The utility grid has been disconnected, the AC cable is damaged or the grid voltage at the connection point of the inverter is too low. The inverter has disconnected from the utility grid.
• Make sure that the circuit breaker is switched on.• Ensure that the AC cable is not damaged and that it is connected correctly.
• Ensure that the country data set has been configured correctly.• Check whether the grid voltage at the connection point of the inverter is permanently in the permissible range.If the grid voltage is outside the permissible range due to local grid conditions, contact the grid operator. The grid operator must agree with an adjustment of the voltage at the feed-in point or with a change of the monitored operating limits.If the grid voltage is permanently within the permissible range and this message is still displayed, contact the Service (see Section 8, page 67).