HEIDENHAIN TNC 306 Technical Manual User Manual
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3/2000
TNC 416/TNC 406/TNC 306
1-3
• Handwheel
Besides in the MANUAL and JOG INCREMENT modes, the handwheel is also effective with:
Manual Touch Probe: depth finding, but not in the probe axis;
Manual erosion, but not in the erosion axis;
After an EXT stop and when a PGM is being run (for workpiece inspection).
• Tool Def or Cycle 3 Tool Def blocks can now be included in the OEM cycle in the PLC-EPROM.
• Read machine parameter 7651 was removed. MP7651 made it possible to switch off the
special short-circuit monitoring in manual mode. The monitor is now always active during
traverse with the handwheel and axis direction keys .
The short circuit monitor can now also be switched on or off with the aid of marker M2622 in
manual and handwheel mode.
• Machine parameter MP7412 (behavior during cycle call) has been removed.
• Change in machine parameter MP4060.x
The input in MP4060.x (distance for lubrication pulse) is in millimeters.
• Marker M2500 (actual-to-nominal value transfer in case of short circuit) and the complement
markers as of M2464 and as of M2528 have been removed.
• New marker M2507
The status display M7 can be switched on with marker M2507. This same applies for status
display M8 (M2508). M7 can be used to display a second flushing.
• New PLC word W498
W498 is the encoded current handwheel axis (X=bit 0, Y=bit 1, Z=bit 2, ...)