Wiring Diagram check

[JAZZCNC]

What you could do is use a two way switch with centre off. One way would switch the FOR-DCM directly and the other would put the FOR-DCM through a relay controlled by the BoB. That would give you three modes :- Fully ON,Totally OFF and Automatic. I do this for my Kress spindle and also my chip blower. I will probably do the same when I build the next machine with a VFD controlled spindle.

Cheers,

Rob

Won't work Rob.! Well it will work for the Off bit but not for the option of controlling directly from VFD front panel or BOB. Problem is the VFD needs parameter setting to change from External control to Panel control.