HEIDENHAIN TNC 640, User Manual, Page: 76 / 948

First Steps with the TNC 640 | Programming the first part
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HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
Press the approach function soft key
APPR CT
:
Enter the coordinates of the contour starting
point
1 in X and Y, e.g. 5/5, confirm with the
ENT
key
Center angle?
Enter the approach angle, e.g.
90°, confirm with the
ENT
key
Circle radius?
Enter the circular radius, e.g.
8 mm, confirm with the
ENT
key
Confirm
Tool radius comp: RL/RR/no comp?
with the
RL
soft key: Activate the radius
compensation to the left of the programmed
contour
Feed rate F=?
Enter the machining feed rate,
e.g. 700 mm/min, save your entry with the
END
key
Machine the contour and move to contour point
2 : You only need to enter the information that
changes. In other words, enter the Y coordinate
95 and save your entry with the
END
key
Move to contour point 3 : Enter the X coordinate
95 and save your entry with the
END
key
Define the chamfer at contour point 3 : Enter the
chamfer width 10 mm and save with the
END
key
Move to contour point 4 : Enter the Y coordinate
5 and save your entry with the
END
key
Define the chamfer at contour point 4 : Enter the
chamfer width 20 mm and save with the
END
key
Move to contour point 1 : Enter the X coordinate
5 and save your entry with the
END
key
Depart contour: Press the APPR DEP key
Departure function: Press the
DEP CT
soft key
Center angle?
Enter the departure angle, e.g.
90°, confirm with the
ENT
key
Circle radius?
Enter the departure radius, e.g.
8 mm, confirm with the
ENT
key
Feed rate F=?
Enter the positioning feed rate,
e.g. 3000 mm/min, confirm with the
ENT
key
Miscellaneous function M?
Switch off the
coolant, e.g.
M9
, and confirm with the
END
key
The control stores the entered positioning block.