Synchronized Axes - Siemens Sinumerik 840D sl Programming Manual

Typical positioning axes are:
● Loaders for moving workpieces to the machine
● Loaders for moving workpieces away from the machine
● Tool magazine/turret
Types
A distinction is made between positioning axes with synchronization at the block end or over
several blocks.
POS axes
Block change occurs at the end of the block when all the path and positioning axes
programmed in this block have reached their programmed end point.
POSA axes
The movement of these positioning axes can extend over several blocks.
POSP axes
The movement of these positioning axes for approaching the end position takes place in
sections.
Note
Positioning axes become synchronized axes if they are traversed without the special POS/
POSA identifier.
Continuous-path mode (G64) for path axes is only possible if the positioning axes (POS) reach
their final position before the path axes.
Path axes programmed with POS/POSA are removed from the path axis grouping for the
duration of this block.
For more information about POS, POSA, and POSP, see "Traverse positioning axes (POS,
POSA, POSP, FA, WAITP, WAITMC) (Page 105)".
16.1.8

Synchronized axes

Synchronized axes traverse synchronously to the path from the start position to the
programmed end position.
The feedrate programmed in F applies to all the path axes programmed in the block, but does
not apply to synchronized axes. Synchronized axes take the same time as the path axes to
traverse.
A synchronized axis can be a rotary axis, which is traversed synchronously to the path
interpolation.
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Other information
16.1 Axes
373