Quote Originally Posted by irving2008 View Post
Never thought about this before, but if you are using parallel connected HOME switches you MUST configure Mach3 to back off them (unless that's the default) else it'll never home the 2nd and subsequent axis as it'll never see the switch state change.
Yes that's how Mach works Irving Hits the switch then backs off then Zero's the Axis before moving onto next axis.


Quote Originally Posted by irving2008 View Post
Also, series connected NC surely only works with the 2-wire versions.
For Limits ONLY then Series wired Prox switches work just they have slower reaction times with each switch but for the few needed, esp if like me you use traveling switches that look for a target so only 1 each axis then it's not a problem.
The Link Eddy gave explains about series wired prox switches.!! Sensors - Outputs & Wiring