Te7: Continue Machining At The Contour (Retrace Support) - 840D Sl Only; Brief Description - Siemens SINUMERIK 840D sl Function Manual

TE7: Continue machining at the contour (retrace
support) - 840D sl only
19.1

Brief description

Function
The "Continue machining - Retrace support (RESU)" technological function supports the
retracing of uncompleted 2-dimensional machining processes such as laser cutting, water jet
cutting, etc.
In the event of a fault during the machining process, e.g. loss of the laser, RESU can be used
even by machine operators who do not have specific knowledge of the active part program to
interrupt machining and travel back along the contour from the interruption point to a program
continuation point necessary for machining purposes.
After reaching the "continue machining" point, the machine operator triggers the re-machining.
As part of the retrace process, an implicit block search takes place along the contour with
calculation followed by repositioning on the contour and automatic retracing of the part program
machining process.
The retrace option is selected and deselected in advance using part program commands within
the machining program. The program continuation point can be selected at any position within
the contour ranges specified in this way.
Figure 19-1
Precise retracing of contours is possible on all programmed contours comprising straight and
circular elements. During retracing, other programmed contour elements such as splines or
automatically inserted non-linear contour elements (circle, parable, etc. e.g. through tool radius
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Programmed contour with program continuation and interruption points
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