Siemens SINUMERIK 840D sl Function Manual page 791

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Brief description

Machine axes

Machine axes are the axes that actually exist on a machine tool.

Channel axes

Every geometry axis and every special axis is assigned to a channel and, therefore, a

channel axis. Geometry axes and additional axes are always traversed in "their" channel.

Geometry axes

The three geometry axes always make up a fictitious rectangular coordinate system, the

basic coordinate system (BCS).

By using FRAMES (offset, rotation, scaling, mirroring), it is possible to image geometry axes

of the workpiece coordinate system (WCS) on the BCS.

Special axes

In contrast to geometry axes, no geometrical relationship is defined between the special

Path axes are interpolated together (all the path axes of a channel have a common path

interpolator).

All the path axes of one channel have the same acceleration phase, constant travel phase

and delay phase.

Positioning axes

Positioning axes are interpolated separately (each positioning axis has its own axis

interpolator). Each positioning axis has its own feedrate and acceleration characteristic.

Basic logic functions: Axes, coordinate systems, frames (K2)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

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