MTS Series 793 User Manual
Page 37
About Tuning
MTS Series 793 Tuning and Calibration
Introduction
37
This characteristic can easily be seen when tuning with a sine waveform. The
feedback waveform appears to be more like a ramp waveform when running at
100% capacity.
Amplitude
A system tuned at a low amplitude may become unstable at high amplitudes.
Tuning should be accomplished under conditions similar to the anticipated usage.
•
Use a moderate amplitude (5% to 10% full scale) for initial tuning.
•
Be sure the maximum velocity of the tuning command is 10% to 50% of the
maximum velocity of the system.
•
Increase the amplitude for fine tuning.
•
You may find it helpful to check tuning over a variety of amplitudes by
creating a test that cycles once at each of the target amplitudes. If you have
the optional MultiPurpose TestWare™ application, run the test to acquire
timed data so you can evaluate the results for each amplitude.
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