Motion commands
4.22 Chamfer, rounding (CHF, CHR, RND, RNDM, FRC, FRCM)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
197
N130 Y50
;Modal rounding N130-N140
;at F=3 mm/rev
N140 X60
...
M02
Description
Note
Chamfer/rounding
If the programmed values for chamfer (CHF/CHR) or rounding (RND/RNDM) are too large
for the associated contour elements, then the chamfer or rounding are automatically reduced
to a suitable value.
No chamfer/rounding is inserted, if
No straight or circle contour is available in the plane,
A movement is taking place outside the plane,
A plane change is taking place, or
The number of blocks - which is specified in the machine data - not containing information for
traversing (e.g., only command output), is exceeded.
Note
FRC/FRCM
FRC/FRCM has no effect if a chamfer is being machined with G0; the command can be
programmed according to the F value without error message.
The reference to the blocks, in which chamfer and rounding are programmed and to the
technology is set in machine data.
FRC is operative only if a chamfer/rounding is programmed in the same block or if RNDM
has been activated.
FRC overwrites the F or FRCM value in the current block.
The feedrate programmed under FRC must be greater than zero.
FRCM=0 activates the feed programmed in F for the chamfer/rounding.
If FRCM is programmed, the FRCM value must be reprogrammed, analogous to F, on
changeover G94<->95, etc. If only a new F value is programmed, and if FRCM > 0 before
the feed type changes, error message 10860 (no feed programmed) will be activated.
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