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Question about Lookahead


maartenvervelde
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PMAC performs its lookahead limiting by selectively lengthening the times of motion segments produced by the coarse interpolation function in "segmentation mode".

 

This is only active for linear, circle, and PVT mode moves commanded from PMAC motion programs. If you are computing your own trajectories in a custom servo algorithm, you have bypassed the key stages necessary to use lookahead.

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