HEIDENHAIN TNC 320 (340 55x-03) - Manual (Page 45)

HEIDENHAIN TNC 320 45
2.1 S
w
itc
h
-On, S
w
itc
h
-Of
f
The TNC is now ready for operation in the Manual Operation mode.
Crossing the reference point in a tilted working plane
The TNC automatically activates the tilted working plane if this
function was enabled when the control was switched off. Then the
TNC moves the axes in the tilted coordinate system when an axis-
direction key is pressed. Position the tool in such a way that a collision
is excluded during the subsequent crossing of the reference points. To
cross the reference points you have to deactivate the "Tilt Working
Plane" function, See “Activating manual tilting,” page 63.
The reference points need only be crossed if the machine
axes are to be moved. If you intend only to write, edit or
test programs, you can select the Programming or Test
Run modes of operation immediately after switching on
the control voltage.
You can cross the reference points later by pressing the
PASS OVER REFERENCE soft key in the Manual
Operation mode.
Make sure that the angle values entered in the menu for
tilting the working plane match the actual angles of the
tilted axis.
Deactivate the "Tilt Working Plane" function before you
cross the reference points. Take care that there is no
collision. Retract the tool from the current position first, if
necessary.
If you use this function, then for non-absolute encoders
you must confirm the positions of the rotary axes, which
the TNC displays in a pop-up window. The position
displayed is the last active position of the rotary axes
before switch-off.