HEIDENHAIN TNC 310 (286 140) - Manual (Page 104)

7 Programming: Miscellaneous functions 92
7
.5 Miscellaneous F
unction f
o
r
Rotary A
x
e
s
7.5 Miscellaneous Function for Rotary
Axes
Reducing display of a rotary axis to a value less than
360°: M94
Standard behavior
The TNC moves the tool from the current angular value to the
programmed angular value.
Example:
Current angular value:
538°
Programmed angular value: 180°
Actual path of traverse: –358°
Behavior with M94
At the start of block, the TNC first reduces the current angular value
to a value less than 360° and then moves the tool to the
programmed value. If several rotary axes are active, M94 will
reduce the display of all rotary axes.
Example NC blocks
To reduce display of all active rotary axes:
L M94
To reduce display of all active rotary axes and then move the tool in
the C axis to the programmed value:
L C+180 FMAX M94
Effect
M94 is effective only in the block in which M94 is programmed.
M94 becomes effective at the start of block.