HEIDENHAIN TNC 620 (34056x-04) Cycle programming User Manual
Page 347

DATUM AT CENTER OF 4 HOLES (Cycle 418, DIN/ISO: G418,
software option 17)
15.12
15
TNC 620 | User's Manual Cycle Programming | 5/2013
347
3rd center in 2nd axis Q317 (absolute): center of
the 3rd hole in the minor axis of the working plane.
Input range -99999.9999 to 99999.9999
4th center in 1st axis Q318 (absolute): center of
the 4th hole in the reference axis of the working
plane. Input range -99999.9999 to 99999.9999
4th center in 2nd axis Q319 (absolute): center of
the 4th hole in the minor axis of the working plane.
Input range -99999.9999 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
Clearance height Q260 (absolute): Coordinate in
the touch probe axis at which no collision between
touch probe and workpiece (fixtures) can occur.
Input range -99999.9999 to 99999.9999
Datum number in table Q305: Enter the number
in the datum or preset table in which the TNC is
to save the coordinates of the line intersection. If
you enter Q305=0, the TNC automatically sets the
display so that the new datum is at the intersection
of the connecting lines. Input range 0 to 2999
New datum for reference axis Q331 (absolute):
Coordinate in the reference axis at which the
TNC should set the calculated intersection of the
connecting lines. Default setting = 0 input range
-99999.9999 to 99999.9999
New datum for minor axis Q332 (absolute):
Coordinate in the minor axis at which the TNC
should set the calculated intersection of the
connecting lines. Default setting = 0 input range
-99999.9999 to 99999.9999
Measured-value transfer (0, 1) Q303: Specify
whether the determined datum is to be saved in the
datum table or in the preset table:
-1
: Do not use! Is entered by the TNC when old
programs are read in (See "Characteristics common
to all touch probe cycles for datum setting")
0
: Write determined datum in the active datum
table. The reference system is the active workpiece
coordinate system
1
: Write the measured datum into the preset table.
The reference system is the machine coordinate
system (REF system).
Probe in TS axis Q381: Specify whether the TNC
should also set the datum in the touch probe axis:
0
: Do not set the datum in the touch probe axis
1
: Set the datum in the touch probe axis
NC blocks
5 TCH PROBE 418 DATUM FROM 4
HOLES
Q268=+20
;1ST CENTER 1ST AXIS
Q269=+25
;1ST CENTER 2ND AXIS
Q270=+150
;2ND CENTER 1ST AXIS
Q271=+25
;2ND CENTER 2ND AXIS
Q316=+150
;3RD CENTER 1ST AXIS
Q317=+85
;3RD CENTER 2ND AXIS
Q318=+22
;4TH CENTER 1ST AXIS
Q319=+80
;4TH CENTER 2ND AXIS
Q261=-5
;MEASURING HEIGHT
Q260=+10
;CLEARANCE HEIGHT
Q305=12
;NO. IN TABLE
Q331=+0
;DATUM
Q332=+0
;DATUM
Q303=+1
;MEAS. VALUE
TRANSFER
Q381=1
;PROBE IN TS AXIS
Q382=+85
;1ST CO. FOR TS AXIS
Q383=+50
;2ND CO. FOR TS AXIS
Q384=+0
;3RD CO. FOR TS AXIS
Q333=+0
;DATUM