Please Note While Programming - HEIDENHAIN TNC 620 User Manual

15
Touch Probe Cycles: Automatic Datum Setting
15.8 DATUM FROM OUTSIDE OF CORNER (Cycle 414, DIN/ISO: G414,
software option 17)

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.
By defining the positions of the measuring points
1
and
TNC sets the datum (see figure at right and table
below).
Corner X coordinate
1
A Point greater than
3
point
1
B Point less than point
1
C Point less than point
1
D Point greater than
3
point
348
3
you also determine the corner at which the
Y coordinate
1
Point
3 1
Point
3 1
Point
3
1
Point
3
3
less than point
3
less than point
greater than point
greater than point
TNC 620 | User's Manual Cycle Programming | 3/2014