Siemens SINUMERIK 840C Installation Instructions Manual page 192

09.95
In continuous-path operation (G64), block transitions are covered without feedrate reduction,
i.e. the path is rounded at points of discontinuity in the contour to an extent that depends on
the traversing rate.
As a result of function G62 (continuous-path operation with feedrate reduction), the tool path
feedrate is reduced to the rate entered in NC MD 3, provided the selected feedrate was
greater.
The rounding radius is thus reduced at discontinuous block transitions.
Practical application:
When the traversing rate must not become zero on a block change (exact positioning) but the
feedrate in continuous-path operation is too high.
Note:
With SW 5 and higher, separate values can be set for G620/G00, G62/G01 and G62/G36.
See MD 146*, MD 148*, MD 150*.
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Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
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3
Default value Lower input limit
500
G 62
G 64
Exact positioning
ManualsBase.com
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
Corner deceleration rate
Upper input limit
+0 100 000
Exact positioning
6FC5197- AA50
6.2 General machine data (general data)
Active on
NC Stop
Units
1 000 units/
min (IS)
6–7