Returning to the contour, 4 pr ogr am r un – HEIDENHAIN TNC 426 (280 476) User Manual
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HEIDENHAIN TNC 426, TNC 430
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To go to the first block of the current program to start a block scan,
enter GOTO “0”.
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To select mid-program startup, press the RESTORE
POS AT N soft key.
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Start-up at N
: Enter the block number N at which the
block scan should end.
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Program
: Enter the name of the program containing
block N.
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Repetitions
: If block N is located in a program section
repeat, enter the number of repetitions to be
calculated in the block scan.
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To start the block scan, press the machine START
button.
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To return to the contour, see “Returning to the
Returning to the contour
With the RESTORE POSITION function, the TNC returns to the
workpiece contour in the following situations:
n
Return to the contour after the machine axes were moved during a
program interruption that was not performed with the INTERNAL
STOP function.
n
Return to the contour after a block scan with RESTORE POS AT N,
for example after an interruption with INTERNAL STOP.
n
Depending on the machine, if the position of an axis has changed
after the control loop has been opened during a program
interruption:
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To select a return to contour, press the RESTORE POSITION soft
key.
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To move the axes in the sequence that the TNC suggests on the
screen, press the machine START button.
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To move the axes in any sequence, press the soft keys RESTORE
X, RESTORE Z, etc., and activate each axis with the machine START
key.
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To resume machining, press the machine START key.