HEIDENHAIN iTNC 530 (340 49x-03) - Manual (Page 510)

510 8 Programming: Cycles
8.1
0
Special Cy
cles
Programming
Before programming, note the following:
Cycle 32 is DEF active which means that it becomes
effective as soon as it is defined in the part program.
The TNC resets Cycle 32 if you
„ Redefine it and confirm the dialog question for the
tolerance value
with NO ENT.
„
Select a new program with the PGM MGT key.
After you have reset Cycle 32, the TNC reactivates the
tolerance that was predefined by machine parameter.
In a program with millimeters set as unit of measure, the
TNC interprets the entered tolerance value in millimeters.
In an inch program it interprets them as inches.
If you transfer a program with Cycle 32 that contains only
the cycle parameter Tolerance value T, the TNC inserts
the two remaining parameters with the value 0 if required.
As the tolerance value increases, the diameter of circular
movements usually decreases. If the HSC filter is active
on your machine (ask your machine manufacturer, if
necessary), the circle can also become larger.