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Fault codes › Fronius › Fronius Symo UL (10.0-3 to 24.0-3 208-240/480)

Fronius Symo 581

Code
581
Shown as
Setup "Special Purpose Utility-Interactive" (SPUI) is activated
Vendor severity
Class 5
ID
fc:fronius-symo-581
IRI
https://solarlattice.org/kb/fc/fronius-symo-581
Status
active
Also known as
581, Fronius 581, Setup "Special Purpose Utility-Interactive" (SPUI) is activated
Category
Inverters
Class informational drafted · lead
Production not stated
Clears after a manual reset drafted · lead

Decoded

Reports anti-islanding protection disabled.

What can be behind Anti-islanding protection disabled

Failure modes that present as the reported condition, and the tests that tell them apart.

Defined in

The manufacturer's own cause and corrective text is not reproduced here.

Claims

defined_in

c1 drafted · lead fronius-symo-ul-emanual-status-codes

reports

c2 verified · fact Anti-islanding protection disabled

Special grid setup turns off islanding protection and changes frequency and voltage limits.

verified by: review-workflowverified on: 2026-10-23

has_event_class

c3 drafted · lead Informational (status or configuration message)

Vendor says this is not an error; it is a configuration status.

has_recovery

c4 drafted · lead Manual reset (operator restarts or acknowledges)

Operator acknowledges the code on the display.

applies_to

c5 drafted · lead Fronius Symo

Data