Omron SmartSlice GRT1 Series

77
Digital I/O Units Section 4-6
If the Unit connected on the left needs to be isolated, wire using the GRT1-
PD8-1 I/O Power Feed Unit. When using the GRT1-PD8-1 I/O Power Feed
Unit, however, a maximum of seven sensors can be connected, as shown in
the following figure.
When connecting 2-wire sensors, wire using the GRT1-PC8 I/O Power Con-
nection Unit as shown in the following figure. A single Power Supply Unit can
be connected to up to two GRT1-ID8-1 Units.
If you are connecting 2-wire sensors, you can use dual-insert rod terminals to
eliminate the need for a Power Connection Unit.
Note Wire colors in parentheses are the previous JIS colors for photoelectric and
proximity sensors.
GRT1-ID8-1GRT1-PD8-1
V
2
V
6
0
4
7
V
3
V
1
5
G
V
G
V
G
G
V
G
V
G
G
G
3-wire sensors
Black (white)
Brown (red)
Blue (black)
Black (white)
Brown (red)
Blue (black)
Black (white)
Brown (red)
Blue (black)
3-wire sensors
Black (white)
Brown (red)
Blue (black)
Black (white)
Brown (red)
Blue (black)
Black (white)
Brown (red)
Blue (black)
Black (white)
Brown (red)
Blue (black)
−
+
I/O power
supply
GRT1-PC8GRT1-ID8-1 GRT1-ID8-1
V
2
V
6
0
4
7
V
3
V
1
5
V
2
V
6
0
4
7
V
3
V
1
5
G
V
G
V
V
V
V
G
V
G
V
V
2-wire sensors 2-wire sensors
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
GRT1-ID8-1
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
Brown (white)
Blue (black)
V
2
V
6
0
4
7
V
3
V
1
5