User Guide

NOTE
Only the first and last SolarEdge inverter in the chain must be terminated. In
the other inverters in the chain, the DIPswitch must be in the off (down)
position.
11. If no surge protection is used, connect the grounding wire to the first inverter in the
RS485 chain; make sure the grounding wire is not in contact with other wires. For
inverters with a Connection Unit, connect the grounding wire to the grounding bus-
bar in the Connection Unit.
RS485 Bus Configuration
To connect to the monitoring platform:
1. Designate a single inverter as the connection point between the RS485 bus and the
monitoring platform. This inverter will serve as the leader inverter.
2. Connect the leader to the monitoring platform using Ethernet (refer to Creating an
Ethernet (LAN) Connection above).
To configure the RS485 bus:
All inverters are configured by default as followers. To configure the leader:
1. Make sure the inverter's ON/OFF/P switch is off.
2. Make sure that the AC circuit breaker on the main distribution panel is on.
3. Access SetApp, as described in Communication on page 4.
4.
From the Commissioning screen, select Site Communication > RS485- > Protocol
> SolarEdge > SolarEdge Leader.
5.
Return to the RS485- screen and select Follower Detect.
The system starts automatic detection of the follower inverters connected to the
leader inverter. The inverter should report the correct number of followers. If it does
not, verify the connections and terminations in all inverters in the chain.
6. To check the follower IDs and last communication time, select RS485- > Follower
List.
7. Verify the connection of the leader to the monitoring platform, as described below.
Chapter 2: Setting Up Communication with the Monitoring Platform 14
Communication Board for Inverters with SetApp Configuration