New CNC Mill on the horizon

[JAZZCNC]

thanks for the reply, I know they have to be connected to the controller and I am settled on the CS labs CSMIO IPM board which I am sure has a facility for connection of these I am just not sure where they are meant to be connected to on this. Is it a digital in or out? .......

Which motion controller you use doesn't matter. All you are doing is using a Output to turn the drive Enable signal on or off.
What matters is the Software Mach in this case has an enable output option for each axis which turns on or off when software is reset or E-stopped. You Assign this enable option to any output pin or pins you choose.
Often you'll just use 1 output and use this to trun a relay on or off which in turn sets all the enables on each drive.