HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 396)

396 Touch probe cycles: automatic datum setting
15.1
1
D
A
TUM
IN
TO
UCH
PR
OBE
AXIS
(Cy
cle
41
7,
DIN/ISO:
G41
7) Cycle parameters
 1st meas. point 1st axis
Q263 (absolute):
Coordinate of the first touch point in the reference
axis of the working plane. Input range -99999.9999 to
99999.9999
 1st meas. point 2nd axis Q264 (absolute):
Coordinate of the first touch point in the minor axis of
the working plane. Input range -99999.9999 to
99999.9999
 1st meas. point 3rd axis
Q294 (absolute):
Coordinate of the first touch point in the touch probe
axis. Input range -99999.9999 to 99999.9999
 Set-up clearance
Q320 (incremental): Additional
distance between measuring point and ball tip. Q320
is added to MP6140. Input range 0 to 99999.9999,
alternatively PREDEF
 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, alternatively PREDEF
 Datum number in table Q305: Enter the number in the
datum or preset table in which the TNC is to save the
coordinate. If you enter Q305=0, the TNC
automatically sets the display so that the new datum
is on the probed surface. Input range 0 to 2999
 New datum in TS axis
Q333 (absolute): Coordinate in
the touch probe axis at which the TNC should set the
datum. 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 "Saving the calculated
datum" on page 358).
0 : Write determined datum in the active datum table.
The reference system is the active workpiece
coordinate system.
1 : Write determined datum in the preset table. The
reference system is the machine coordinate system
(REF system).
Example: NC blocks
5 TCH PROBE 417 DATUM IN TS AXIS
Q263=+25 ;1ST POINT 1ST AXIS
Q264=+25 ;1ST POINT 2ND AXIS
Q294=+25 ;1ST POINT 3RD AXIS
Q320=0 ;SET-UP CLEARANCE
Q260=+50 ;CLEARANCE HEIGHT
Q305=0 ;NO. IN TABLE
Q333=+0 ;DATUM
Q303=+1 ;MEAS. VALUE TRANSFER
X
Y
Q264
Q263
1
X
Z
Q260
Q294
MP61
40
+
Q320
1