I am replacing my MultiCam 22Plus CNC controller and some of the other parts with a Planet CNC controller.

My proximity switches for the three axis will require an "optocoupler" between the limit switch connection on the controller board and the proximity switch.

I have five proximity switches, 2 for "X axis", 2 for "Y axis", and 1 for "Z axis", My question is, can I wire the proximity switches for the two "X" switches in a series and the two "Y" switches in a series or does each switch require it's own optocoupler?

Thanks in advance

Jim Markevitch
Grapevine, TX