Hi,
You don't have a freakin' A axis, that is your Mach3 thinking. You've been told three times, once by Steve
and twice by me to remove all reference to the A axis. This makes the fourth....
There should be no motor assigned to the A axis and it should not be enabled.
On the Homing/SoftLimits page the home order of the A axis should be zero, ie it does not home at all.
On the InputSignals page the MotorHome0 though MotorHome3 should be populated with there respective
home switch input pins, per my previously posted screen shot.
If it does not work thereafter I can only conclude the XHC doesn't support slave motors...surprise surprise!
If that's the case you can try contacting XHC, and good luck with that, OR buy yourself an ESS, it works as advertised
and Andy (Warp9 Tech Rep) is on-line 8 hours a day 5 days a week for support.
Craig