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Connections
Output Circuit Diagrams
NL1
Brown (Red)
4.7 k
Switch
Black (White)
main
circuit
Blue (Black)
Note: The 0-V power supply side will be connected to the casing if the model is the NL1 or NL2.
External Connection
Sensor Power Supply (S3D2)
The use of the S3D2 is recommended for supplying 12 VDC to the
NL2 (or 24 VDC to the NL2) and converting the output of the NL into
relay or open collector output in versatile timing control. The NL3 does
not require a sensor power supply.
S3D2 Controller Unit
Be sure to wire the cable correctly according to the color of each lead wire. Do not wire power lines or high-tension lines alongside the
cable.
The use of S3D2 is recommended as a power supply to the NL1. Contact your OMRON representative for the datasheet of the S3D2.
NL1
+12 VDC Brown (Red)
OUT Black
(White)
Note: 1. The lead wire colors of the NL have been changed in compliance with the latest applicable JIS standards. Colors in parentheses are previous ones.
2. The figures in the S3D2 illustration indicate the terminal numbers of the socket.
3. Use a three-conductor cable with a minimum thickness of 0.75 mm to connect the NL and the Sensor Power Supply or other devices with no built-in contacts.
The cable can be extended up to 100 m on condition that the cable is wired in an independent conduit.
NL2
+12 VDC
Switch
Output
main
circuit
0 V
0 V Blue
(Black)
7
8
9
10
11
12
IN1
IN2
NORM INV
4
5
6
1
2
3
S3D2-AK
NL3
Brown (Red)
+24 VDC
Load
Black
2.2
Switch
(White)
main
Output
circuit
Blue (Black)
0 V
Applicable model
Sensor Controller
NL1
NL2
NL2
* Ground the blue (black) wire.
NL3
* Be sure to ground the blue (black)
line of the NL3.
Brown (Red)
Load
Black
(White)
100 VAC, 200 VAC
Output
Blue (Black)
Power supply
voltage
S3D2-AK
Basic operation
Memory and timer
S3D2-BK
operation
S3D2-CK
Timer operation
S3D2-AKD
Basic operation
S3D2-CKD
Timer operation
Blue (Black)
Black
24 VDC
(White)
Load
(Output)
0 V
Blue (Black) *
External circuit
A maximum DC load of 170 mA
(with no inductance or resistance).
Can be switched directly.
Brown (Red)
Black
(White)
100 VAC or
Load
200 VAC
(Output)
Blue (Black) *
External circuit
A maximum AC load of 300 mA
(cos
= 1).
Can be switched directly.
NL
4
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