Siemens SINUMERIK Series Function Manual page 644

P5: Oscillation - only 840D sl
11.2 Asynchronous oscillation
● The feedrate can be influenced by the override (axial NC/PLC interface signal and
● If Dry Run is active, the dry run velocity setting is applied if it is higher than the currently
● The velocity overlay / path overlay can be influenced by the handwheel (see following
● The oscillation axis can be moved with reversal feed.
Reversal feed
The reversal feed can also be used for oscillation axes.
Reversal points
The positions of the reversal points can be entered via setting data before an oscillation
movement is started or while one is in progress.
● The reversal point positions can be entered by means of manual travel (handwheel, JOG
The following applies to alteration of a reversal point position: When an oscillation movement
is already in progress, the altered position of a reversal point does not become effective until
this point is approached again. If the axis is already approaching the position, the correction
will take effect in the next oscillation stroke.
Note
If a reversal point must be altered at the same time as NC/PLC interface signal DB21, ...
DBX0.3 ("Activate DRF") is set, the handwheel signals are applied both to the DRF offset
and to the offset of the reversal point, i.e. the reversal point is shifted absolutely by an
amount corresponding to twice the distance.
Stop times
A stop time can be programmed via setting data for every reversal point.
The setting can be changed in the following blocks of the NC program. It is then effectively
block synchronous from the next reversal point.
Stop time can be changed asynchronously via setting data. It is then effective from the
instant that the appropriate reversal point is next traversed.
644
programmable).
programmed velocity.
Activation of the dry run feed entered in SD42100 $SC_DRY_RUN_FEED can be
controlled with SD42101 $SC_DRY_RUN_FEED_MODE.
References:
Function Manual, Basic Functions; Feedrates (V1)
table and Section "H1: Manual and handwheel travel (Page 143)").
keys) before or in the course of an oscillation movement, regardless of whether the
oscillation movement has been interrupted or not.
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions