User`s manual

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MELSEC-Q
1 OVERVIEW
1.4.4 PID operation
This section explains the control operation using combinations of proportional operation (P
operation), integral operation (I operation), and derivative operation (D operation).
(1) The PID operation controls the calculated manipulated value using (P
I D) operation.
(2) The PID operation when the deviation is a constant value stepped response is shown in Fig.
1.6.
Deviation
Time
Manipulated value
Time
PID operation
I operation
P operation
D operation
PI
operation
Fig. 1.6 PID operation when deviation is constant