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Fronius · PV inverters · Fronius Symo 3.0–20.0 (three-phase grid inverter, SnapINverter)

STATE 560Power derating caused by overfrequency

Name in the manufacturer's documentation (service manual): Power derating caused by overfrequency[1]

In plain words (editorial)

The inverter reduces its power because the grid frequency is too high. The fault clears once the frequency is back within the permissible range and the inverter has returned to normal operation.

When to call a service technician: If the code keeps recurring, contact your system installer.

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →

Sources

Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.

  1. [1] Fronius Symo 3.0-3 – 20.0-3, Fronius Eco 25.0-3 – 27.0-3 – Operating Instructions (42,0410,2028, ed. 016-24082016) – distributor copy (42,0410,2028 (016-24082016)) , p. 49 manufacturer document – copy from a distributor quote verified 560 Power derating caused by
  2. [2] Fronius Symo / Fronius Eco – Operating Instructions (e-Manual HTML), Version 044-17072025 – chapter “Status diagnostics and troubleshooting” (text capture) (e-Manual 4204101909, 044-17072025) , p. 5 official manufacturer document quote verified As soon as the grid frequency is back within the permissible range and the inverter has returned to normal operation, the fault is rectified automatically
  3. [3] Fronius Symo / Fronius Eco – Operating Instructions (e-Manual HTML), Version 044-17072025 – chapter “Status diagnostics and troubleshooting” (text capture) (e-Manual 4204101909, 044-17072025) , p. 5 official manufacturer document quote verified If this status code keeps recurring, contact your system engineer
  4. [4] Fronius Symo / Fronius Eco – Operating Instructions (e-Manual HTML), Version 044-17072025 – chapter “Status diagnostics and troubleshooting” (text capture) (e-Manual 4204101909, 044-17072025) , p. 5 official manufacturer document quote verified Displayed when grid frequency becomes excessively high. The power is reduced.