Thanks both for the help and assistance. When I said I wired the switches to normally open because that was what the manual said. It was not the MACH3 manual, it was the Camtronics manual.
I did wire the switches to normally closed and changed the config. In this setup, when I hit the Ref. All Home, the axis move only a few thousandths and then start the next axis without ever a switch being made. I can see in the diagnostics page that when I have the switches wired for normally closed, the axis LEDs are lit and if I activate the switch, the LEDs go out.
I switch it back to normally open and everything works fine except for the motors not reversing when the home switches are made.
I am ready to just give up.
Pat