SMA 20000TL Installation - Manual (Page 27)

SMA Solar Technology AG 5 Electrical Connection
Installation Manual PCONTROLMOD-IA-en-15 27
Reporting the Switching Status of the Grid Relay
The multifunction relay can trip a signal to the grid operator as soon as the first inverter connects to
the utility grid. To enable this function, you must switch the multifunction relays of all connected
inverters in parallel.
Figure 9: Wiring diagram for reporting the switching status of the grid relay (example)