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03-03-2018 #3
Last Activity: 19-01-2024
The main used reason to use EGR is if your controller is pulse limited it allows you to get full rpm from your motor. So let's say using 10,000CPR encoders and motor rated RPM is 3000. You'll need 10,000 * 3000 / 60=500,000 PPS or 500Khz frequency from controller.
So if your controller can only provide 100Khz then your RPM will be limited to 600rpm. In which case you'd use 1:5 ratio to give 1 pulse in 5 out.
The cost of this is your encoder count is effectively reduced from 10,000CPR to 2000CPR which affects smoothness and resolution.Last edited by JAZZCNC; 03-03-2018 at 12:09 PM.
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