
PROGRAMMING5. FEED FUNCTIONS
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Regarding program (2) of an arc, the feedrate is overridden from point a
to point b and from point c to point d (Fig. 5.4.2.1 (d)).
c
da
LsLe
b
Ls Le
(2)
Programmed path
Cutter center path
Tool
Fig. 5.4.2.1 (d) Override Range (Straight Line to Arc, Arc to Straight Line)
An override value is set with parameter No. 1712. An override value is
valid even for dry run and F1–digit specification.
In the feed per minute mode, the actual feedrate is as follows:
F × (automatic override for inner corners) × (feedrate override)
Override for inner corners is disabled during acceleration/deceleration
before interpolation.
Override for inner corners is disabled if the corner is preceded by a
start–up block or followed by a block including G41 or G42.
Override for inner corners is not performed if the offset is zero.
Override value
Limitations
D Acceleration/deceleratio
n before interpolation
D Start–up/G41, G42
D Offset