Siemens SINUMERIK Series Function Manual page 649

7) Sparking-out strokes:
● OSNSC[oscillation axis] = number of sparking-out strokes
The number of sparking-out strokes is entered into the appropriate setting data in
synchronism with the block in the main run and thus remains effective until the setting data is
next changed.
8) End position to be approached after deactivation of oscillation:
● OSE[oscillation axis] = end position of oscillation axis
The end position is entered into the appropriate setting data in synchronism with the block in
the main run and thus remains effective until the setting data is next changed. Option value 4
is implicitly set so that the set end position is approached.
9) Start position to be approached prior to activation of oscillation:
● OSB [oscillation axis] = start position of oscillation axis
The start position is entered into the appropriate setting data SD43790
$SA_OSCILL_START_POS in synchronism with the block in the main run and thus remains
effective until the setting data is next changed. Bit 9 in setting data SD43770
$SA_OSCILL_CTRL_MASK must be set to initiate an approach to the start position. The
start position is approached before reversal point 1. If the start position coincides with
reversal position 1, reversal position 2 is approached next.
As an alternative to programming command OSB, it is also possible to enter the start
position directly in setting data SD43790 $SA_OSCILL_START_POS.
All positional information in the setting data and system variables refer to the basic
coordinate system (BCS). The positional data for OSB, OSE refer to the workpiece
coordinate system (WCS).
No halt time applies when the start position is reached, even if this position coincides with
reversal position 1; instead, the axis waits for the exact stop fine signal. Any configured exact
stop condition is fulfilled.
If a non-modal oscillation process does not require an infeed motion if the start position
coincides with reversal position 1, this option can be configured with another synchronized
action (see Section "Non-modal oscillation (starting position = reversal point 1) (Page 673)").
Programming example
An example that contains all the important elements for asynchronous oscillation can be
found in Section "Example of asynchronous oscillation (Page 666)".
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
P5: Oscillation - only 840D sl
11.2 Asynchronous oscillation
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