HEIDENHAIN TNC 306 Technical Manual - Manual (Page 495)

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TNC406/TNC 306 1-7
Change in Cycle 17 DISK, MOD 2 Orbiting
Up to now, with the expansion mode MOD 2, during timing the TNC has retracted the electrode first
in the erosion axis and then in the direction of the center of orbital movement. Now the TNC retracts
the electrode as in MOD 3 in the direction of the starting point. The gap control during orbital sinking
is as before only in the erosion axis.
CYCL DEF 17.0 DISK
CYCL DEF 17.1 IZ-x.xxx M36
CYCL DEF 17.2 RAD=y.yyy MOD=0..7
MOD (0...7)
Bit 1 and bit 0:
00 = Circular expansion together with sinking (corresponds to PAT = 0 in Cycle 16)
01 = Quadratic expansion together with sinking (corresponds to PAT = 1 in Cycle 16)
10 = Orbital sinking with retraction to starting point (corresponds to PAT = 2 in Cycle 16)
11 = Same as 10
Bit 2:
0 = Terminate sparking out if final radius has been reached and the sparking-out duration (MP2110
or Cycle 4) has expired (fast sparking out, corresponds to SPO = 0 in Cycle 16)
1 = Terminate sparking out if final radius has been reached and there have been 1
1
/
4
revolutions
of continuous free running (M2616 complete sparking out, corresponds to SPO = 1 in Cycle 16)
Change in Cycle 19: WORKING PLANE: Tilting the working plane
The datum of the tilting motion is now identical with the manually set datum (as in the milling
machine controls TNC 426/TNC 430). The TNC shows the tilting angle in the graphic status after the
soft key STATUS TILT has been pressed. If there is a basic rotation, it is calculated into the tilt in the
basic axis of rotation. The TOUCH PROBE cycle is also possible in the tilted system (through a 3-D
straight line).
Probing with the electronic handwheel
If the short circuit monitor (MP 7651=0) is active, you can probe with the electronic handwheel. If
the electrode makes contact with the workpiece during probing with the electronic handwheel (short
circuit), then the TNC stops the positioning in the direction of the workpiece and permits traverse
only in the opposite direction. It is also impossible to switch axes. The TNC permits normal operation
again if the electrode is retracted by at least 100 µm. The short circuit monitoring during handwheel
positioning for a reference run is not active in this form.
Coping files
Now you can copy files in the PROGRAMMING AND EDITING mode of operation.
MP7300 has been expanded and is now bit-coded:
MP 7300 was expanded from 1 bit to 3:
Bit 0:
1= Delete program data and display status with PGM END or M02, which means that PGM END
or M02 function like a program selection or the reset soft key (function unchanged).
new:
Bit 1:
1 = Do not delete Q parameters when program is selected or reset soft key is pressed
Bit 2:
1 = Do not delete tool data and Q parameters when program is selected or reset soft key is
pressed.
The Q parameters are always deleted after power interruption, and the tool data are always retained.