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08490000

Overcurrent Error

Omron · NJ/NX-series Machine Automation Controller

Hva betyr 08490000 ?

The current drawn by the motor has surpassed a predetermined protection threshold, indicating an excessive load or electrical anomaly within the motor or its wiring. This can cause damage to the motor or drive.

Vanlige årsaker

  • Short-circuit, ground fault, or contact failure on motor cables U, V, or W
  • Short-circuit on the wiring of the External Regeneration Resistor
  • Insulation breakdown between motor cables U, V, W and motor ground wire
  • False overcurrent detection due to electrical noise
  • Internal Servo Drive failure

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Measure insulation resistance between motor phases U-V, V-W, U-W, and between each phase (U, V, W) and motor ground. Expect values >1 MΩ.

  2. 2

    Visually inspect motor cables U, V, W and their connections for signs of short-circuit, ground fault, or contact failure.

  3. 3

    Inspect the wiring of the External Regeneration Resistor for any short-circuits.

  4. 4

    Verify proper grounding and shielding of the Servo Drive and motor cables to mitigate noise.

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Verifisert teknisk data. Sist oppdatert: March 2026

Relaterte feilkoder

Kilde: Omron NJ/NX-series Machine Automation Controller