Rs485 Bus Configuration - SolarEdge SE66.6KUS Installation Manual

5. Loosen the screws of pins A(+), B(-), and G in either the 'Out' or 'In' RS485 terminal block.
6. Insert the wire ends into the G, A and B pins shown above. Use one terminal block for the previous
inverter in the bus and the other terminal block for the next inverter in the bus, as shown in Figure 45.
You can use any color wire for each of the A, B and G connections, as long as:
The same color wire is used for all A pins the same color for all B pins and the same color for all G
l
pins
The wire for G is not from the same twisted pair as A or B.
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7. Connect all B, A and G pins in all inverters. The following figure shows this connection schema:
8. Tighten the terminal blocks screws.
9. Check that the wires are fully inserted and cannot be pulled out easily.
10. Push the RS485 terminal blocks firmly all the way into the connectors on the communication board,
see Figure 43.
11. Terminate the first and last inverters on the bus by moving the termination switch to ON (left
position); See Figure 43. 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 m onitoring platform via the LAN option (refer to Creating an Ethernet
(LAN) Connection on page 61) or any of the other options.
-Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.4
Figure 44: RS485 terminal block wire connections
Figure 45: Connecting the inverters on a bus
Chapter 6: Setting Up Communication
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