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Automation and Drives - SCE
T I A Training Document Page 11 of 64 Module
2.3. Characteristics
Controlled systems in which a new constant output value sets itself after a certain time has passed
are called 'self-regulating process’.
The relationship of the output variables to the input variables in the steady state results in a
characteristic.
Parameter
In the environment of an operating point, the characteristic is replaced with a tangent. In the
environment of an operating point, the problem is treated as a linear problem.
The zero point of the variables x(t), y(t) and z(t) refers to the operating point A:
:
x = X – Xo y = Y - Yo z = Z - Zo
Preface Fundamentals Discontinuous Action Controller Controller Block (S)FB41 Setting the System Appendix
B3
Issued: 02/2008 Control Engineering with STEP 7