Siemens Sinumerik 840D sl Programming Manual page 206

Glossary
REPOS
1. Repositioning to the contour, triggered by the operator
2. Programmed repositioning to the contour
Revolutional feedrate
The axis feedrate is set in the channel as a function of the main spindle speed (programming
with G95).
Rigid tapping
This function is used for tapping without compensating chuck. In this case, the spindle is
controlled as an interpolatory rotary axis with the effect that the threads are drilled up to the
final drilling depth, e.g. in tapping of blind holes (precondition: Spindle is operated as axis).
Rotary axis
Rotary axes are used to rotate the tool or workpiece by a certain angle.
Rotary axis, continuously turning
The traversing range of a rotary axis can be set either to a modulo value (can be adjusted
via machine data) or as endlessly turning in both directions, depending on the relevant
application. Endlessly turning rotary axes are used e.g. for non-circular machining, grinding
and winding jobs.
Rotation
Component of a -> frame which defines a rotation of the coordinate system through a
specific angle.
Rounding axis
Rounding axes enable the workpiece or tool to turn by a certain angle that is stored in the
indexing grid. The rounding axis is "in position" when the latching is reached.
R-parameters
R-parameters. The programmer can assign or query the values of the R-parameters, if
necessary in the -> part program.
206
REPOS can be used to reset the tool to the interruption point with direction keys.
A selection of approach strategies is available in the form of program commands:
Approaching the interruption point, approaching the starting block, approaching the last
block, approaching a point on the path between block start and interruption point.
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling