Siemens sinumerik 840d Programming Manual page 407

08.97
11
840D 840D
NCU 571 NCU 572
NCU 573
Infeed in reversal area
The infeed motion must start within a reversal area
before the reversal point is reached.
These synchronized actions inhibit the infeed
movement until the oscillating axis is within the
reversal area.
The following instructions are used subject to the
above assumptions:
Reversal area 1:
WHENEVER $AA_IM[Z]>$SA_OSCILL_REVERSE_POS1[Z]+ii1 DO $AA_OVR[X]=0
Whenever
greater than
then
Reversal area 2:
WHENEVER $AA_IM[Z] <$SA_OSCILL_REVERSE_POS2[Z]+ii2 DO $AA_OVR[X]=0
Whenever
less than
then
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
11.2 Oscillation controlled via synchronized actions
FM-NC 810D 840Di
the current position of oscillating axis in the MCS is
the start of reversal area 1
set the axial override of the infeed axis to 0%.
the current position of oscillating axis in the MCS is
the start of reversal area 2
set the axial override of the infeed axis to 0%.
Oscillation
11
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