Infeed At Reversal Point 1 Or 2 - Siemens SINUMERIK 840D sl Function Manual

12.3.1

Infeed at reversal point 1 or 2

Function
As long as the oscillation axis has not reached the reversal point, the infeed axis does not
move.
Application
Direct infeed in reversal point
Programming
For reversal point 1:
WHENEVER $AA_IM[Z] <> $SA_OSCILL_REVERSE_POS1[Z]
DO $AA_OVR[X] = 0 $AA_OVR[Z] = 100
For reversal point 2:
WHENEVER $AA_IM[Z] <> $SA_OSCILL_REVERSE_POS2[Z]
DO $AA_OVR[X] = 0 $AA_OVR[Z] = 100
Explanation of system variables:
$AA_IM[Z]: Current position of oscillating axis Z in the MCS
$SA_OSCILL_REVERSE_POS1[Z]: Position of the reversal point1 of the oscillation axis
$AA_OVR[X]: Axial override of the infeed axis
$AA_OVR[Z]: Axial override of the oscillation axis
Explanation of key words:
WHENEVER ... DO ... Whenever condition is fulfilled, then ...
Infeed
The absolute infeed value is defined by instruction POSP.
See Chapter "Defining Infeed POSP".
Assignment
The assignment between the oscillation axis and the infeed axis is defined by instruction
OSCILL.
See Chapter "Assignment of Oscillating and Infeed Axes OSCILL".
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
P5: Oscillation - only 840D sl
12.3 Oscillation controlled by synchronized actions
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