Question: A process controlled with a PI was subjected to a step change in the desired value. The response of the process was shown in the

A process controlled with a PI was subjected to a step change in the desired value. The response of the process was shown in the figure below. What problem was there in the tuning? A process controlled with a PI was subjected to a step

a. The real roots have the opposite sign to the process roots. b. The step change was the opposite of what was needed c. Kc has the opposite sign to the sign of kA*kp*kT d. None of the above. e. This occurs when there is no kcu.

b. El cambio escaln fue el contrario al que se necesitaba c. Kc tiene el signo opuesto al signo de kAkpkT d. Ninguna de las anteriores. e. Esto ocurre cuando no hay kcu. b. El cambio escaln fue el contrario al que se necesitaba c. Kc tiene el signo opuesto al signo de kAkpkT d. Ninguna de las anteriores. e. Esto ocurre cuando no hay kcu

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