Dimensioning motor for motion control

[L D[AR2P#0.0]]

While what you state is true, I don't believe that your answer is the historical philosophy behind maintaining the inertia match. It does correctly identify why, in the absence of other limits, 1:1 is the ideal limit.

I think the historical genesis of the 1:1 matching is pretty well explained in the two links provided.

Keith

Agreed - the 1:1 "ideal" is a textbook example which sticks in the mind and is repeated when people of little/no experience ask advice from others of little more experience.

 

[Honga]

It could also affect harmonics generating in the drive shaft, due to reflected waves and such.

Matching inertia could increase damping?

Agree/disagree?