HEIDENHAIN TNC 620 (81760x-01) Cycle programming - Manual (Page 353)

DATUM FROM INSIDE OF CORNER (Cycle 415, DIN/ISO: G415,
software option 17)
15.9
15
TNC 620 | User's Manual Cycle Programming | 3/2014
353
Please note while programming:
Danger of collision!
If you set a datum (Q303 = 0) with the touch probe
cycle and also use probe in TS axis (Q381 = 1), then
no coordinate transformation must be active.
Before a cycle definition you must have programmed
a tool call to define the touch probe axis.
The TNC always measures the first line in the
direction of the minor axis of the working plane.