Ok I think I may see what is happening, the manual will take a bit of reading but from first look it seems the analogue signal is linked to the Step pin, as step pin is pin 1 it is the same pin as the relay is on, so looks like it is your step pulse that is triggering it. Have you adjusted the pots?
Its getting late here (2:20am)  and need some sleep.
Hood

We'll carry on tommorrow.

Hi Hood
I did away with the start/run relays on my bob and connected the vfd to the modbus
control.I'm using the cubloc 290 so I have 91 i/o's to choose from.It now is working fine.
Funny how the bob is reacting ,I would like to know how to control the spindle relays
 that are built on to the board.Now for the tool changer.I like the hot swap idea of poppabears
and if I can find the code try to implement it on my 25 position tool drum.
Thanks for the help.