Info we got from Microscan
To connect a Photoeye: The "Sensor Inputs" (pins 6&7) are bi-polar, meaning they can be either (+) or (-), the both go to a circuit that just checks for a difference between the two.
The Photo eye can get its power from pins 4 (+24V) and 8 (- GND)
Trigger pin 6
So, in order to trigger:
you should connect 6(inA) to 4(+24V) and switch 8(GND) and 7(inB) = (NPN - sinking)
OR
Connect 8(GND) and 7(inB) and switch 6 (inA) and 4(+24V) = (PNP - sourcing)
----
There is a better illustration on page A-2 of the manual and the note 2 is:
Bipolar isolated camera sensor trigger:
– Logic 0: 0 to 5V
– Logic 1: 15 to 30V
– Rin: 18k Ohms
And then at the top of page 2-12, it shows the wiring for PNP or NPN configuration scenarios. INA and INB are interchangable between pins 6 & 7 since it is a bi-polar connection
The Photo eye can get its power from pins 4 (+24V) and 8 (- GND)
Trigger pin 6
So, in order to trigger:
you should connect 6(inA) to 4(+24V) and switch 8(GND) and 7(inB) = (NPN - sinking)
OR
Connect 8(GND) and 7(inB) and switch 6 (inA) and 4(+24V) = (PNP - sourcing)
----
There is a better illustration on page A-2 of the manual and the note 2 is:
Bipolar isolated camera sensor trigger:
– Logic 0: 0 to 5V
– Logic 1: 15 to 30V
– Rin: 18k Ohms
And then at the top of page 2-12, it shows the wiring for PNP or NPN configuration scenarios. INA and INB are interchangable between pins 6 & 7 since it is a bi-polar connection
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