HEIDENHAIN TNC 320 (34055x-06) Cycle programming - Manual (Page 293)

DATUM FROM INSIDE OF RECTANGLE (Cycle 410, DIN/ISO: G410) 15.4
15
TNC 320 | User's Manual Cycle Programming | 5/2013
293
Please note while programming:
Danger of collision!
To prevent a collision between touch probe and
workpiece, enter
low estimates for the lengths of
the first and second sides.
If the dimensions of the pocket and the safety
clearance do not permit pre-positioning in the
proximity of the touch points, the TNC always starts
probing from the center of the pocket. In this case
the touch probe does not return to the clearance
height between the four measuring points.
Before a cycle definition you must have programmed
a tool call to define the touch probe axis.
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.
Cycle parameters
Center in 1st axis Q321 (absolute): Center of the
pocket in the reference axis of the working plane.
Input range -99999.9999 to 99999.9999
Center in 2nd axis Q322 (absolute): Center of the
pocket in the minor axis of the working plane. Input
range -99999.9999 to 99999.9999
1st side length Q323 (incremental): Pocket length,
parallel to the reference axis of the working plane.
Input range 0 to 99999.9999
2nd side length Q324 (incremental): Pocket length,
parallel to the minor axis of the working plane. Input
range 0 to 99999.9999
Measuring height in the touch probe axis Q261
(absolute): Coordinate of the ball tip center (=
touch point) in the touch probe axis in which
the measurement is to be made. Input range
-99999.9999 to 99999.9999