MTS Series 793 - Manual (Page 104)

MTS Series 793 Tuning and Calibration
How to Perform Advanced Tuning Techniques
Tuning Procedures 104
About the Cascaded PIDF Control Mode
Note Cascaded PIDF control mode is a keyed option. It is available when you
purchase Model 793.21 Cascade Control.
The Cascaded PIDF control mode is typically used for testing that requires a high
degree of stability under dynamic conditions.
This control mode uses two control loops. The output of the outer (or secondary)
control loop is used as the input to the inner (or primary) control loop, as if it
were the final control element.
Cascaded PIDF Control Mode
How to Tune a Cascaded PIDF Control Mode
Tune the control modes that will supply the primary and secondary feedback
signals
1. Select an access level of Tuning:
Standalone FlexTest SE Controllers: Select Tuning > P Gain.
Automated Controllers: In the Station Manager window’s toolbar, select
an access level of Tuning.
FG
Secondary Loop
PID Controller Primary Loop
PID Controller
Load Cell
Control Feedback (Displacement)
Control Feedback (Force)