Siemens SINUMERIK 840D sl Programming Manual page 516

Oscillation
11.2 Control oscillation via synchronized actions
2. Motion-synchronous action
WHENEVER $AA_IM[Z]<$SA_OSCILL_REVERSE_POS2[Z]DO ->
-> $AA_OVR[X]=0 $AC_MARKER[0]=0
Whenever
less than
then
and
WHENEVER $AA_IM[Z]>=$SA_OSCILL_REVERSE_POS2[Z] DO $AA_OVR[Z]=0
Whenever
greater or equal to
then
WHENEVER $AA_DTEPW[X] == 0 DO $AC_MARKER[0]=1
Whenever
equal to
then
WHENEVER $AC_MARKER[0]==1 DO $AA_OVR[X]=0 $AA_OVR[Z]=100
Whenever
equal to
then
-> must be programmed in a single block
3. Start oscillation
OSCILL[Z]=(X) POSP[X]=(5,1,1) ;Start the axes
M30
Description
1. Define oscillation parameters
2. Define motion-synchronized actions
3. Assign oscillating and infeed axes as well as partial and complete infeed.
11-8
The parameters for oscillation should be defined before the movement block containing
the assignment of infeed and oscillating axes and the infeed definition (see
"Asynchronized oscillation").
The following synchronization conditions can be defined:
Suppress infeed until the oscillating axis is located within a reversal area
(ii1, ii2) or at a reversal point (U1, U2).
Stop oscillation motion during infeed at reversal point.
Restart oscillation movement on completion of partial infeed. Define
start of next partial infeed.
the current position of oscillating axis Z in the MCS is
the start of reversal area 2
set the axial override of infeed axis X to 0%
set the marker with index 0 to value 0.
the current position of oscillating axis Z in the MCS is
reversal position 2 is
set the axial override of oscillating axis Z to 0%.
the distance-to-go of the part infeed
is
set the marker with index 0 to value 1.
the flag with index 0
is
set the axial override of infeed axis X to 0% in order to
inhibit premature infeed (oscillating axis Z has not yet
left reversal area 2 but infeed axis X is ready for a new
infeed)
set the axial override of oscillating axis Z to 100% (this
cancels the 2nd synchronized action).
;Assign axis X as the infeed axis for oscillating
;axis Z.
;Axis X is to travel to end position 5 in steps of 1.
;End of program
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
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