Red Seal Electrician Practice
Motor controlsQuestion 1235 of 1506

How should the step rate be handled when a stepper is started with a load?

  1. Ramp up the rate from well below the start limit.
  2. Start at the maximum start frequency at once, with the load on.
  3. Start at the highest speed shown on the speed-torque curve.
  4. Hold the step rate fixed and raise the supply voltage instead.
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Correct answer: Ramp up the rate from well below the start limit.

A load makes the maximum start frequency unreachable, so the rate is raised slowly.

Source: Lessons in Electric Circuits II: AC (Kuphaldt), 13.5: Stepper Motors

Practice motor controls

Questions last reviewed: 18 October 2026