HEIDENHAIN TNC 620 (73498x-01) ISO programming - Manual (Page 486)

486
Tool radius compensation on circular arc
or helix with angular length = 0 The transition between the adjacent
elements of the arc/helix is generated.
Also, the tool axis motion is executed
right before this transition. If the
element is the first or last element to be
corrected, the next or previous element
is dealt with in the same way as the first
or last element to be corrected The equidistant line of the arc/helix is
used for generating the tool path
Checking the algebraic sign of the depth
parameter in fixed cycles Must be deactivated if Cycle 209 is used No restrictions
Tool change while tool radius
compensation is active Program cancelation with error message Tool radius compensation is canceled,
tool change is performed
Compensation of tool length in the
position display The values L and DL from the tool table
and the value DL from the TOOL CALL are
taken into account in the position display The values L and DL from the tool table
are taken into account in the position
display
SLII Cycles 20 to 24:
„ Number of definable contour
elements „ Max. 16384 blocks in up to 12
subcontours „ Max. 8192 contour elements in up to
12 subcontours, no restrictions for
subcontour
„ Define the working plane „ Tool axis in TOOL CALL block defines
the working plane „ The axes of the first positioning block
in the first subcontour define the
working plane
„ Position at end of SL cycle „ End position = clearance height above
the last position that is defined before
the cycle call „ With MP7420, you can define
whether the end position is above the
last programmed position, or whether
the tool moves only to clearance
height
„ 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
„ M110 (feed-rate reduction for inside
corner) „ Function does not work within SL
cycles „ Function also works within SL cycles
Function TNC 620 iTNC 530