HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 606)

Tables and overviews
19.5 Functions of the TNC 640 and the iTNC 530 compared
19
606
TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
Function TNC 640 iTNC 530
Circle programming with polar
coordinates
The incremental rotation angle
IPA and the direction of rotation
DR must have the same sign.
Otherwise, an error message will
be issued
The algebraic sign of the direction
of rotation is used if the sign
defined for
DR differs from the
one defined for IPA
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
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
Traverse movement in spacial arc Error message is issued No restrictions
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