Default: 1
Target phase margin (degrees) — Target minimum phase margin of open-loop
response
60 (default) | scalar in range 0–90
Specify a target minimum phase margin for the tuned open-loop response at the
crossover frequency. The target phase margin reflects desired robustness of the tuned
system. Typically, choose a value in the range of about 45°–60°. In general, higher phase
margin improves overshoot, but can limit response speed. The default value, 60°, tends to
balance performance and robustness, yielding about 5–10% overshoot, depending on the
characteristics of your plant.
To provide the target phase margin via an input port, select Use external source.
Tunable: Yes
Programmatic Use
Block Parameter: TargetPM
Type: scalar
Values: 0–90
Default: 60
Experiment Tab
Plant Type — Stability of plant
Stable (default) | Integrating
Specify whether the plant is stable or integrating. If the plant has one or more
integrators, select Integrating.
Programmatic Use
Block Parameter: PlantType
Type: character vector
Values: 'Stable' | 'Integrating'
Default: 'Stable'
Plant Sign — Sign of plant
Positive (default) | Negative
Specify whether the plant is positive or negative. If a positive change in the plant input at
the nominal operating point results in a positive change in the plant output, specify
Closed-Loop PID Autotuner