Right - before I blow something.

I need to connect the hypertherm interface cable to my BOB (one of the ones with the blue relay) and my Proma 150THC. Interface cable has 3 pairs of wires black/white (which according to proma manual are spoken for) Green/Black which are Start. Am I right in thinking these are to be connected to the relay output (spindle on/off)? And lastly red/black which are the Transfer wires - not sure if I need these with using this THC or what to do with them otherwise?

There is mention of Pin 17 for relay but not sure if relevant.

Proma has been wired in according to supplied instructions and will be tested tomorrow.

So far everything appears to be working - control cabinet looks a little messy but a work in progress I feel.

Any help greatly appreciated.