Siemens SINUMERIK 840D sl Programming Manual page 740

Oscillation
11.2 Oscillation controlled by synchronized actions (OSCILL)
Example
No infeed must take place at reversal point 1. At reversal point 2, the infeed is to start at a
distance of ii2 before reversal point 2 and the oscillating axis is not to wait at the reversal
point for the end of the partial infeed. Axis Z is the oscillation axis and axis X the infeed axis.
1. Parameters for oscillation
Program code
DEF INT ii2
OSP1[Z]=10 OSP2[Z]=60
OST1[Z]=0 OST2[Z]=0
FA[Z]=150 FA[X]=0.5
OSCTRL[Z]=(2+8+16,1)
OSNC[Z]=3
OSE[Z]=70
ii2=2
WAITP(Z)
740
Comments
; Define variable for reversal area 2
; Define reversal points 1 and 2
; Reversal point 1: exact stop fine
Reversal point 2: Exact stop fine
; Oscillating axis Z feedrate, infeed axis X feedrate
; Deactivate oscillating motion at reversal point 2;
after delete DTG spark-out and approach end position;
after delete DTG approach reversal position
; Sparking-out strokes
; End position = 70
; Set reversal point range
; Enable oscillation for Z axis
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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