HEIDENHAIN 548431-05, User Manual, Page: 174 / 722

Teach-in | Working with cycles
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
Contour follow-up in Teach-in submode
The contour follow-up function updates the originally defined
workpiece blank with every machining step. The turning cycles take
the current contour of the workpiece blank into account for the
calculation of infeed and machining paths. Air cuts are avoided and
approach paths optimized.
To activate contour follow-up in
Teach-in
submode, program a
workpiece blank and select "With contour follow-up" in the RG
parameter.
Further information: "Workpiece blank cycles", Page 181
When contour follow-up is active, you can also use
modal functions, such as interrupted feed or datum shift.
Contour follow-up can only be used for turning
operations and centric drilling.
Cycle run with active contour follow-up ( RG : 1):
Pressing the
NC start
key initiates a search for the selected
cycle for mid-program startup
The next
NC start executes the M commands (e.g. direction of
rotation)
The next
NC start
positions the tool to the last programmed
coordinates (e.g. tool change point)
The next
NC start runs the selected cycle
Cycle keys
You can execute a programmed Teach-in cycle by pressing the
NC start
key.
NC stop
interrupts a running cycle. If
NC stop
is
pressed during thread cutting, the tool is lifted off the contour and
then stopped. The cycle has to be restarted.
During a cycle interruption you can:
Resume cycle execution with the
NC start
key. The control
will always resume execution of the cycle at the point of
interruption, even if you have moved the axes in the meantime
Move the axes with the manual direction keys or the handwheel
Terminate the machining process with the
BACK soft key