HEIDENHAIN TNC 620 (340 56x-03) - Manual (Page 534)

534
SLII Cycles 20 to 24:
„ Handling of coordinates and axis
values outside the working plane „ Error message is issued „ Axes that are outside the working
plane in the contour description are
ignored
„ Handling of islands which are not
contained in pockets „ Cannot be defined with complex
contour formula „ Restricted definition in complex
contour formula is possible
„ Set operations for SL cycles with
complex contour formulas „ Real set operation possible „ Only restricted performance of real
set operation possible
„ Radius compensation is active during
CYCL CALL „ Error message is issued „ Radius compensation is canceled,
program is executed
„ Paraxial positioning blocks in contour
subprogram „ Error message is issued „ Program is executed
„ Miscellaneous functions M in contour
subprogram „ Error message is issued „ M functions are ignored
„ Infeed movements in contour
subprogram „ Error message is issued „ Infeed movements are ignored
„ M110 (feed-rate reduction for inside
corner) „ Function does not work within SL
cycles „ Function also works within SL cycles
SLII Contour Train Cycle 25: APPR/DEP
blocks in contour definition Not allowed, machining of closed
contours is more coherent APPR /DEP blocks are allowed as contour
elements
General cylinder surface machining:
„ Contour definition „ With X/Y coordinates, independent of
machine type „ Machine-dependent, with existing
rotary axes
„ Offset definition on cylinder surface „ With datum shift in X/Y, independent
of machine type „ Machine-dependent datum shift in
rotary axes
„ Offset definition for basic rotation „ Function available „ Function not available
„ Circle programming with C/CC „ Function available „ Function not available
„ APPR /DEP blocks in contour definition „ Function not available „ Function available
Cylinder surface machining with
Cycle 28:
„ Complete roughing-out of slot „ Function available „ Function not available
„ Definable tolerance „ Function available „ Function available
Cylinder surface machining with
Cycle 29 Direct plunging to contour of ridge Circular approach to contour of ridge
Cycles 25x for pockets, studs and slots In limit ranges (geometrical conditions of
tool/contour) error messages are
triggered if plunging movements lead to
unreasonable/critical behavior In limit ranges (geometrical conditions of
tool/contour), vertical plunging is used if
required
Function TNC 620 iTNC 530