Festo Контроллер позиционирования CPX-CMAX - Manual (Page 369)

B. Basic controlling principles
B−27
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
B.7.2 Optimize positioning behaviour
During identification the positioning behaviour is auto−optiĆ
mised. If the quality of the positioning behaviour still does
not fulfil expectations, proceed as follows:
ć Check the parametrising (FCT).
ć Check the controller settings.
Note
Incorrect parameters may destroy the drive.
· Be very careful when setting the parameters.
If fluctuations in pressure of over 1 bar occur in front of the
proportional directional control valve, install a compressed
air reservoir (see CMAX system description). Please observe
the general installation instructions!
The following problems may typically occur during positionĆ
ing:
ć The axis stops prematurely on several occasions,
ć Swinging around the setpoint position,
ć Stability problem, higher−frequency swinging around the
setpoint position,
ć Overswing,
ć Underswing.