B.7.2 Optimize Positioning Behaviour - Festo CPX Series Manual

B. Basic controlling principles

B.7.2 Optimize positioning behaviour

Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
During identification the positioning behaviour is auto−opti
mised. If the quality of the positioning behaviour still does
not fulfil expectations, proceed as follows:
Check the parametrising (FCT).
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 position
ing:
The axis stops prematurely on several occasions,
Swinging around the setpoint position,
Stability problem, higher−frequency swinging around the
setpoint position,
Overswing,
Underswing.
B−27