Festo Контроллер позиционирования CPX-CMAX - Manual (Page 361)

B. Basic controlling principles
B−19
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
B.5 Basic information on position control
The basis for control of the pneumatic axes is a model control
path stored in the CMAX. This model assumes a pneumatic
axis which is built up in accordance with specifications, e.g.
with regard to:
ć the compressed air provided
ć the valve−cylinder combination used
ć the permitted mass load
ć tube sizes and lengths, etc.
The basic parameters of this control path are:
ć the axis and application data,
ć internal data ascertained by the identification and by
adaptation.
Identification During commissioning, variables such as the maximum
achievable speed, acceleration ability, static friction and
valve characteristics are ascertained based on a dynamic
and static identification travel.
Adaptation With adaptation, the positioning behaviour is continuously
monitored during operation. Internal controller data is
adapted here to the actual state of the axis, e.g. in order to
compensate for system wear etc. during the service period.