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Using the I/O Receptacle
Insert a small slotted screwdriver into the upper or lower
slot of the hole you want to connect a wire to (AWG No.
26 to 20). Hold down the screwdriver and insert the wire,
then release the screwdriver.
Caution
Do not use excessive force when inserting the screwdriver
into the slot. Doing so may result in damage.
1
2
Repeat this procedure to connect all required wires.
Wiring Diagram 1 for Sensor Input
Inside of this unit
3, 5, 7, 9, 11, 13, 15, 17pin
(SENSOR IN+)
2.35 kΩ
2, 4, 6, 8, 10, 12, 14, 16pin
(SENSOR IN-)
Wiring Diagram 2 for Sensor Input
Inside of this unit
1 pin (VDD) (200 mA max)
3, 5, 7, 9, 11, 13, 15,
17pin
(SENSOR IN+)
Wire
Mechanical
2.35 kΩ
switch
2, 4, 6, 8, 10, 12, 14,
16pin
(SENSOR IN-)
18pin (GND)
GND
3
Outside
Sensor
device
Output:
3.3 to 24 V
DC
Outside
or
Open collector
output device
Note
When the wiring diagram 2 is used, the NSR is not
electrically isolated, so be sure to construct external
circuits that will not produce noise, excess voltage, or
overcurrents.
Wiring Diagram for Alarm Output
Inside of this unit
3, 5, 7, 9, 11, 13,
15, 17pin
(ALARM OUT+)
Magnet relay
24 V AC/24 V DC,
1 A or less
2, 4, 6, 8, 10, 12,
14, 16pin
(ALARM OUT-)
Outside
5 V
Circuit example
GND
I/O Port
131
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