Rs485 Bus Configuration; Verifying The Connection - SolarEdge SE12.5K Installation Manual

11. Terminate the first and last inverters on the bus by moving the termination switch
to ON (left position); See Figure 38 . The other inverters on the bus should have
the termination switch OFF (right position).

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 master inverter.
2. Connect the master to the monitoring platform via the LAN option (refer to
Creating an Ethernet (LAN) Connection on page 66) or any of the other options.
To configure the RS485 bus:
All inverters are configured by default as slaves. To configure the master:
1. Verify the ON/OFF/P switch is OFF.
2. Verify that AC is on.
3. Turn ON the Connection Unit.
4. Use SetApp to access the Commissioning menu screen as described in
Communication on page 45.
5. From the Commissioning menu tap Communication. The Communication screen
is displayed.
6. Select the following to configure the connection:
Server è LAN
RS485-1 è Protocol è SolarEdge Master
RS485-1 è Slave Detect
The system starts automatic detection of the slave inverters connected to the
master inverter. The inverter should report the correct number of slaves. If it does
not, verify the connections and terminations.
7. To check the slave IDs and last communication time, select RS485-1 è Slave List.
8. Verify the connection of the master to the monitoring platform, as described in the
next section.

Verifying the Connection

After connecting and configuring a communication option, perform the following
steps to check that the connection to the monitoring server has been successfully
established.
Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.2
Chapter 6: Setting Up Communication 73