Machine Datum - HEIDENHAIN TNC 415 Technical Manual

MP1350 Type of reference mark approach
Entry:
MP1350.0 X axis
MP1550.1 Y axis
MP1350.2 Z axis
MP1350.3 Axis 4
MP1350.4 Axis 5
Marker Function
M2136 Reference marks X axis not yet traversed
M2137 Reference marks Y axis not yet traversed
M2138 Reference marks Z axis not yet traversed
M2139 Reference marks axis 4 not yet traversed
M2140 Reference marks axis 5 not yet traversed
M2556 Reference end-position for X axis
M2557 Reference end-position for Y axis
M2558 Reference end-position for Z axis
M2559 Reference end-position for axis 4
M2506 Reference end-position for axis 5
Address Function
W272 Operating mode
1 = Manual operation
2 = Handwheel
3 = Positioning with manual entry
4 = Program run/single block
5 = Program run/full sequence
7 = Pass over reference points

2.2 Machine datum

The reference mark defines a point on the measuring system. The reference points of all axes define
the scale datum. MP960.x contains the distance from the scale datum to the machine datum. All
REF-based displays and positioning movements refer to the machine datum (see also Section
"Display and operation").
01.98 TNC 407/TNC 415/TNC 425
0 = measuring system with distance-coded reference marks
1 = measuring system with one reference mark
2 = special sequence (linear measurement via rotary encoder)
3 = measuring system with distance-coded reference marks
2 Reference marks
Set Reset
NC NC
PLC PLC
Set Reset
NC NC
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