As the title suggest I have a Delta VFD-B motor drive and was wondering if anyone can tell me if I can control the spindle speed directly through Mach? At the moment regardless of the spindle speed in the G-code it always goes to max speed. I am trying to drill holes and continuously burning drill bits because the spindle is going too fast.

Thanks

Stu

Dont know anything about the DeltaB but if it uses 0-10v for speed control then you will need one of the various speed control boards available, Peter Homann does some, think his website is homanndesigns.com.
There are other people out there that also do their own speed control boards.

Hood