HEIDENHAIN TNC 620 User Manual page 54

1
First Steps with the TNC 620
1.3 Programming the first part
Select the approach function APPR CT: Enter the
coordinate of the contour starting point
Y, e.g. 5/5. Confirm with the ENT key
Center angle? Enter the approach angle, e.g. 90°,
and confirm with the ENT key
Circle radius? Enter the approach radius, e.g. 8
mm, and confirm with the ENT key
Radius comp.: Confirm RL/RR/no comp.? with
the ENT key: Activate radius compensation to the
left of the programmed contour
Feed rate F=? Enter the machining feed rate, e.g.
700 mm/min, and confirm your entry with the END
key
Machine the contour and move to the contour
point 2: You only need to enter the information
that changes. In other words, enter only the Y
coordinate 95 and save your entry with the END
key
Approach contour point 3: Enter the X coordinate
95 and save your entry with the END key
Define the chamfer at the contour point 3: Enter
the chamfer width 10 mm and confirm with the
END key
Approach contour point 4: Enter the Y coordinate 5
and save your entry with the END key
Define the chamfer at the contour point 4: Enter
the chamfer width 20 mm and confirm with the
END key
Approach contour point 1: Enter the X coordinate 5
and save your entry with the END key
Depart the contour
Select the departure function DEP CT
Center angle? Enter the departure angle, e.g. 90°,
and confirm with the ENT key
Circle radius? Enter the departure radius, e.g. 8
mm, and confirm with the ENT key
Feed rate F=? Enter the positioning feed rate, e.g.
3000 mm/min and confirm with the ENT key
Miscellaneous function M? Switch off the coolant,
e.g. M9, and confirm with the END key: The TNC
stores the entered positioning block
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HEIDENHAIN Conversational Programming | 3/2014
TNC 620 | User's Manual