Error code
SMA All models code 501
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Meaning
Grid fault / Grid frequency disturbance (501) The power frequency is not within the permissible range. The inverter has disconnected from the utility grid. Corrective measures: If possible, check the power frequency and observe how often major fluctuations occur. If fluctuations occur frequently and this message is displayed often, contact the grid operator. The grid operator must approve changes to the operating parameters of the inverter. If the grid operator gives his approval, discuss any changes to the operating parameters with the SMA Service Line
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Address of this page: https://www.remfixit.com/tr/sma/tum-modeller/501