Description of the Firmware
IP244
C79000–B8576–C860–02
4–16
1.2 Self-Tuning Temperature Controller
1.2.1 Introduction
When correctly tuned, PID controllers achieve good control results with a wide variety of thermal
processes. However, the selection of the control parameters can be relatively time-consuming.
The self-tuning function implemented in the temperature controller module (EPROM) executes an
automatic process identification during the heating procedure and determines the optimum
controller parameters.
The self-tuning is suitable for slow changing processes with connected heating control loops as
found, for example, in plastic processing. The controller self-tuning function is particularly
advantageous when the controlled system reacts differently at different operating points in the
process, since the controller parameters for the particular operating point can be optimized.
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Fig. 1.2.1/1 Structure of the temperature controller with self-tuning function
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