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F406

Phase switching without ready signal

Indramat · DIAX 04

¿Qué significa F406 ?

The DIAX04 SSE-03VRS drive attempted a communication phase switch (e.g., Sercos) without receiving the necessary 'ready' signal from the master controller or another network component. This indicates a synchronization or handshake failure, preventing the network from achieving a stable operational state. The drive faults to maintain communication integrity.

Causas comunes

  • Master controller failed to send the 'ready' signal at the appropriate time during phase switching.
  • Delay or loss of the 'ready' signal due to communication link issues (e.g., damaged cable, network congestion).
  • DIAX04 SSE-03VRS drive's communication interface is faulty, not detecting the 'ready' signal correctly.
  • Incorrect timing parameters or synchronization settings (e.g., S-0-0014) between the master and slave.
  • Firmware incompatibility or bug affecting communication handshakes.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the communication configuration and timing parameters on both the master controller and the DIAX04 SSE-03VRS drive, focusing on phase switching and ready signals.

  2. 2

    Inspect the communication cable (e.g., Sercos fiber optic) for any physical damage or poor connections.

  3. 3

    Check the diagnostic status of the master controller to confirm it is sending the 'ready' signal as expected.

  4. 4

    Ensure proper termination and absence of excessive electromagnetic interference on the communication network.

  5. 5

    Perform a full power cycle of the entire DIAX04 SSE-03VRS system and the master controller. If the fault persists, consider a faulty communication interface.

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Datos técnicos verificados. Última actualización: March 2026

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