With the tuning features of the Kinetix® 5500 and Kinetix 5700 servo drives, tuningless operation can now be achieved without compromising on performance. By using both the load observer and the tracking notch filter in Kinetix 5500 and Kinetix 5700 servo drives, most applications no longer require tuning procedures and tests during the commissioning process to achieve an effective level of machine performance.
Kinetix 5700 servo drive system. You can view or download publications at http://www.rockwellautomation.com/global/literature-library/ overview.page. To order paper copies of technical documentation, contact your local Allen-Bradley distributor or Rockwell Automation sales representative. Load Observer The load observer feature operates in real time while the machine is running. During machine operation, the load observer estimates the mechanical load inertia on the motor and compensates for it.
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Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives 3. From the Application Type pull-down menu, choose Custom. 4. Clear the Torque Low Pass Filter checkbox. 5. Select the Load category and verify that the Load Ratio is zero; otherwise, set it to zero.
Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives 6. Under the Load category, select Observer. 7. From the Configuration pull-down menu, choose ‘Load Observer with Velocity Estimate’ if the axis is configured for Position Loop control or ‘Load Observer Only’ if the axis is configured for Velocity Loop control. Load Observer is not available for Torque Loop control.
Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives Adaptive Tuning with the Tracking Notch Filter The tracking notch filter operates in real time while the machine runs. During machine operation, the drive measures the mechanical resonances in the system and dynamically sets the notch filter frequency to mitigate the resonances.
Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives 4. Select the Drive Parameters Category. 5. Scroll down and check TorqueNotchFilterFrequencyEstimate and TorqueNotchFilterMagnitudeEstimate. TIP Selecting these parameters is optional. They are available to assist with commissioning and provide diagnostic information.
Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives Additional Considerations For more detailed technical information on the operation of the load observer or adaptive tuning features, see Chapter 1 of Motion System Tuning Application Techniques, publication MOTION-AT005. Notch Filter Initialization See Knowledgebase article number 1071465 for details on how to retain the notch filter settings when power is removed and reapplied to the system.
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Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives Maximum Acceleration and Deceleration When using the Load Observer feature, it is recommended that the load ratio is set to zero. For applications that utilize ‘percent of maximum’ for the motion units, the Maximum Acceleration and Maximum Deceleration values for the application should be decreased (as appropriate for the load) to stay within drive limits during operation.
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Tuningless Features for Kinetix 5500 and Kinetix 5700 Servo Drives Notes: Rockwell Automation Publication MOTION-QS001C-EN-P - November 2018...
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