PID action outline
● PI action
PI action is a combination of proportional action (P) and integral action (I), and applies a manipulated
amount according to the size of the deviation and transition or changes over time.
PI action is the result of P and I actions being added together.
● PD action
PD action is a combination of proportional action (P) and differential action (D), and applies a manip-
ulated amount according to the speed of the deviation to improve excessive characteristics.
PD action is the result of P and D actions being added together.
Deviation Set point
Operation example for stepped changes of
Operation example for proportional changes of
(A) Application parameters
5 - 527