Ncu Link With Different Interpolation Cycles - Siemens SINUMERIK 840D sl Function Manual

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
2.12

NCU link with different interpolation cycles

2.12
Problem description
In the engineering world, parts which deviate slightly from a precise round/cylindrical shape
are also required. (Example: Pistons that are oval in the manufacturing state. The operating
temperature gives them their required almost round shape during use). Eccentric shapes
include, e.g.:
● Oval shapes
● Trefoil shapes
● Cams
● More complex shapes
If you want to manufacture parts belonging to this category cost-effectively on turning
machines, you can use the link functions described below, which are an extension of the link
functions described in "NCU link" and the following sections. The supplementary conditions
must be complied with, however.
Figure 2-30
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Example of oval eccentric turning
2.12 NCU link with different interpolation cycles
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