111
8 Operation
8.5 Operating the controllers
How to operate the 4 different operating modes (automatic mode, manual mode,
hold mode and self-optimization) is described in the following 4 subchapters.
NOTE!
Since the automatic control mode is of prime importance in the case of control-
lers,
correct configuration of the individual controller and its parameterization (ad-
justment of the control response) are very important for achieving good pro-
cess
value stability.
Before starting up a controller channel, ensure that all settings in the configu-
ration and the parameterization are
correct.
⇨ "Operating the controllers", page 111
⇨ Chapter 9.2 "Parameter Sets (Controller parameter)", page 128
NOTE!
In most cases, the parameterization are made automatically with the aid of
self-optimization. In exceptional cases, however, it may be necessary to deter-
mine
the controller parameters experimentally or to calculate them and then enter
them into the controller's parameter sets manually.
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