MTS Series 793 - Manual (Page 92)

MTS Series 793 Tuning and Calibration
How to Perform Advanced Tuning Techniques
Tuning Procedures 92
4. Press Run to start auto-tuning.
The controller displays the following (or a similar) message:
“The ‘Mode to Tune’ (‘Force’) is not the control mode which will be active
during auto-tuning. Ensure that the active ‘Control Mode’ is tuned prior to
proceeding. If the selected ‘Mode to Tune’ requires feedback from a
specimen (ex: Force/Torque/Strain), ensure that a specimen is mounted.”
Select Yes (or Press <>) if you have tuned the channel’s displacement
mode and installed a specimen.
When the Controller starts auto-tuning the following is displayed:
“Auto Tuning in Progress...To terminate auto-tuning before
completion, press .”
When auto-tuning is complete, the controller displays:
“Auto Tuning for this mode has completed successfully.”
Also, when auto-tuning is complete, the results are displayed showing
Current tuning values and Reference values.
Press Accept to apply the Reference values.
5. Save the auto-tuning values.
Standalone FlexTest SE Controllers: Select Setup > Open/Save
Parameters > <>
Automated Controllers: In the Station Manager window’s File menu,
select Save Parameters to save the New Values.
You may save auto-tuning values to an existing parameter set or to a new
parameter set.
How to improve auto-
tuning results
You can attempt to further improve tuning using the following techniques:
• Use the auto-tuning settings as a starting point when manually tuning each
control mode.
• If your feedback signal is noisy, use a tuning filter (see “About Tuning
Filters” on page 115).