Quote Originally Posted by JAZZCNC View Post
No it's a separate board if you want to control spindle speed.

You can use BOB's On board relays to control VFD start/stop signals. To be honest I don't often bother with spindle speed control and just control Start/stop.
I also use the relay built into VFD to control water pump so it's only running when spindle spinning.!
Cool - I am not to sure I will need spindle control any time soon. I have 2 really nice spindles, one with a vortex tube on it pumping cool air down the centre of the cutter that I want to get running. The machine it came with had a KEB inverter that I need to start understanding . Spindle control won't be relevant until I have that sorted!!!