Omron Sysmac NX-PD1000 User Manual page 73

Unit name
I/O Power Supply Con-
nection Unit
NX-series System Units User's Manual (W523)
This NX Unit is used when there are not enough I/O power supply terminals for the con-
nected external devices that are connected to NX Units such as Digital I/O Units and
Analog I/O Units.
NX-series
NX1P2
CPU Unit
Internal power
supply circuit
Unit power
supply
Example of NPN type
I/O Power Supply I/O Power Supply
Connection Unit Connection Unit
(16 IOV terminals) (16 IOG terminals)
A1 B1 A1
IOV IOV
IOG
IOV IOV
IOV IOV IOG
IOV IOV
IOV IOV IOG
IOG
IOV IOV
IOV IOV IOG
IOV
IOV IOV IOG
A8 B8 A8
* Wire colors have been changed according to revisions in the JIS standards for photoelectric and
proximity sensors. The colors in parentheses are the wire colors prior to the revisions.
4 Installation and Wiring
Function
I/O power supply is not separated in
I/O Power Supply Connection Unit
Additional I/O
Power Supply Unit
I/O power I/O power
supply supply
DC Input Unit
(NPN type)
B1 A1 B1
IOG IOG 0 1
IOG 3
2
IOG 4 5
IOG IOG 7
6
IOG 8 9
IOG 10 11
13
IOG 12
sensor or proximity
IOG 14 15
B8 A8 B8
I/O Power Supply
Connection Unit
NX Unit
Not enough I/O
power supply
terminals
Two-wire sensor *
(e.g., limit switch)
Brown (White)
Blue (Black)
Three-wire sensor
with NPN output*
(e.g., photoelectric
sensor)
Black (White)
Brown (Red)
Blue (Black)
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