Siemens SINUMERIK 840D sl Operating Manual page 481

● Direction "-" (minus)
● Direction "+" (plus)
The two "Minus" or "Plus" direction settings enable a workpiece to be machined with
swiveled planes. The two solutions calculated by the NC differ by 180 degrees (see rotary
axis C).
Tool
To avoid collisions, you can use the 5-axis transformation (software option) to define the
position of the tool tip during swiveling.
● Correct
● No correction
Milling
Operating Manual, 03/2013, 6FC5398-7CP40-3BA1
– Rotary axis B moves to -10 degrees in the negative direction (red arrow).
– Rotary axis C moves to 90 degrees (rotation around X!).
– Rotary axis B moves to +10 degrees in the positive direction (red arrow).
– Rotary axis C moves to 270 degrees.
The position of the tool tip is corrected during swiveling (tracking function).
The position of the tool tip is not corrected during swiveling.
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Programming technological functions (cycles)
8.6 Further cycles and functions
481