Tolerance For G0 Motion (Stolf) - Siemens Sinumerik 840D sl Programming Manual

Path traversing behavior

8.9 Tolerance for G0 motion (STOLF)

8.9 Tolerance for G0 motion (STOLF)
G0 tolerance factor
G0 motion (rapid traverse, infeed motion), contrary to workpiece machining, can be
implemented with a higher tolerance. This has the advantage that the execution times for G0
motion are shortened.
For G0 motion, the tolerances are set by configuring the G0 tolerance factor
(MD20560 $MC_G0_TOLERANCE_FACTOR).
The G0 tolerance factor is only effective, if:
• One of the following functions is active:
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-
-
-
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• several ( ≥ 2) consecutive G0 blocks.
For a single G0 block, the G0 tolerance factor is not effective, as at the transition from a
non G0 motion to a G0 motion (and vice versa), the "lower tolerance" always applies
(workpiece machining tolerance)!
Function
The configured G0 tolerance factor (MD20560) can be temporarily overwritten by
programming STOLF in the part program. In this case, the value in MD20560 is not changed.
After a reset or end of part program, the configured tolerance factor is effective again.
Syntax
STOLF=<tolerance factor>
Meaning
STOLF:
<tolerance factor>:
504
Compressor function: COMPON, COMPCURV and COMPCAD
Smoothing functions: G642 and G645
Orientation smoothing: OST
Orientation smoothing: ORISON
Smoothing for path-relevant orientation: ORIPATH
Command to program the G0 tolerance factor
G0 tolerance factor
The factor can either be greater than 1 or less than 1.
However, normally higher tolerances can be set for G0 motion.
For STOLF=1.0 (this corresponds to the configured standard
value), for G0 motion, the same tolerances are effective as for
non-G0 motion.
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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