Siemens SINUMERIK 840D sl Operating Manual page 399

This limit has the same effect during roughing and finishing.
Example of the limit in longitudinal external machining
Figure 10-7
Figure 10-8
Feedrate interruption
To prevent the occurrence of excessively long chips during machining, you can program a
feedrate interruption. Parameter DI specifies the distance after which the feedrate interruption
should occur.
The interruption time or retraction distance is defined in machine data.
Residual material machining / naming conventions
G code program
For multi-channel systems, cycles attach a "_C" and a two-digit number of the specific channel
to the names of the programs to be generated, e.g. for channel 1 "_C01".
Turning
Operating Manual, 05/2017, A5E40868721
Permitted limit: Limit line XA is outside the contour of the blank
Impermissible limit: Limit line XA is inside the contour of the blank
Machine manufacturer
Please observe the information provided by the machine manufacturer.
Programming technology functions (cycles)
10.3 Contour turning
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