Servo Motor Sizing: Inertia Matching, RMS Torque and Gearbox Selection
The Servo That Overshot Every Time We put a 400 W servo on a rotary indexer. It had plenty of torque on paper — the catalog said it would handle the inertia. On the floor, it overshot the target position by 3 degrees every cycle, oscillated twice, and settled in 800 ms. The cycle time …
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