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General Mach Discussion / PWM and Digispeed
« on: August 06, 2008, 01:29:47 PM »
My speed control seems to have stopped working.
As far as I can see, I have all the correct ticks in the boxes - i.e. spindle step, active, spindle motor output, pwm control, use spindle feedback in sync mode.
My index is still working and the spindle speed is tracked when I operate it manuall.
I seem to have a PWM signal coming out of pin 16, which I can measure with my mulrimeter, and it alters as I vary the speed using the S command.
I have the digispeed enable at 0volts.
Anything else I have forgotten before I declare my digispeed dead I am at a loss
As far as I can see, I have all the correct ticks in the boxes - i.e. spindle step, active, spindle motor output, pwm control, use spindle feedback in sync mode.
My index is still working and the spindle speed is tracked when I operate it manuall.
I seem to have a PWM signal coming out of pin 16, which I can measure with my mulrimeter, and it alters as I vary the speed using the S command.
I have the digispeed enable at 0volts.
Anything else I have forgotten before I declare my digispeed dead I am at a loss