Optical coupler BOARD

For safety reasons we need to add an optical coupler board.
How does one set up the T3-LB’S input range and sensor signal type with a NPN/PNP optical coupler ?

Should be able to set them up as dry contacts, the signal is muxed on board the T3 controller to a weak 3V pullup resistor which will provide the excitation voltage for your NPN opto. Give it a try and report back, I will set up a test here if it doesn’t work as expected.