SolarEdge Power Harvesting System Installation Manual page 57

SolarEdge Installation Guide for Three Phase Inverters – EU – Version 1.5
3 The RS485 bus uses a four-wire telephone cable and a six-wire RJ11
connecter (also known as RJ25). Insert the wire via one of the small
cable glands. The glands come from the factory pre sealed. Removal of
the sealing is required in order to insert the cable.
CAUTION:
If a gland is opened and not used, be sure to reseal it. Otherwise, it may affect
the inverter's functionality.
4 After inserting the wire, crimp a connector using a standard telephone
wire crimper. Two pins (numbered 2 and 3) must be connected. The
two wires must both belong to the same twisted pair, which is usually
indicated by similarly colored wire. In addition, a grounding wire that
is connected to pin number 6 must also be connected. For this purpose,
you can use any remaining wire of the telephone cable. The wiring on
the next inverter should be the same.
Figure 26: Crimping the Wires
5 Connect the RS485 cable connector to either of the RS485 plugs on
boards in the inverter.
6 Connect the other end of the RS485 cable of the first inverter through
the gland to the RS485 connector on the board of the next inverter in
the chain, as described above.
7 You can use both RS485 connectors to wire up to two inverters – one
to the left and one to the right.
Setting Up Communication
57