B. Basic controlling principles
B−20
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
Auto−profile With auto−profile positioning, setpoint value curves for path,
speed and acceleration are generated by the CMAX. These
should enable reproducible, fast and overswing−free move
ment towards the setpoint position.
Unassigned profile When positioning with unassigned profile, the setpoint value
curves are calculated on the basis of the setpoint values pro
grammed by the user
for position, speed and acceleration.
The setpoint positioning time is the sum of the individual
times of the following phases (see Fig.B/1):
Acceleration phase
Braking phase
Phase of consistent movement
Note that the programmed speed and acceleration values are
automatically limited to implementable values depending on
the positioning stroke. The implementable maximum values
are ascertained
by the CMAX individually for each axis during
the identification travel.