Originally Posted by
CNCMAN172
EvilSpeeder,
As Mactec54 requested a few pictures might help. Here is what I think might be going on with your system. I am assuming you are using MACH3 with a parallel port setup, sounds like you are new so my guess is you used the default setup. You need to look under Configuration at the top of the page and then Ports/Pins and then look under inputs. The E-STOP function is my default assigned to a input pin, normally pin 15 if I remember correctly. Since you are just using an E-stop button or switch that disables the G540 stepper driver MACH3 knows absolutely nothing about that switch. You need to disable the E-stop function on the inputs page. It is probably looking at your parallel card and seeing the inputs floating, since they are not wired to anything in your situation for the E-stop pin. Check that out and you will probably resolve your problem. I would highly recommend you implement limits switches / home switches as well. Depending on your machine a few mistakes can be costly if you command the hardware to do something wrong by accident and you have no protection.
Russ