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SRVO-071

Abnormally High Feedback Speed

Fanuc · R-30iB Mate + Mate Plus Robot

¿Qué significa SRVO-071 ?

The feedback speed reported by the motor's Pulsecoder is abnormally high, exceeding expected operational limits. If this alarm occurs concurrently with the SRVO-064 (PHAL alarm), SRVO-064 is considered the primary cause.

Causas comunes

  • Axis moving at an unexpectedly high speed indicated by the pulsecoder feedback.
  • External force causing rapid unintended axis movement.
  • Incorrect servo motor command or velocity loop tuning.
  • Pulsecoder generating erroneous high-speed feedback due to internal fault.
  • Mechanical resonance causing rapid oscillation of the axis.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Ensure the robot connection cable (RMP1, RP1) connector (CRF8) on the 6-Axis servo amplifier and the connector on the motor side are tightly connected.

  2. 2

    Check that the shielding of the robot connection cable (RMP1, RP1) is securely grounded in the cabinet.

  3. 3

    Replace the Pulsecoder.

  4. 4

    Replace the servo amplifier.

  5. 5

    Replace the robot connection cable (RMP1, RP1, RM1).

  6. 6

    Replace the internal cable of the robot (for the Pulsecoder, or for the Motor).

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