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17

Motor underload

Vacon · NX All-in-One Application

¿Qué significa 17 ?

The motor underload protection has tripped, indicating that the motor's current draw is significantly lower than expected given its operating conditions and commanded speed. This typically suggests a loss of mechanical load, a broken coupling, or an issue with the driven equipment. Running under severe underload can sometimes lead to inefficient operation or potential runaway conditions in certain applications.

Causas comunes

  • Motor is drawing significantly less current than expected for the operating conditions.
  • Mechanical load is too light or absent.
  • Incorrect motor parameters leading to under-estimation of required torque.
  • Encoder feedback suggesting no load when one exists.
  • Minimum torque setting too low.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Inspect the mechanical load connected to the motor — confirm it is present and properly engaged with the motor shaft.

  2. 2

    Check for any broken belts, damaged couplings, or other mechanical failures that would cause the motor to lose its intended load.

  3. 3

    Verify the motor's current draw against the expected current for the application and the drive's underload threshold settings.

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Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Vacon NX All-in-One Application