Red Seal Electrician Practice
Motor controlsQuestion 190 of 1506

Two VFDs are made by the same manufacturer. Can an electrician assume they use the same programming steps?

  1. Yes, all drives of one maker are identical
  2. Yes, if they have the same horsepower
  3. No, but the manual is not needed
  4. No, they may differ; read the manual
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Correct answer: No, they may differ; read the manual

Even drives from one maker may have very different programming steps, so the manual for that drive must be read.

Source: Troubleshooting Motors and Controls (Dickson-Self), 8.1: Motor Drives

Practice motor controls

Questions last reviewed: 18 October 2026