The wire that you need to test goes from the computer to the speed controller, it is the Input side of the controller you need to see if there is a signal, not the output side. The xml you sent has no spindle settings as such, possibly it is the wrong one you sent. Right clcik on the Icon you start Mach with and choose properties, look at the name of the target, the last bit is the name of the xml you need to attach.
Hood