10 Cutter Radius Compensation (CRC), Tool Nose Radius Compensation (TNRC) 05.91
10.10 Special cases for CRC/TNRC
The following applies to external contours with circle transitions and obtuse angles:
N40
R
X2
X1
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X1, Y1 < d
Compensating
movement cut short,
i.e. traverse is direct
from A to C.
a
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X1, X2, Y1, Y2, < d
R
E
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A
No compensating
movement. The
correct compensation
is not obtained until
the end (E) of the
block.
N45
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Contour
error
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Contour
error
In order to prevent a conditional stop in continuous path mode due to intermediate blocks
which are too small, distances AB and BC can be omitted by the NC.
The course of the path in this case depends on tolerance d defined on start-up (max. 2000
units).
10–16
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HD02
SINUMERIK 880, (PG)
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