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27

No Limit Switches / Limit Switch Error

SEW Eurodrive · MOVIDRIVE compact System (MCF/MCV/MCS4_A)

¿Qué significa 27 ?

Emergency stop because both hardware limit switches are either missing/open circuit, or they are incorrectly wired in relation to the motor's direction of rotation. This prevents the drive from accurately detecting its travel limits.

Causas comunes

  • Limit switch not detected by the system.
  • Limit switch wiring is open or shorted.
  • Limit switch is physically obstructed and not actuating.
  • Configuration error: limit switch inputs not assigned.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check the wiring of both limit switches for proper connection and continuity.

  2. 2

    Swap the limit switch connections if they are found to be inverted relative to the motor's direction of rotation.

  3. 3

    Reprogram the terminal assignments and logic for the limit switches if the configuration is incorrect.

Ver todos los códigos en este manual (78)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: SEW Eurodrive MOVIDRIVE compact System (MCF/MCV/MCS4_A)