Siemens SINUMERIK 840D Function Manual page 591

5. Enable oscillation movement (see Section "Oscillation movement restarting (Page 597)").
6. Do not start partial infeed too early (see Section "Do not start partial infeed too early
(Page 598)").
U1
U2
ii1
ii2
Figure 15-1
Programming
Before the motion block that contains the assignment between the infeed and the oscillating
axis (see Section "Assignment of oscillation and infeed axes OSCILL (Page 599)"), the infeed
definition (POSP) and the motion-synchronous actions, the parameters for the oscillation must
first be defined (see Section "Influences on asynchronous oscillation (Page 581)"):
Using a WAITP [oscillating axis] (see MD30552 $MA_AUTO_GET_TYPE), the axis for
oscillation is enabled. This means that the oscillating parameters are simultaneously
transferred into the setting data. The symbolic names, e.g. $SA_REVERSE_POS1 can then be
used to program the motion-synchronous actions.
Note
For motion-synchronous actions with $SA_REVERSE_POS values, the comparison values at
the time of interpretation are valid. If setting data is changed afterwards, this has no effect.
For motion-synchronous actions with $AA_REVERSE_POS values, the comparison values
within the interpolation are valid. This ensures a reaction to the modified reversal positions.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Reversal point 1
Reversal point 2
Reversal range 1
Reversal range 2
Arrangement oscillating axis, infeed axis
15.3 Oscillation controlled by synchronized actions
P5: Oscillation
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