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85
Double direct action, 1
Se B.P. / 2
Setpoint + B.P.
Setpoint
Uscita al 100%
Uscita al 0%
Double inverse action, 0
Setpoint - B.P. / 2
Setpoint
Setpoint - B.P.
Uscita al 100%
Uscita al 0%
Double inverse action, 1
Setpoint - B.P. / 2
Setpoint
Setpoint - B.P.
Uscita al 100%
Uscita al 0%
The PID function, for correct operation, must be called at the most
regular intervals possible, thus by timer, or for more brief and
precise times, by an internal interrupt.
The function SetOutPID is used for the regulation anticipated by
the double function automatic/manual. It serves to avoid oscillation
of size control in switching from manual mode to automatic by the
PID algorithm.
The function uses the following parameters:
•
Output value
The Output value is set by the PID automatically calculating the
single percentages of the proportional and integral actions. In this
mode, at the switching of manual function to automatic, the output
value of the PID will take on the value set by manual and will
initiate the regulation.
The function thus should be called only during the manual
regulation phase, in order to maintain alignment of the output of
the PID with that of manual. The function will automatically zero
the derived action. The use of this function with the process
outside of the proportional band sets the integral action to zero.
Summary of Contents for TD240 series
Page 1: ...Manuale operatore...
Page 2: ...2...
Page 6: ...6 3 Mechanical dimensions and installation...
Page 24: ...24 7 1 Starter Kit Connection of the terminal to the PC...
Page 27: ...27 7 2 1 Creation of a new project...
Page 89: ...89 11 Notes Updates...
Page 90: ...90...
Page 91: ...91...