Siemens SINUMERIK 840D sl Programming Manual page 959

Define oscillation parameters
Assignment of oscillating and infeed axes: OSCILL
OSCILL[<oscillating axis>]=(<infeed axis1>,<infeed axis2>,<infeed
axis3>)
The axis assignments and the start of the oscillation movement are defined with the "OSCILL"
command.
Up to 3 infeed axes can be assigned to an oscillating axis.
Note
Before oscillation starts, the synchronization conditions must be defined for the behavior of the
axes.
Define infeeds: POSP
POSP[<infeed axis>]=(<end position>,<partial length>,<mode>)
The following are declared to the control with the "POSP" command:
● Complete infeed (with reference to end position)
● The length of the partial infeed at the reversal point or in the reversal area
● The partial infeed response when the end position is reached (with reference to mode)
Mode = 0
Mode = 1
Define motion-synchronized actions
The synchronized-motion actions listed below are used for general oscillation.
You are given example solutions for individual tasks, which you can use as modules for creating
user-specific oscillation movements
Note
In individual cases, the synchronization conditions can be programmed differentially.
Keywords
WHEN ... DO ...
WHENEVER ... DO
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
The distance-to-go to the destination point for the last two partial infeeds is divided into
two equal steps (default setting).
All partial infeeds are of equal size. They are calculated from the complete infeed.
when..., do...
whenever..., do...
Work preparation
3.18 Oscillation
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