
1
Black
2
Brown
3
4
CN2
Maximally
G-50A
Local arrangement board
10m
* For the relays (X1, X2), please use those with the following specifications.
* Operating coil: DC 12V, DC 24V, power consumption: 0.9W or less
* Please make special arrangement to adjust the DC power supply to DC 12V or DC 24V depending on the relay used.
* Please be sure to use diodes at both ends of the relay coil.
* Please limit extension of the connection cable to 10 meters. (Please use cables of 0.3mm
* Please cut off any unused cable close to the connectors and be sure to insulate the cut parts using tape, etc.
26
Start/stop and
emergency stop
X1
X1
DC power supply
Local arrangement board
Table 5-4 External input interface specifications
External output common ground (external DC power supply ground)
DC power supply
D1
X1
X1
X2
X2
D2
(B)Pulse signal
1
Orange
5
Yellow
6
Blue
7
Gray
8
Red
9
CN2
G-50A
Maximally
10m
Details of each terminal
Start/stop
Irregular/regular
L1
L2
X1
X1
X2
X2
X3
X3
X4
X4
DC power supply
Local arrangement board
2
or more)
2
or more)
Operation
Stop
Prohibition
Permission