K2: Axis Types, Coordinate Systems, Frames; Brief Description; Axes - Siemens SINUMERIK 840D sl Function Manual

K2: Axis Types, Coordinate Systems, Frames

10.1

Brief description

10.1.1

Axes

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 axes.
Path axes
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.
Synchronized axes
Synchronous axes are interpolated together with path axes (all path axes and synchronous
axes of one channel have a common path interpolator).
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
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