MTS Acumen - Manual (Page 172)

Tuning Procedures
The following procedures provide step-by-step information about how to select an existing tuning set,
create a new tuning set, use auto tuning capabilities, verify your tuning set, or manually adjust your tuning
set:
• Using the selected tuning set as is (p. 172)
• Auto Tune - Generate Specimen Characteristics (p. 172)
• Auto Tune - Enter Specimen Characteristics (p. 173)
• Verifying the Tuning Set (p. 174)
• Adjust Tuning (Basic) (p. 176)
• Adjust Tuning (Advanced) (p. 177)
• Adjust Tuning (Expert) (p. 178)
Using the selected tuning set as is
In this procedure, you will use a tuning set that has already been created.
1. Select the desired tuning set in the Current tuning set list box.
2. Select Use selected—Use selected tuning set.
Auto Tune - Generate Specimen Characteristics
In this procedure, the system will tune itself and generate specimen characteristics automatically.
Note:
To maintain system stability, the system performs auto tune operations in the stable displacement
control mode.
1. Select Auto tune—Have the system tune itself.
2. Click Next.
3. In the How do you want to identify specimen characteristics? list box, select System Identifies.
4. In the Test Type list box, select the type of command you intend to apply to the specimen when you
perform a test. The auto tune function uses this information to optimize the process of determining
specimen characteristics. Tension-Tension pertains to command that applies lesser and greater
amounts of tension to the specimen. Compression-Compression pertains to command that applies
lesser and greater amounts of compression to the specimen. Tension-Compression pertains to
command that applies both tension and compression to the specimen.
5. Enter the minimum and maximum force values you want the application to apply to the specimen when
it generates the modeling program to determine the specimen’s stiffness, mass, and damping.
6. Check limits and actions, clear interlocks, apply power, and so on to prepare the system to run the
specimen measurement program. (The green check mark shows when the system is ready to tune).
7. Click the green Run button in the tuning panel to apply the specimen measurement program and observe
the results (load feedback in response to the command) on the scope.
8. When the specimen measurement program is complete, the tuning progress bar shows Tuning
Progress: Complete and the stiffness, mass, and damping values calculated by the system display
in the New column.
172 | MTS Acumen ™
Best Practices for Other System Configurations and Tests