Motion Commands; General Notes - Siemens SINUMERIK 840Di sl Programming Manual

Motion commands

4.1

General notes

In this section you will find a description of all the travel commands you can use to machine
workpiece contours.
These travel commands with the associated parameters enable you to program quite
different workpiece contours for milling and also for turning.
Travel commands for programmable workpiece contours
The programmed workpiece contours are composed of straight lines and circular arcs.
A helix can be produced by combining these two elements.
Executed in succession, these contour elements produce the workpiece contour.
A programming example is given for each travel command.
Programming more complex sequences of motions is also discussed. These are also
described with the possible variants or special cases.
The positional data contain all necessary geometric data serving for an unequivocal
representation of the positions in the corresponding coordinate systems. These are:
• Travel commands with specification of coordinates
• Rapid traverse movements to the end point
• Linear interpolation 3D surface processing
• Circular interpolation for full circles or circular arcs
• Helical interpolation
• Involute interpolation
• Thread cutting and tapping
• Interruptions both of approaching certain positions and traveling to these
• Special turning functions
• Chamfering or rounding off contour corners
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
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