I'm setting up my C23 BOB controlled by Mach to operate the 0-10v analog output which will control the speed of my VFD...and it does. The problem is I cannot get the analog output to produce over about 6.5v. I can control the VFD but, through higher mathematics, I can only realize 65% of my max speed as evidenced by the frequency display (of about 75Hz) on the VFD. I've messed with the spindle motor tuning every which way to no avail.
Yes, I do have 12v feeding the analog system.
Any thoughts?
Cheers!