Ok forget the KBIC controller!! These drivers are used on the optimum Vario lathes and is useless for what you want.
Depending on your setup you can drive the board with your controller. I use pico systems breakout boards. In my case I made a board to replaced the switches with relays (see pic), but If you don't want to make this board, you can buy the C6 board which will do the job.
Attached is a circuit diag for you.
Cheers
Stephen
Attachment 425242Attachment 425244Attachment 425246