MTS Series 793 Controller User Manual
Page 91
Steps to Run a Test
MTS Series 793 Controller Overview
Perform a Practice Test
91
E.
Install a dummy specimen that has a compliance similar to the test
specimen.
•
From the Station Controls panel toolbar, click the Manual Command
icon .
•
Click to select the Enable Manual Command check box.
•
Select the Displacement control mode.
•
Adjust the Manual Command slider to position the actuator while
installing the specimen.
•
Switch to the Force control mode.
F.
Adjust the P Gain and D Gain tuning controls.
•
Start the Function Generator by clicking the Program Run control
and observe the resulting waveform on the Scope.
•
From the Display menu, select Station Setup.
•
From the tree view, expand Channels, then select Channel 1.
•
Click the Tuning icon
to display the tuning adjustment controls.
•
Increase the P Gain control until you see a little overshoot and a little
ringing on the Scope.
•
Slowly increase the D Gain control to reduce the overshoot and
ringing. Keep in mind that small adjustments of D can have large
effects on your system.
•
Repeat P Gain and D Gain adjustments until you achieve an optimum
waveform
Ringing
Overshoot