HEIDENHAIN TNC 426 CB, Техническое руководство

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December 2001 Tilting Axes 6 – 79
With MP7682 bit 1 you define whether the nominal or the actual values are
used to calculate the presets during “datum setting” (is valid for MP7500 bit
3, bit 5, bit 7, bit 8).
No servo-controlled axes:
The user must enter the current positions of the tilting axes by using the 3-D
ROT soft key.
MP7500 bit 8 = 0
During “datum setting” for X, Y and
Z, the position of the tilting axes
depending on bit 3, bit 5 and bit 7 are
considered when “tilted working
plane” is
active (1).
The reference coordinates of the
linear axes are maintained when
“tilted working plane” is
inactive and
the tilting element is in its home
position (2).
MP7500 bit 8 = 1
During “datum setting” for X, Y and
Z, the datum is recalculated back to
the home position of the tilting
element when “tilted working plane”
is
active (1).
So when “tilted working plane” is
inactive and the tilting element is in
its home position, the tool is
positioned at the datum set while
“tilted working plane” was
active.
Bit 7 must equal 1.
X
Z
X
Z
(1)
(2)
X
Z
(1)
(2)
Note
In the combination of coordinate transformation cycles, note the sequence
of activation and deactivation.