KEYENCE DL-RB1A - Manual (Page 20)

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2-1 Connecting the DL-RB1A to External Devices
 Input circuit diagram
 Input circuit (Pin Nos. 1 to 5)
* The terminals for pin Nos. 33 and 34 are used in common with 0 V (the blue wire of the sensor
amplifier main unit).
 Output circuit (Pin Nos. 6 to 32)
* The terminals for pin Nos. 33 and 34 are used in common with 0 V (the blue wire of the sensor
amplifier main unit).
Main cir
cuit
(Short-circuit current 1 mA max.)
+5V
1 to 5
33 or 34*
Internal circuit
6 to 32 (20 mA max.)
33 or 34*
IN
COM
Photocoupler insulation
PLC etc.
Internal circuit
Overcurrent protect circuit