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F71
Net Loss
Allen-Bradley · PowerFlex 4 Adjustable Frequency
¿Qué significa F71 ?
This fault occurs when communication is lost with the network connected to the drive. This means the drive is no longer receiving commands or transmitting data via its communication interface.
Causas comunes
- Loss of communication with the main control network (e.g., Ethernet/IP, Profibus).
- Faulty network cable or connector.
- Network switch or router malfunction.
- Incorrect network configuration (IP address, station address).
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Verify the physical network cable connection to the drive's communication port (e.g., RS485/DSI terminals 8 and 1).
- 2
Check the operational status of other devices on the communication network for faults or disconnections.
- 3
Ensure all network communication parameters (e.g., A103 [CommData Rate], A104 [CommNode Addr], A107 [CommFormat]) are correctly configured and match the network settings.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Allen-Bradley PowerFlex 4 Adjustable Frequency