Thanks for the link, Have now tried changing wires to both ways still no motor output, now looking at System 4 pcb, have blue power led on all time, have a green power save led on all time, 2 red signal led's fade out under 60 sec, 4 yellow direction XYZA led's never seen on.
all port pins set as per sys4 book, power is 28vdc, mach3 settings all appear to be correct, am I missing something out should anything else be enabled? can sys4 board be checked out/tested?