Siemens SINUMERIK 840D sl Operating Manual page 629

Computerized numerical controllers

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Operating Manual, 02/2012, 6FC5398-8CP40-3BA0

Indexing angle: After the first hole has been drilled, all additional positions are

approached at this angle (only for pitch circle).

Positive angle: Additional positions are rotated in counterclockwise direction.

Negative angle: Additional positions are rotated in clockwise direction.

Number of positions on circle

Working with a B axis

14.6 Position pattern

Sinumerik 828d turning