MTS Series 793 - Manual (Page 83)

How to Manually Tune the Control Loop
MTS Series 793 Tuning and Calibration Tuning Procedures 83
2. Define the strain command.
This step defines the tuning command using the function generator.
Standalone FlexTest SE Controllers: Tuning > Manual > FG
Automated Controllers: Click on Station Manager.
3. Set up the Scope.
Note You can use an oscilloscope instead of the software scope if you want.
To do that you must define a Readout channel to connect the
oscilloscope.
Standalone FlexTest SE Controllers:
Select Scope and set up scope parameters to display the strain feedback and
strain command signals. Set Trace Time to 2 seconds and ensure that Auto-
Scale is on.
Automated Controllers:
A. On the Display menu select Scope.
B. Select the strain command signal for Channel A.
C. Select the strain feedback signal for Channel B
D. Set the Trace Time to 2 seconds.
E. Ensure Auto-Scale is on (the default position is ON).
Note To improve your view of the waveform, click the Rescale button to
maximize the waveform on the display.
C ONTROL S ETTING
Wave Shape Ramp
Frequency 1 Hz
Target Setpoint 0 mm
Amplitude Set an initial amplitude of zero. After
verifying system control, increase the
amplitude to a reasonable level (typical:
0.001 mm/mm).