HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 379)

HEIDENHAIN iTNC 530 379
15.7
D
A
TUM
FR
OM
OUTSIDE
OF
CIR
C
LE
(Cy
cle
413,
DIN/ISO:
G413)
Please note while programming:
Cycle parameters
 Center in 1st axis
Q321 (absolute): Center of the
stud in the reference axis of the working plane. Input
range -99999.9999 to 99999.9999
 Center in 2nd axis Q322 (absolute): Center of the
stud in the minor axis of the working plane. If you
program Q322 = 0, the TNC aligns the hole center to
the positive Y axis. If you program Q322 not equal to
0, then the TNC aligns the hole center to the nominal
position. Input range -99999.9999 to 99999.9999
 Nominal diameter Q262: Approximate diameter of the
stud. Enter a value that is more likely to be too large
than too small. Input range 0 to 99999.9999
 Starting angle
Q325 (absolute): Angle between the
reference axis of the working plane and the first touch
point. Input range -360.0000 to 360.0000
 Stepping angle
Q247 (incremental): Angle between
two measuring points. The algebraic sign of the
stepping angle determines the direction of rotation
(negative = clockwise) in which the touch probe
moves to the next measuring point. If you wish to
probe a circular arc instead of a complete circle, then
program the stepping angle to be less than 90°. Input
range -120.0000 to 120.0000
Danger of collision!
To prevent a collision between touch probe and
workpiece, enter a high estimate for the nominal diameter
of the stud.
Before a cycle definition you must have programmed a
tool call to define the touch probe axis.
The smaller the angle increment Q247, the less
accurately the TNC can calculate the datum. Minimum
input value: 5°.
X
Y
Q322
Q321
Q262
Q325
Q247