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General Mach Discussion / Need help with spindle speed control.

« on: April 20, 2011, 04:17:32 PM »

Ok i am doing a CNC conversion and also a motor swap/vfd install on my grizzly lathe. trying to test out the new motor with mach3. i have it hooked up to the VFD and it runs fine. i then wired up the vfd analog output from mach to the analog input on the vfd. i load mach3 with the gecko xml. switched the frequency control of the vfd to external input, not sure where to go from there to get it working.