Hi Jazz, i couldn't visualize the e/stop to the BOB and the e /stop hard wiring combined, as well as that i was reading up on the fault signals from the drives and read a post in a thread concerning dead shorts. i just got the two completely mixed up . i think i have it under control now . i have the wiring nearly finished bar the override and buzzer. i might try and configure Mach3 which i downloaded a trial version of. i 'm not sure if i should power up the drives and then configure Mach 3 or leave the fuses out until i get Mach 3 configured and then power up . Or have i misunderstood the process of powering up? or should i power up 1 drive at a time and configue Mach 3. to be honest i'm at a loss as to my next move now that i have the wiring complete . i have the belts off the motors until i get them to turn. i suppose i'm being too cautious perhaps?