Lenze Cam Designer Professional getting started - Handbuch (Seite 68)

Cam Designer Professional
L
66 Cam Designer Professional DE/EN 2.0
Functions provided for working in Curve Mode:
View➞ ➞ ➞ ➞ Curve Mode Switch to Curve Mode (level 2).
Edit➞ ➞ ➞ ➞ Start Calculation Start automatic calculation of connection segments.
• Before the calculation, it is checked whether the input data
are correct. Overlapping segments, vertical segments or
segments with the same position on the master axis but a
different slave position are not permitted.
Edit➞ ➞ ➞ ➞ Point Acceleration Change the acceleration value of a point object. Change the acceleration value of a point object.
• Position the mouse pointer above a point object on the
worksheet and click the left mouse button. A dialog box
opens in which you can select the acceleration.
• If the point is connected to polynomials, their shape
changes as you change the acceleration.
Turning points
Turning points have the specific feature that although the location of the point in the master slave
coordinate system and the velocity are known (v=0), the acceleration is unknown. In Cam Designer you
can either specify the acceleration manually or let the system calculate the acceleration automatically.
• Check Selfadjusting Acceleration in the Properties dialog to allow automatic calculation of
acceleration. Cam Designer calculates the acceleration value such that the polynomial curves
which are connected to the turning point have the same jolt value (third derivation of the
position). This results in the best possible acceleration curve.
• In some cases, it may be necessary to adjust the automatically calculated acceleration.
Undershoot or overshoot may occur with strongly asymmetrical flanks. If you disable
Selfadjusting Acceleration in the Properties dialog, you can select the required acceleration
manually.
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