6 Electrical Connection
SMA Solar Technology America LLC
Installation ManualSTP50-US-40-IA-en_es-1134
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 8: Circuit diagram with multiple inverters for connection to an operation indicator and circuit diagram for
connection to a fault indicator (example)
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