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F81

Start condition

SEW Eurodrive · MOVITRAC 07B System

¿Qué significa F81 ?

An immediate switch-off with inhibit occurs only in 'VFC hoist' operating mode. The motor could not be supplied with the correct amount of current during the pre-magnetizing time, possibly due to mismatched motor/inverter power or insufficient motor cable cross-section.

Causas comunes

  • Motor could not be supplied with correct current during pre-magnetizing time (VFC hoist mode)
  • Rated motor power too small in relation to rated inverter power
  • Motor cable cross section too small

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check the connection between the inverter and motor for integrity and correct phasing

  2. 2

    Check startup data, including motor parameters, and perform a new startup procedure if necessary

  3. 3

    Check the cross section of the motor cable and increase it if necessary to ensure adequate current delivery

Ver todos los códigos en este manual (41)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: SEW Eurodrive MOVITRAC 07B System