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457

Grid relay is sticking or neutral conductor ground voltage too high

Fronius · Solar Energy

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The inverter is unable to feed energy into the grid due to either a sticking grid relay or an excessively high neutral conductor ground voltage. The neutral conductor ground voltage must be less than 30V for safe operation.

Vanlige årsaker

  • Malfunctioning (sticking) grid relay
  • Neutral conductor ground voltage exceeding 30V

Reparasjonssteg & Sjekkliste

Klikk på steg for å spore fremgangen.

  1. 1

    Check the grounding connection of the system

  2. 2

    Measure the neutral conductor ground voltage and verify it is less than 30V

Se alle koder i denne manualen (60)
Verifisert teknisk data. Sist oppdatert: March 2026

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