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8-22

IM 05P02D41-01EN

8.4.3 SwitchingPIDAccordingtoSP

Description

ThezonePIDselectionbySPswitchesbetweenthegroupsofPIDparametersaccording

to the SP. The maximum number of PID groups to be switched is 4. (Set RP1 to RP3)

The figure below shows the example of switching the group of PID parameters according

to the SP. It shows an example of dividing the PV input range from the maximum value to

theminimumvalueintofourzonesbyreferencepoints1to3.(SetRP1toRP3.)

Maximum value of

PV input range

Minimum value of

PV input range

(PID of group 5)

(PID of group 4)

(PID of group 3)

(PID of group 2)

PID of group 2

PID of group 3

(PID of group1)

Time

PID of group 1 PID of group 3 PID of grop 2

PID of group 4

Reference point 3

Reference point 2

Reference point 1

PID No. to be selected

ThePVinputrangecanbedividedintothenumberofzonesthatissetinthereference

point.

Reference deviation can be set at the same time.

► Reference deviation: 8.4.5 Switching PID according to Deviation (Reference Deviation)

8.4SwitchingPID

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