Siemens SINUMERIK 840D sl Programming Manual page 650

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Table of Contents

Axis around which the tool spindle describes a controlled rotational and positioning

The C-spline is the most well-known and widely used spline. The transitions at the

interpolation points are continuous, both tangentially and in terms of curvature. 3rd order

polynomials are used.

A channel is characterized by its ability to execute a -> parts program independently of other

channels. A channel exclusively controls the axes and spindles assigned to it. Parts

programs run on various channels can be coordinated by -> synchronization.

Channel structure

The channel structure enables the -> programs of the individual channels to be executed

simultaneously and asynchronously.

Circular interpolation

The -> tool is required to travel in a circle between defined points on the contour at a

specified feedrate while machining the workpiece.

Component of the NC control for the implementation and coordination of communication.

Compensation axis

Axis with a setpoint or actual value modified by the compensation value

Compensation table

Table containing interpolation points. It provides the compensation values of the

compensation axis for selected positions on the basic axis.

Compensation value

Difference between the axis position measured by the position sensor and the desired,

programmed axis position.

Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0

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