Omron NXR Series User Manual page 73

2
1
4
I/O connector
IO-Link Master Unit
L
Internal
circuits
Connected external device
L
Internal
circuits
Connected external device
Wiring Example for Two-wire Sensors
A wiring example for a 2-wire sensor to an input of the Digital I/O Hub is given below.
In this example, pin 4 of port 1 serves as an input.
Two-wire sensor
The power +(V) to pin 1 is supplied from the IO-Link Master Unit through the IO-Link cable to the Digi-
tal I/O Hub.
Wiring Example for Three-wire Sensors
A wiring example for a 3-wire sensor to an input of the Digital I/O Hub is given below.
In this example, pin 4 of port 1 serves as an input.
NXR-series IO-Link I/O Hub User's Manual (W620)
U/IN P+
Reverse
OUT P+
current
3
U/IN P-/OUT P-
C/Q
Reverse current
IO white
Protective diode
V brown
IO black
G blue
Reverse current
IO white
Protective diode
V brown
IO black
G blue
1
V
4
I0 or IO0
Digital I/O Hub with
an input
IO-Link connector
1
4
2
3
2 I/O connector
3
Pin 4: Input
1
Pin 2: Output
4
2
I/O connector
3 Pin 4: Output
Pin 2: Input
1
4
Digital I/O Variable Hub
2
I/O connector
3
5 Installation and Wiring
5-13
5