SMA SUNNY BOY 3.0-US Instructions D'installation page 38

6 Electrical Connection SMA Solar Technology America LLC
Using the Multifunction Relay as a Fault Indicator Contact
You can use the multifunction relay as a fault indicator contact and have an error or smooth
operation of the inverter displayed or signaled via a suitable display device. You can connect
multiple inverters to one fault indicator or operation indicator, as needed.
Figure 11 : Circuit diagram with multiple inverters for connection to an operation indicator and circuit diagram
for connection to a fault indicator (example)
38 SB30-77-1SP-US-40-IA-xx-13 Installation Manual