Rotary Axes (R2)
19.3 Programming rotary axes
Turning, Milling, Nibbling
336 Function Manual, 11/2012, 6FC5397-1CP10-5BA0
MD30320 DISPLAY_IS_MODULO = 0:
Absolute-position display would, in the case of a positive direction of rotation, for example,
result in +360° being displayed after one revolution, +720° after two revolutions, etc., in
contrast to the modulo 360° display. In this case, the display range is limited by the control in
accordance with the linear axes.
19.3 Programming rotary axes
Note
For general information about programming, please see:
Reference:
/BP_/ Operation and Programming
19.3.1 Rotary axis with active modulo conversion
Absolute programming (AC, ACP, ACN, G90)
Example with ACP: C=ACP(5.33) , general: axis name =ACP(value)
● The value identifies the target position of the rotary axis in a range from 0 to 359.999°.
Alarm 16830, "Incorrect modulo position programmed", is output for values with a
negative sign or ≥ 360°.
● ACP (positive) and ACN (negative) define the traversing direction of the rotary axis
unambiguously (irrespective of actual position).
● When programming with AC or with G90, the traversing direction depends on the actual
position of the rotary axis. If the target position is greater than the actual position, the axis
traverses in the positive direction, otherwise it traverses in the negative direction.
● Use of ACP and ACN: With asymmetrical workpieces, it must be possible to define the
traversing direction in order to prevent collisions during rotation.
Absolute programming along the shortest path (DC)
Example with DC: C=DC(25.3), general: axis name =DC(value)
● The value identifies the target position of the rotary axis in a range from 0 to 359.999
degrees. Alarm 16830, "Incorrect modulo position programmed", is output for values with
a negative sign or ≥ 360°.
● With DC (Direct Control), the rotary axis approaches the programmed absolute position
within one revolution along the shortest path (traversing movement max. ± 180°).
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