Siemens sinumerik 840d Programming Manual page 408

Oscillation
11
11.2 Oscillation controlled via synchronized actions
840D 840D
NCU 571 NCU 572
NCU 573
Infeed at reversal point
As long as the oscillating axis has not reached the
reversal point, no movement takes place on the infeed
axis.
The following instructions are used subject to the
above assumptions:
Reversal point 1:
WHENEVER $AA_IM[Z]<>$SA_OSCILL_REVERSE_POS1[Z] DO $AA_OVR[X]=0 ->
-> $AA_OVR[Z]=100
Whenever
greater or less than
then
and
Reversal point 2:
For reversal point 2:
WHENEVER $AA_IM[Z]<>$SA_OSCILL_REVERSE_POS2[Z] DO $AA_OVR[X]=0 ->
-> $AA_OVR[Z]=100
Whenever
greater or less than
then
and
11-408
FM-NC 810D 840Di
the current position of oscillating axis Z in the MCS is
the position of reversal point 1
set the axial override of infeed axis X to 0%
set the axial override of oscillating axis Z to 100%.
the current position of oscillating axis Z in the MCS is
the position of reversal point 2
set the axial override of infeed axis X to 0%
set the axial override of oscillating axis Z to 100%.
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
08.97
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