Rockwell Automation Publication 2198-UM005C-EN-P - February 2022 237
Appendix C Motor Control Feature Support
Virtual Torque Sensor The virtual torque sensor feature provides an estimate of the motor torque
without having a physical torque sensor. The virtual torque sensor can be
leveraged to improve the commissioning and maintenance experience with
mechanical systems and to optimize production quality. Some examples of
how the feature can be applied include the following:
• Indication of shaft misalignment during commissioning
• Verification of appropriate mechanical belt tensioning during
maintenance
• Detection of a material jam during operation
The feature provides an estimate of the motor air-gap torque under dynamic
and steady state operating conditions. The air-gap torque is the torque that
includes the load torque, motor torque losses, and rotor acceleration torque.
The estimated torque does not affect motion control or drive performance.
For more information on how to apply the virtual torque sensor feature, see
Virtual Torque Sensor Application Technique, publication 2198-AT003
.
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