Siemens SINUMERIK 840D sl Function Manual page 465

Figure 11-8
Changes in orientation
Based on the above observations, a different behavior also results when the orientation of the
machining head is changed while the clearance control is active.
In the following diagram the normal case is shown on the left (compensation vector == tool
orientation vector); and the case with the programmed compensation vector is shown on the
right.
Figure 11-9 Change in orientation of the machining head
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Programmable compensation vector
TE1: Clearance control
11.2 Clearance control
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