Hey guys, I am having an interesting issue here.

I purchased a new 48"x24" (reversed) machine setup, and was previously using an older NEMA23 motor setup with limit switches on the Y axis, X axis and A axis (slaved to X). Whenever I would press "Ref All Home", it would slowly move the machine to those switches, and stop when they got close, which is normal.

I just upgraded to a NEMA34 motor setup, and now I cannot get the limit switches to do their jobs. The switches do light up when the machine gets too close to them, so I know they actually work. I'm sure it's just a setting somewhere like the ports and pins, but I cannot seem to figure out which port/pin combination works for this setup within MACH3. Every port I tried (1 or 2) and every pin I've tried (10-13 and 15) don't seem to work at all. I started with just the Y axis just to see if I could get a good combo to work. No dice.

If I choose the diagnostics screen within MACH3, I believe you're supposed to see the switches function over on the right hand side. There are small boxes that usually light up when the switches turn on. I can't seem to get those boxes to light up when the machine activates the switches.

On the back of the NEMA34 box, the switches are wired to the X+, Y+ and A+ connectors. Within MACH3, I have X Home, Y Home and A home checked with "Active Low" also checked within the "Input Signals" section of the Ports and Pins window. Should I be using X++, Y++ and A++ within MACH3 instead of X Home, Y Home and A Home?

Anyone have any suggestions?