Mitsubishi Electric FR-D720S SC EC, Instruction Manual

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Parameter Special operation
FR-D700 SC EC 6 - 245
PD action
A combination of P action (P) and differential control action (D) for providing a manipulated var-
iable in response to deviation speed to improve the transient characteristic.
PID action
The PI action and PD action are combined to utilize the advantages of both actions for control.
Fig. 6-121:
Operation example for proportional changes
of measured value
I000046C
Fig. 6-122:
Operation example for proportional changes
of measured value
I001233E
Deviation
Set point
Measured
value
P action
D action
PD action
Deviation
Set point
Measured
value
P action
I action
PID action
D action