Stop Oscillation Movement At The Reversal Point - Siemens SINUMERIK 840D Function Manual

P5: Oscillation
15.3 Oscillation controlled by synchronized actions
Combinations
Infeed at two sides
● Reversal point 1 - reversal point 2
● Reversal point 1 - reversal range 2
● Reversal range 1 - reversal point 2
● Reversal range 1 - reversal range 2
One-sided infeed
● Reversal point 1
● Reversal point 2
● Reversal range 1
● Reversal range 2
(See Section "Infeed at reversal point 1 or 2 (Page 593)" and "Infeed in reversal point range
(Page 594)")
15.3.4

Stop oscillation movement at the reversal point

Function
Reversal point 1:
Every time the oscillation axis reaches reversal position 1, it must be stopped by means of the
override and the infeed movement started.
Application
The synchronized action is used to hold the oscillation axis stationary until partial infeed has
been executed. This synchronized action can be omitted if the oscillation axis need not wait at
reversal point 1 until partial infeed has been executed. At the same time, this synchronized
action can be used to start the infeed movement if this has been stopped by a previous
synchronized action which is still active.
Programming
WHENEVER $AA_IM[oscillation axis] ==
$SA_OSCILL_REVERSE_POS1[oscillation axis]
DO $AA_OVR[oscillation axis] = 0
Explanation of system variables
$AA_IM[ oscillation axis ]: Current position of oscillation axis
$SA_OSCILL_REVERSE_POS1[ oscillation axis ]: Reversal point 1 of the oscillation
axis
$AA_OVR[ oscillation axis]: Axial override of the oscillation axis
596
$AA_OVR[infeed axis] = 100
Function Manual, 06/2019, A5E47437747B AA
Axes and spindles