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Mach4 General Discussion / Re: Mach4 Spindle setup
« on: March 16, 2016, 05:00:58 PM »
The fact that the output for S3600 is 10.1 volts, the output for S1800 is 5.1 volts,
and the output for S900 is 2.93 volts points to increasing error as you approach
the lower end. My best guess is that the Mach configuration and the ESS are doing
what they are supposed to do, and the analog circuitry on the C32 is not linear.
You could confirm this by taking a few more data points and graphing the result.
Mach or ESS problems could result in a graph with the line shifted, but it should
still be straight. If you get a line with a gradual curve near the low end, then it
is most likely a linearity problem with the PWM to analog conversion circuits.
Steve Stallings
www.PMDX.com
and the output for S900 is 2.93 volts points to increasing error as you approach
the lower end. My best guess is that the Mach configuration and the ESS are doing
what they are supposed to do, and the analog circuitry on the C32 is not linear.
You could confirm this by taking a few more data points and graphing the result.
Mach or ESS problems could result in a graph with the line shifted, but it should
still be straight. If you get a line with a gradual curve near the low end, then it
is most likely a linearity problem with the PWM to analog conversion circuits.
Steve Stallings
www.PMDX.com