I was able to find the correct driver and got my machine running on all axes so I no longer need assistance with this issue. I do have another question though if anyone can give it some consideration. I'm unable to control the spindle/VFD through Mach3. The VFD is on and displays info on the screen but it doesn't seem to display RPM or control the spindle. I can provide pictures and/or additional information if it helps. Thanks.