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OPEN

FSSB Communication Error

Fanuc · R-30iB Mate + Mate Plus Robot

¿Qué significa OPEN ?

The OPEN (Green) LED indicates normal communication between the servo amplifier and the main board via FSSB. This fault occurs if the LED does not light, indicating a loss or abnormality in this critical communication link. This could be due to a faulty optical cable, servo card, or the servo amplifier itself.

Causas comunes

  • Fiber Optic Sensor System (FSSB) communication failure between controller and servo drives.
  • Damaged fiber optic cable or connectors in the FSSB loop.
  • Faulty servo drive or controller interface card in the FSSB.
  • Interference affecting fiber optic signal transmission.
  • Incorrect FSSB addressing or configuration.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Check the connection of the FSSB optical cable.

  2. 2

    Replace the servo card.

  3. 3

    Replace the servo amplifier.

Ver todos los códigos en este manual (53)
Datos técnicos verificados. Última actualización: March 2026

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Fuente: Fanuc R-30iB Mate + Mate Plus Robot