Creating An Rs485 Bus Connection - SolarEdge SE3000US Installation Manual

Creating an RS485 Bus Connection

The RS485 option enables you to create a bus of connected inverters (consisting
of up to 30 Slave inverters and 1 Master inverter). Using this option, inverters are
connected to each other in a chain, meaning the first inverter in the chain is
connected to the next inverter in the chain via its RS485 connector. The first
inverter in the chain and the last inverter in the chain must be terminated.
Figure 42: Example of RS485 Bus Connection
Each inverter must be connected according to the instructions below.
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To connect the RS485 communication bus:
1
Open the cover of the inverter, as described in the Opening the Cover section
on page 37.
2
Using the user buttons, select the 5.2.3 RS485 option under the
Communication  Bus menu (5.2), as described in the Configuring the
Inverter Using the LCD Panel and User Buttons section on page 88.
3
For all slave devices, using the user buttons, select the 5.1.3 RS485 option
under the Communication  Server menu (5.1), as described in the
Configuring the Inverter Using the LCD Panel and User Buttons section on
page 88.
SolarEdge Installation Guide – MAN-01-00002-1.6
Setting Up Communication
75