Path Segmentation For Single Axes - Siemens sinumerik 840d Programming Manual

Punching and Nibbling
12
12.2 Automatic path segmentation
840 D
NCU 572
NCU 573
Number of SPN path segments
SPN defines the number of path segments to be
generated from the total traversing distance. The
length of the segments is calculated automatically.
Since SPN is non-modal, punching or nibbling must
be activated beforehand with PON or SON
respectively.
SPP and SPN in the same block
If you program both the path segment length (SPP)
and the number of path segments (SPN) in the
same block, then SPN applies to this block and SPP
to all the following blocks.
If SPP was activated before SPN, then it takes effect
again after the block with SPN.
Additional notes
Provided that punching/nibbling functions are
available in the control, then it is possible to program
the automatic path segmentation function with SPN
or SPP even when the punching/nibbling functions
are not in use.

12.2.2 Path segmentation for single axes

If single axes are defined as punching/nibbling axes
in addition to path axes, then the automatic path
segmentation function can be activated for them.
Response of single axis to SPP
The programmed path segment length (SPP)
basically refers to the path axes.
For this reason, the SPP value is ignored in blocks
which contain a single axis motion and an SPP
value, but not a programmed path axis.
12-422
840Di
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
Y
Y2
Y1
X1
X2
X2/Y2 Programmed traversing distance
X1 Automatically calculated segment in X
Y1 Automatically calculated segment in Y
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