HEIDENHAIN TNC 620 User Manual page 455

Multiple-axis machining | The PLANE function: Tilting the working plane (option 8)
With the SEQ function, you select one of the possible solutions
relative to the home position of the master axis:
SEQ+ positions the master axis in the positive tilting range
relative to the home position
SEQ- positions the master axis in the negative tilting range
relative to the home position
If the solution you have selected with SYM (SEQ) is not within the
machine's range of traverse, then the control displays the Entered
angle not permitted error message.
If the PLANE AXIAL function is used, the SYM (SEQ)
function has no effect.
If you do not define SYM (SEQ), then the control determines the
solution as follows:
1 Check whether both possible solutions are within the traverse
range of the rotary axes
2 Two possible solutions: Based on the current position of the
rotary axes, choose the possible solution with the shortest path
3 One possible solution: Choose the only solution
4 No possible solution: Issue the error message Entered angle not
permitted
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
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