HEIDENHAIN CNC PILOT 640 User Manual page 151

smart.Turn units | Units – Finishing
Cycle form:
Q: Start t. (default: 0)
0: Automatic – the control checks:
Diagonal approach
First X, then Z direction
Equidistant around the barrier
Omission of the first contour elements if the starting
position is inaccessible
1: First X, then Z
2: First Z, then X
3: No approach – tool is located near the starting point of
the contour area
4: Finish rem. mat.
H: Type of retraction – tool backs off at an angle below 45°
opposite the machining direction and moves to the position I, K
(default: 3)
0: Same time, to I+K
1: First X then Z, to I+K
2: First Z then X, to I+K
3: Retract by safety clear.
4: No retraction motion (tool remains on the end
coordinate)
5: Diagonal to start pos.
6: X then Z to start pos.
7: Z then X to start pos.
8: With G1 to I and K
I, K: Cycle end position X and Z – position approached at end of
cycle (I = diameter value)
D: Omit elements (see figure)
HEIDENHAIN | User's Manual smart.Turn and DIN Programming | 12/2017
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