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401
Grid fault
SMA · Sunny Boy Solar Inverter
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The inverter has disconnected from the utility grid because it detected a stand-alone grid condition or a very large change in the power frequency. This protects the inverter and grid from unstable power conditions.
Vanlige årsaker
- Detection of a stand-alone grid (island operation).
- Significant short-term fluctuations in the power frequency of the utility grid.
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Check the grid connection for significant short-term frequency fluctuations.
Verifisert teknisk data. Sist oppdatert: March 2026
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Kilde: SMA Sunny Boy Solar Inverter