Siemens SINUMERIK 840D sl Operating Manual page 235

Sequence
1. Start of the cycle at the current position of the oscillating axis.
2. Traversing of the infeed axis to the infeed depth at the start P1 <S_I> with the feedrate for
infeed P5 <S_R>.
3. Sparking out with the sparking-out time P7 <S_P>.
4. Traversing of the oscillating axis with the grinding width P4 <S_A> as travel path and the
feedrate for transverse infeed P6 <S_F>.
5. Traversing of the infeed axis to the infeed depth at the end P2 <S_J> with the feedrate for
infeed P5 <S_R>.
6. Sparking out with the sparking-out time P7 <S_P>.
7. Traversing of the oscillating axis with the grinding width P4 <S_A> as travel path to the
starting point and the feedrate for transverse infeed P6 <S_F>.
The sequence cannot be interrupted with a single block.
The sequence is repeated until the total infeed depth P3 <S_K> has been reached. The last
stroke is then distributed unevenly.
Figure 9-9
Grinding
Operating Manual, 05/2017, A5E40869190
Total infeed depth reached with infeed at the second reversal point
Programming technology functions
9.4 Oscillating cycles (CYCLE4071 ... CYCLE4079)
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