HEIDENHAIN TNC 620 Programming Station

Tools | Tool compensation
Contouring with radius compensation: RR and RL
RR: The tool moves to the right of the programmed contour
RL: The tool moves to the left of the programmed contour
The tool center moves along the contour at a distance equal to the
radius. Right or left are to be understood as based on the direction
of tool movement along the workpiece contour.
Between two NC blocks with different radius
compensations RR and RL you must program at least
one traversing block in the working plane without radius
compensation (that is, with R0).
The control does not put radius compensation into
effect until the end of the NCblock in which it is first
programmed.
When radius compensation is activated with RR/RL, and
in the case of cancellation with R0, the control always
positions the tool perpendicularly to the programmed
start or end point. Position the tool before the first
contour point or after the last contour point such that the
contour does not incur damage.
Input of radius compensation within path contours
Radius compensation is entered in an L block. Enter the coordinates
of the target point and confirm your entry with the ENT key.
Radius comp.: RL/RR/no comp.?
Select tool movement to the left of the contour:
Press the RL soft key, or
Select tool movement to the right of the contour:
Press the RR soft key, or
Select tool movement without radius
compensation or cancel radius compensation:
Press the ENT key
Terminate the NC block: Press the END key
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HEIDENHAIN | TNC620 | Klartext Programming User's Manual | 01/2022
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