Electrical Connection SMA Solar Technology AG
52 SB30TL_40TL_50TL-IA-IEN120231 Installation Guide
5. Connect wires to the terminal using a screwdriver.
The connection plan shows where the wires must be
connected, depending on whether you require an
operating or an error message.
6. Tighten the lock nut firmly to the cable gland.
7. Close the inverter as described in section 7.3”Closing the Inverter” (page64).
8. Switch on supply voltage
☑The multifunction relay is now operational.
5.6.3 Communication module
The inverter can be equipped with a communication module in order to engage in wire-linked
communication with special data acquisition devices (e.g. Sunny WebBox) or a PC with
corresponding software (e.g. Sunny Data Control).
A detailed circuit diagram and installation description can be found in the communication module
manual.
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