A 'Proportional Only' controlled automatic process loop is oscillating continually, above and below the set point. To stabilize this controller and lo...

Question

A 'Proportional Only' controlled automatic process loop is oscillating continually, above and below the set point. To stabilize this controller and loop using the 'gain' adjustment, what controller/loop response would you expect upon process changes vs. set point?

Accepted Answer

By decreasing gain gradually, the process should stabilize in a 'quarter wave' response to system's upsets vs. the set point.

Engine: General Subjects

A 'Proportional Only' controlled automatic process loop is oscillating continually, above and below the set point. To stabilize this controller and loop using the 'gain' adjustment, what controller/loop response would you expect upon process changes vs. set point?

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