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Charging Fault

Vacon · NX Liquid-Cooled Drive

Hva betyr 4 ?

The pre-set charging time for the DC-link, defined by parameter P.2.1.3 (MaxChargeTime, default 5 seconds), has been exceeded. Specifically, the DC voltage failed to rise above 40VDC within 1 second during the initial charging sequence.

Vanlige årsaker

  • DC bus voltage not reaching nominal levels during charging.
  • Faulty charging contactor or relay.
  • Internal failure in the power supply unit.
  • Issue with rectifier bridge or input power.

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Inspect the external charging circuit components, including the charging resistor, for proper dimensioning and integrity.

  2. 2

    Verify the value of parameter P.2.1.3 (MaxChargeTime) to ensure it is adequately set for the system.

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Verifisert teknisk data. Sist oppdatert: March 2026

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