Multiple-Axis Machining | The PLANE function: Tilting the working plane (option 8)
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HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2017
Selection of alternate tilting possibilities: SEQ +/– (entry
optional)
The orientation you define for the working plane is used by the
control to calculate the appropriate position of the rotary axes on
your machine. In general, there are always two possible solutions.
Use the SEQ switch to specify which possible solution the control
should use:
SEQ+ positions the master axis so that it assumes a positive
angle. The master axis is the first rotary axis going out from the
tool or the last rotary axis going out from the table (depending
on the machine configuration)
SEQ– positions the master axis so that it assumes a negative
angle.
If the solution you chose with SEQ is not within the machine’s
range of traverse, the control displays the Entered angle not
permitted error message.
When the function is used, the switch is nonfunctional.
If you do not define SEQ, the control determines the solution as
follows:
1 The control first checks whether both possible solutions are
within the traverse range of the rotary axes.
2 If they are, then the control selects the shortest possible
solution based on the current position of the rotary axes.
3 If only one solution is within the traverse range, the control
selects this solution
4 If neither solution is within the traverse range, the control
displays the Entered angle not permitted error message.
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