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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
Check the connection between the inverter and motor for integrity and correct phasing
- 2
Check startup data, including motor parameters, and perform a new startup procedure if necessary
- 3
Check the cross section of the motor cable and increase it if necessary to ensure adequate current delivery
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: SEW Eurodrive MOVITRAC 07B System