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Over-voltage of Capacitor Module (ECM)

Fanuc · Alpha i Series AC Servo Motor and Spindle

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The voltage across the Capacitor Module of the ECM has exceeded its maximum safe operating voltage. This indicates an issue with charge control or excessive regenerative energy.

Häufige Ursachen

  • The voltage across the capacitor module exceeds its maximum rated voltage.
  • External voltage surge applied to the capacitor module.
  • Faulty capacitor module components (e.g., series elements).
  • Incorrect operation of balancing circuits within the module.
  • Overcharging of the capacitor bank.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    Inspect the Capacitor Modules for signs of bulging or damage.

  2. 2

    Check the ECM control module's charging and discharge control circuits.

  3. 3

    Verify the operation of the regenerative discharge unit if connected.

Alle Codes in diesem Handbuch durchsuchen (29)
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Fanuc Alpha i Series AC Servo Motor and Spindle