Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 314)

314 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 6 Integrated Motion on the EtherNet/IP Network Applications for PowerFlex 755 AC Drives
24. To verify that the Motor to Load ratio is correct, select the Parameter List
category.
25. View the value of the FeedbackUnitRatio parameter. In this example the
ratio is 5:1, or 5 motor encoder revolutions to per load encoder revolution.
If the velocity loop is not performing well, that is, not following the
command and not accelerating or decelerating properly, verify that this
ratio is correct.
26. Continue by tuning this axis.