Servo tuning basics

Driving a servo motor is much like driving a car. Driving a car has many similarities including the key concepts of torque, velocity and position control. Most of this happens in the driver's head the same way than a servo drive does with a motor.

Driving (a.k.a servoing) a car

Driver as a controller

Low feedback gain, sluggish response

Too high feedback gain, oscillation & instability

Optimum feedback gain, only little overshoot

Optimum gain with realistic setpoint, optimum response

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