Siemens sinumerik 840D sl Operating Manual page 205

The retraction for a cycle ends at the safety clearance. Only the subsequent cycle moves to
the retraction plane. This enables a special approach/retraction cycle to be used.
Changes to the retraction plane therefore take effect when retracting from the previous
machining operation.
When selecting the traversing paths, the tool tip is always taken into account; i.e. the tool
expansion is not considered. Therefore, you should ensure that the retraction planes are an
appropriate distance away from the workpiece.
See also
Changing program settings (Page 217)
Programming the approach/retraction cycle (Page 227)
Creating a new workpiece (Page 591)
Turning
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Creating a ShopTurn program
7.5 Creating a ShopTurn program
205