Electrical Connection SMA Solar Technology AG
34 WB33_38-IEN101830 Installation Guide
5.7.2 Setting Off-Grid Operation
To operate the inverter in an off-grid system with Sunny Island, you must set the inverter via the
"Default" parameter to off-grid ("OFF-Grid") operation.
You have several possibilities to set the inverter to off-grid operation:
• Setting via Sunny WebBox
or
•Setting via Sunny Data Control.
DANGER!
Danger to life due to high voltages in the event of outage of the public grid.
If you set the inverter to off-grid operation, it does not fulfill any country-specific standards
and regulations. Therefore, if there is an outage of the public grid, there is a danger of back
feed.
• Never operate the inverter directly on the public grid when set to off-grid operation.