Mitsubishi Electric MELFA FR CR800 Series User Manual page 584

Caution
The program execution line in the output information at interference
sometimes shifts from the line that was actually executing. Use this as a
rough guide that interference occurred somewhere neat that line.
By this function, only combinations of interfering parts that include objects that have not interfered even once
since the interference check is started are checked. For this reason, with objects that have interfered even once,
even in a combination that has never interfered with another object, when both objects have interfered with
another object, that combination is not checked. To check those combinations, reset the interference history by
clicking the [3D view] tab -> [Interference check] group -> [Reset] button on the ribbon.
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Figure 21-115 Resetting the Interference History
Combination where
interference of both
objects has occurred
and interference check
is not performed
Click [Reset]
button
Combination where
interference of both
objects has never
occurred and
interference check is
performed
21-584