HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 306)

HEIDENHAIN TNC 410, TNC 426, TNC 430 291
Returning to the contour
With the RESTORE POSITION function, the TNC
returns to the workpiece contour in the following
situations:
■ Return to the contour after the machine axes
were moved during a program interruption that
was not performed with the INTERNAL STOP
function.
■ Return to the contour after a block scan with
RESTORE POS AT N, for example after an
interruption with INTERNAL STOP.
■ For the TNC 426, TNC 430 with NC software 280
474-xx,
Depending on the machine, if the position of an
axis has changed after the control loop has been
opened during a program interruption:
ú To select a return to contour, press the RESTORE
POSITION soft key.
ú To move the axes in the sequence that the TNC
suggests on the screen, press the machine
START button.
ú 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.
ú To resume machining, press the machine START
key.
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