Mitsubishi Electric Q Series Programming Manual page 245

6 MOTION PROGRAMS FOR POSITIONING CONTROL
REMARK
(1) The end point and circular arc central coordinates cannot be omitted.
Always specify them for two axes.
(2) Circular interpolation includes the [degree] axis whose stroke limit is set to be
invalid cannot be executed.
(3) Circular interpolation cannot be executed the combination of [mm] and [degree]
or [inch] and [degree].
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