HEIDENHAIN iTNC 530 (34049x-08) Cycle programming - Manual (Page 482)

482 Touch probe cycles: automatic kinematics measurement
18
.4
MEA
S
URE
KINEMA
TICS
(Cy
cle
451,
DIN/ISO:
G451;
Option)
Positioning direction
The positioning direction of the rotary axis to be measured is
determined from the start angle and the end angle that you define in
the cycle. A reference measurement is automatically performed at 0°.
The TNC will issue an error message if the selected start angle, end
angle and number of measuring points result in a measuring position
of 0°.
Specify the start and end angles to ensure that the same position is
not measured twice. As mentioned above, a duplicated point
measurement (e.g. measuring positions +90° and -270°) is not
advisable, however it does not cause an error message.
 Example: Start angle = +90°, end angle = –90°
 Start angle = +90°
 End angle = –90°
 No. of measuring points = 4
 Stepping angle resulting from the calculation = (-90 - +90) / (4-1) =
–60°
 Measuring point 1= +90°
 Measuring point 2= +30°
 Measuring point 3= –30°
 Measuring point 4= –90°
 Example: start angle = +90°, end angle = +270°
 Start angle = +90°
 End angle = +270°
 No. of measuring points = 4
 Stepping angle resulting from the calculation = (270 – 90) / (4 – 1)
= +60°
 Measuring point 1= +90°
 Measuring point 2= +150°
 Measuring point 3= +210°
 Measuring point 4= +270°