HEIDENHAIN TNC 620 (340 56x-02) - Manual (Page 505)

HEIDENHAIN TNC 620 505
Compar
ison: F
unctions of the TNC 620 and the iTNC
530
5-axis movements before contour
elements that are defined with a
tangent at the starting point (e.g. CT) Error message is issued Only the X, Y and Z coordinates of the
5-axis movement are considered in the
tangent calculation, and not the rotary
axis movements. This may result in the
contour element's tangential
connection in the editing graphics, but
not in the actual machining operation
5-axis movements before
approach/departure movements Error message is issued Only the X, Y and Z coordinates of the
5-axis movement are considered in the
approach/departure calculation, and not
the rotary axis movements. This may
result in the approach/departure
movements' tangential connection in
the editing graphics, but not in the
actual machining operation
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 cancellation with error
message Tool radius compensation is canceled,
tool change is performed
Function TNC 620 iTNC 530