I have a CNC4you driver board , KK01 with spindle relay and I hav it set to contol the spindle by via its onboard relay
My spindle is driven via a 3 phase inverter. As I shut my system down via the computer , the spindle pulses for a second or so .
It does it again as I cut power from the control system. Do others have this problem? I Guess it could be a safety issue so how could I overcome it.?