John, Good morning, and thank you for your response.
Yes to Mac3 operating on X, Y and Z correctl, which presumably means that Mack 3 is communicating via the USB connection with the CNC.
Yes I think all cables a re connected and plugged in.
Alas I do not understand what the VFD is, and how it operates the Router. I gather that the Router is run of 3 phase (which again I do not understand (Alas old age is a big burden !!)
I think in theory that it opossible using Code M03 S12000 to make the spindle run, but it is not.
My email address is malcolm@thefarrants.net if you care to email me your phone number I will telephone youy to discuss.
I am so grateful for any help I can get.
Regards Malcolm