Siemens SINUMERIK 840D sl Function Manual page 36

Detailed description
2.2 Functions
2.2.2 Settings for involute interpolation
Introduction
The involute of the circle is a curve traced out from the end point on a "piece of string"
unwinding from the curve. Involute interpolation allows trajectories along an involute.
Figure 2-6
Programming
A general description of how to program involute interpolation can be found in:
References:
/PG/Programming Manual Fundamentals
In addition to the programmed parameters, machine data are relevant in two instances of
involute interpolation; these data may need to be set by the machine manufacturer/end user.
30
Involute (unwound from base circle)
Basic logic functions: Various NC/PLC interface signals and functions (A2)
Φ
Φ
Function Manual, 11/2006, 6FC5397-0BP10-2BA0