Pid Control; Pid Control Applications - Omron SYSDRIVE 3G3MV User Manual

Advanced Operation

6-3 PID Control

Detected values of the Inverter in proportional, integral, and derivative
(PID) control are fed back so that the values will coincide with preset target
values.
Proportional control, integral control, and derivative control in combination
are available to machinery systems involving redundancy time in control
operation. The PID control function of the 3G3MV Inverter is not suitable to
the control of systems that require a response of 50 ms or quicker, how-
ever.
The following description provides the applications and operation of PID
control together with required parameter settings and adjustments.

6-3-1 PID Control Applications

·The following table provides application examples of the Inverter in PID control.
Application
Speed control
Pressure control
Flow rate control
Temperature control
Control
The speed data of the machinery system is
fed back so that the operating speed of the
machinery system will coincide with the
target value.
The speed data of another machinery
system is input as a target value and the
actual operating speed of the machinery is
fed back for synchronous control.
Data on pressure is fed back for constant
pressure control.
Data on the flow rate of liquid is fed back
for precise flow control.
Data on temperature is fed back for
temperature control using fan operation.
Chapter 6
Sensor used
(example)
Tacho generator
Pressure sensor
Flow sensor
Thermocouple
Thermistor
6-13