94 Rockwell Automation Publication MP-UM001D-EN-P - September 2013
Appendix E Home to Torque-level Example
Drive Bipolar Torque Limit
Adjustment
When homing an axis to a mechanical hard-stop, set the Home Torque-level
value above the torque value required to move the system, but low enough not to
cause problems with the system mechanics. As part of the process of homing to a
torque limit, limit the Peak Torque value to a level 10% above the Home Torque
value to reduce the stresses on the mechanics and to eliminate the chance of an
over-current error.
Limit the Peak Torque value before issuing the homing instruction (MAH) and
reset the Peak Torque field to the original value after homing completes.
Figure 29 - Bipolar Torque Limit Adjustment
The 10% value is an estimated starting point. This value can
need adjustment based on the application requirements.
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