HEIDENHAIN TNC 620 User Manual page 235

Miscellaneous functions | Miscellaneous functions for path behavior
Restrictions
After an external or internal stop, you have to use a block scan
to be able to re-approach the contour. Before the block scan, you
need to cancel M120—otherwise the control will issue an error
message.
If you want to approach the contour on a tangential path, you
must use the function APPR LCT. The NC block with APPR LCT
must contain only the coordinates of the working plane.
If you want to depart the contour on a tangential path, you must
use the function DEP LCT. The NC block with DEP LCT must
contain only the coordinates of the working plane.
Before using the following functions, you have to cancel M120
and the radius compensation:
Cycle 32 TOLERANCE
Cycle 19 WORKING PLANE
PLANE function
M114
M128
TCPM FUNCTION
HEIDENHAIN | TNC 620 | Klartext Programming User's Manual | 01/2022
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