11. If not using surge protection, 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 DC Safety Unit, connect the grounding wire to the grounding bus-
bar in the DC Safety Unit.
To connect to the monitoring platform:
1. Designate a single inverter as the connection point between the RS485 bus and the
SolarEdge monitoring platform. This inverter will serve as the leader inverter.
2. Connect the leader to the SolarEdge monitoring platform via the LAN or ZigBee or
cellular communication option.
3. Install an RS485 Plug-in in every EV Charging single phase inverter , refer to the
'Installing the RS485 Expansion Module' chapter in the RS485 Expansion Kit
Installation Guide and to configure the RS485 bus refer to the following sections.
To configure the RS485 communication bus:
All inverters are configured by default as followers. If reconfiguration is required:
1. Make sure the ON/OFF switch is OFF.
2. Turn ON the AC to the inverter by turning ON the circuit breaker on the main
distribution panel.
WARNING!
ELECTRICAL SHOCK HAZARD. Do not touch uninsulated wires when the inverter
cover is removed.
3.
Use the internal buttons to configure the connection. To set the inverter designated
as leader, select the following in the LCDmenus:
Communication è Server è LAN, ZigBeeor Wi-Fi
RS485- Conf. è Device Type è SolarEdge
RS485- Conf. è Protocol è Leader
RS485- Conf. èFollower 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.
4. Verify the connection of the leader to the monitoring platform, as described in the
next section.
Three Phase System MAN-01-00507-4.2
76 Creating an RS485 Bus Connection
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