Sanken SVCO6, Instruction Manual, Page: 220 / 326

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7-3 Description of Functions
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External PID Control
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The external PID control doesn‘t mean to use PID control output as the control for output frequency of the inverter, it
means to use inverter as an independent PID controller and use it to control the external peripheral devices.
The formation and action of each PID control is set and selected together with the normal PID control function of the
inverter output frequency.
Motor driving with inverter
Motor
Inverter
Power supply
Independent control system
PID command PID controller PID output
Control device
Control command
Sensor
Control object
PID feedback
External PID control system
F3203 External PID control selection
F3204 External PID operation mode selection
● The function to select external PID actions.
· F3203=0: no external PID control
· F3203=1: PID1 external control is effective
· F3203=2: PID2 external control is effective
· F3203=3: For factory adjustment
· F3203=4: Both PID1 and PID2 external controls are effective
· F3203=5: For factory adjustment
· F3203=6: For factory adjustment
Matching to the selection of external PID, select the operation mode of external PID control. This function is used to
decide the start and stop of the external PID control.
● Select the operation mode of external PID control
· F3204=1: Operation interlocked with inverter operation
Start operation interlocked with inverter operation and start the external PID control. When the inverter is
stopped, stop PID control.
· F3204=2: PID output after power input
Start operation interlocked with inverter power supply and start the external PID control. When detecting the
undervoltage during inverter power supply OFF, stop the PID control.
· F3204=3: PID output controlled by external terminals
Start the operation of external PID control through the external multi-function input terminal (DI1
-
DI8).