Motion Commands; General Information About The Travel Commands - Siemens SINUMERIK 840D sl Programming Manual

Motion commands

9.1

General information about the travel commands

Contour elements
The programmed workpiece contour can be made up of the following contour elements:
• Straight lines
• Circular arcs
• Helical curves (through overlaying of straight lines and circular arcs)
Travel commands
The following travel commands are available for the creation of these contour elements:
• Rapid traverse motion (G0)
• Linear interpolation (G1)
• Circular interpolation clockwise (G2)
• Circular interpolation counterclockwise (G3)
The travel commands are modal.
Target positions
A motion block contains the target positions for the axes to be traversed (path axes,
synchronized axes, positioning axes).
The target positions can be programmed in Cartesian coordinates or in polar coordinates.
CAUTION
The axis address may only be programmed once per block.
Starting point - target point
The traversing motion is always for the last point reached to the programmed target position.
This target position is then the starting position for the next travel command.
Fundamentals
Programming Manual 09/2011, 6FC5398-1BP40-2BA0
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