Feedrate Reduction With Corner Deceleration (Fendnorm, G62, G621) - Siemens SINUMERIK 840D sl Programming Manual

Work preparation
3.7 Special motion commands
Reserved G command calls
The following G command calls are reserved for OEM users:
● OEMIPO1, OEMIPO2 (from G group 1)
● G810 ... G819 (G group 31)
● G820 ... G829 (G group 32)
Their functionality is incorporated by means of compile cycles.
Functions and subprograms
OEM users can also set up predefined functions and subprograms with parameter transfer.
Note
Workpiece simulation
Up to SW 4.4, no compile cycles were supported, as of SW 4.4, only selected compile cycles
(CC) are supported for the workpiece simulation.
Language commands in the part program of compile cycles that are not supported
(OMA1 ... OMA5, OEMIPO1/2, G810 ... G829, own procedures and functions) - therefore result
in an alarm message and cancellation of the simulation without any individual handling.
Solution: Individually handle the missing CC-specific language elements in the part program
($P_SIM query).
Example:
N1 G01 X200 F500
IF (1==$P_SIM)
N5 X300 ;not active for CC simulation
ELSE
N5 X300 OMA1=10
ENDIF
3.7.10

Feedrate reduction with corner deceleration (FENDNORM, G62, G621)

With automatic corner deceleration the feed rate is reduced according to a bell-shaped curve
before reaching the corner. It is also possible to parameterize the extent of the tool behavior
relevant to machining via setting data.
● Start and end of feed rate reduction
● Override with which the feed rate is reduced
● Detection of a relevant corner
Relevant corners are those whose inside angle is less than the corner parameterized in the
setting data.
Default value FENDNORM deactivates the function of the automatic corner override.
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Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming