Miscellaneous functions for rotary axes 12.4
12
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
461
Shortest-path traverse of rotary axes: M126
Standard behavior
The behavior of the TNC when positioning the rotary
axes depends on the machine tool. Refer to your
machine manual.
The standard behavior of the TNC while positioning rotary axes
whose display has been reduced to values less than 360° is
dependent on machine parameter
shortestDistance
(no. 300401).
This machine parameter defines whether the TNC should consider
the difference between nominal and actual position, or whether it
should always (even without M126) choose the shortest path to the
programmed position. Examples:
Actual position
Nominal position
Traverse
350°
10°
–340°
10°
340°
+330°
Behavior with M126
With M126, the TNC will move the axis on the shorter path of
traverse for rotary axes whose display is reduced to values less
than 360°. Examples:
Actual position
Nominal position
Traverse
350°
10°
+20°
10°
340°
–30°
Effect
M126 becomes effective at the start of block.
To cancel M126, enter M127. At the end of program, M126 is
automatically canceled.
Summary of Contents for TNC 620 Programming Station
Page 4: ......
Page 5: ...Fundamentals ...
Page 28: ...Contents 28 HEIDENHAIN TNC 620 ISO Programming User s Manual 9 2016 ...
Page 57: ...1 First Steps with the TNC 620 ...
Page 77: ...2 Introduction ...
Page 110: ......
Page 111: ...3 Fundamentals file management ...
Page 166: ......
Page 167: ...4 Programming aids ...
Page 194: ......
Page 195: ...5 Tools ...
Page 234: ......
Page 235: ...6 Programming contours ...
Page 284: ......
Page 285: ...7 Data transfer from CAD files ...
Page 304: ......
Page 305: ...8 Subprograms and program section repeats ...
Page 323: ...9 Programming Q parameters ...
Page 384: ......
Page 385: ...10 Miscellaneous functions ...
Page 407: ...11 Special functions ...
Page 433: ...12 Multiple axis machining ...
Page 475: ...13 Pallet management ...
Page 480: ......
Page 481: ...14 Manual Operation and Setup ...
Page 549: ...15 Positioning with Manual Data Input ...
Page 554: ......
Page 555: ...16 Test Run and Program Run ...
Page 590: ......
Page 591: ...17 MOD Functions ...
Page 622: ......
Page 623: ...18 Tables and Overviews ...