HEIDENHAIN ITNC 530 User Manual page 282

Conversational programming
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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:
Programmed angular value:
Actual distance of traverse:
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. As an alternative you can enter a rotary axis after M94.
The TNC then reduces the display only of this axis.
Example NC blocks
To reduce display of all active rotary axes:
L M94
To reduce display of the C axis only:
L M94 C
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 it is programmed.
M94 becomes effective at the start of block.
282
538°
180°
–358°
7 Programming: Miscellaneous Functions

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