Please Note While Programming - HEIDENHAIN TNC 620 User Manual

10
FACE MILLING (Cycle 233, DIN/ISO: G233, software option 19) 10.5

Please note while programming:

Pre-position the tool in the machining plane to the
starting position with radius compensation R0. Keep
in mind the machining direction.
The TNC automatically pre-positions the tool in the
tool axis. Note the 2nd set-up clearance Q204.
Enter the 2nd set-up clearance in Q204 so that no
collision with the workpiece or the fixtures can occur.
If the starting point in the 3rd axis Q227 and the
end point in the 3rd axis Q386 are entered as equal
values, the TNC does not run the cycle (depth = 0
has been programmed).
Danger of collision!
Use the machine parameter displayDepthErr to
define whether, if a positive depth is entered, the
TNC should output an error message (on) or not (off).
Keep in mind that the TNC reverses the calculation
for pre-positioning if starting point < end point is
entered. This means that the tool moves at rapid
traverse in the tool axis to set-up clearance below
the workpiece surface!
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TNC 620 | User's Manual Cycle Programming | 3/2014