So with the manual supplied from Kn8 (thanks again!) it looks like I have a HUANGYANG HY01D523B 1.5 Kw VFD

Next step is to sus out how the vfd has been configured and see how that matches up in mach 3...

I guess it's possible to have a potentiometer supplying 0-10v to the vfd for complete manual control? Has anyone done this?

Jim