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Overcurrent

Vacon · NX Liquid-Cooled Drive

¿Qué significa 1 ?

The AC drive has detected an excessively high current, exceeding 4 times the nominal current (4*IH), in the motor cables. This condition typically results from a sudden heavy increase in mechanical load, a short circuit within the motor cables, or the use of an unsuitable motor for the application. Subcode S1 indicates a hardware trip, while S3 points to current controller supervision.

Causas comunes

  • Motor load exceeding rated capacity.
  • Mechanical binding or seizure in the driven equipment.
  • Incorrect motor or drive sizing for the application.
  • Short circuit in motor windings or power cables.
  • Parameter P1-02 (Max current) set too low.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check the mechanical loading on the motor shaft to ensure it is within expected limits.

  2. 2

    Inspect the motor for any signs of damage or malfunction, and verify its suitability for the connected load.

  3. 3

    Verify the integrity of the motor cables for any signs of insulation failure or short circuits between phases or to ground.

Ver todos los códigos en este manual (52)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Vacon 1 — Reparación: Overcurrent guía técnica | ErrorLib