“Tilt Working Plane” Feature - HEIDENHAIN iTNC 530 HSCI Technical Manual

6.5.6 "Tilt working plane" feature
Assignment of
input values
(Cycle 19)
Automatic
positioning
July 2013
The user defines the position of the working plane in Cycle 19 "Tilted Working
Plane." Then the iTNC performs a coordinate transformation.
With the 3D ROT soft key you can activate the tilted working plane separately
for the MANUAL and PROGRAM RUN operating modes.
If bit 2 is set in MP7507, the 3D ROT soft key will be available in the Test Run
mode after you have pressed the MOD key. Here you can enter (in the same
manner as in the Manual Operation mode) the tilt angles in the axes A, B and
C, and you can activate/deactivate tilting for the test run. Additionally, a soft
key is available to load the status of the machine (active kinematics, tilt angles
+ active in program run). If bit 2 is set in MP7507, tilting is not deactivated
anymore when a new program is selected in Test Run mode. The axis that is
set for manual probing will be used as the tool axis until the first tool call. This
can cause the error message "Angle cannot be calculated" if the tool axis and
the selected kinematics model cannot be used together.
With MP7500 you can define the function of the tilted working plane cycle.
With FN18: SYSREAD ID290 NR2 you can request the values of the individual
bits from MP7500.
With MP7500 bit 1 you define whether the input applies to the position of the
tilted axes (bit 1 = 0) or the position of the working plane (bit 1 = 1).
If the input value applies to the position of the working plane, the iTNC
calculates the position of the tilting axes and saves the coordinates in
Q parameters:
Q120: Coordinate of the A axis

Q121: Coordinate of the B axis

Q122: Coordinate of the C axis

With FN17:SYSWRITE ID990 NR5 IDX5 you can determine if a principal axis is
shown on top of another principal axis in an untilted coordinate system due to
a tilt motion.
After the coordinate transformation, the Z axis remains parallel to the
tool axis, perpendicular to the X/Y plane. With MP7500 bit 2 you define
whether the "tilted working plane" function automatically positions the tilting
axes (bit 2 = 1). In this case the user can enter the feed rate and setup
clearance in the cycle.
The iTNC then moves automatically to the setup clearance and interpolates
the swivel and principle axes so that the tool point remains in the same
position in the tilted coordinate system.
With MP7682 bit 9 you control whether the status of the Tilt working plane
function in an NC program is applied to the Manual operating mode during a
program interruption.
6.5 Tilting and swivel axes
761