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

Several Operator Panels on Several NCUs, Distributed Systems (B3)
Brief description
2.1.4.7

NCU link with different interpolation cycles

Function
An extension of the link concept whereby NCUs are connected to link modules with different
interpolation cycle settings offers additional application possibilities. This functionality is also
called "Fast IPO link", because when different cycles are set, one of the connected NCUs
has the fastest interpolation cycle.
Application guideline
Whereas the NCU/NCUs with a standard interpolation cycle operate(s) axes and spindles
with standard requirements with respect to dynamic performance and accuracy, the
NCU/NCUs with a faster interpolation cycle operate(s) one or a small number of axes with
higher requirements with respect to dynamic performance and accuracy.
Examples:
Eccentric turning (cams, pistons, etc.)
● C and Z axes: standard requirements
● X axis: high requirements with respect to dynamic performance and accuracy
Figure 2-11 NCU link with different interpolation cycles
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Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions