Channel Axes; Path Axes; Positioning Axes - Siemens SINUMERIK 840Di sl Programming Manual

Fundamental Geometrical Principles
1.4 Axes
Axis identifier
The axis identifiers can be set in the machine data.
Standard identifiers:
X1, Y1, Z1, A1, B1, C1, U1, V1
There are also standard axis identifiers that can always be used:
AX1, AX2, ..., AXn
1.4.5

Channel axes

Channel axes are all axes, which traverse in a channel.
Axis identifier
Identifiers: X, Y, Z, A, B, C, U, V
1.4.6

Path axes

Path axes define the path and therefore the movement of the tool in space.
The programmed feed is active for this path. The axes involved in this path reach their
position at the same time. As a rule, these are the geometry axes.
However, default settings define, which axes are the path axes, and therefore determine the
velocity.
Path axes can be specified in the NC program with FGROUP, see "Path behavior".
1.4.7

Positioning axes

Positioning axes are interpolated separately, i.e., each positioning axis has its own axis
interpolator and its own feedrate. Positioning axes do not interpolate with the path axes.
Positioning axes are traversed by the NC program or the PLC. If an axis is to be traversed
simultaneously by the NC program and the PLC, an error message appears.
Typical positioning axes are:
• Loaders for moving workpieces to machine
• Loaders for moving workpieces away from machine
• Tool magazine/turret
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Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals