What term refers to the maximum number of steps the motor makes in one second?

• A. Stepping rate
• B. Step frequency
• C. Step speed
• D. Step interval

Answer: (A)

The concept being tested is how we quantify how fast a stepping motor can move in terms of steps per second. The term that best fits this is stepping rate, because it directly describes the maximum number of steps the motor can take in one second. This rate is determined by how quickly the driver can energize the motor coils and how the motor’s electrical and mechanical limits allow stepping to occur.

While step frequency and stepping rate are related ideas, stepping rate is the clearest way to express speed in terms of steps per second. Step interval refers to the time between steps, which is essentially the inverse of the stepping rate. Step speed tends to imply rotor motion speed (often in rpm) rather than a pure step-per-second measure.