3 Pull out the 9-pin RS485/RS232 terminal block connector, as shown below:
Figure 20: The RS485/RS232 terminal block
4 Loosen the screws of pins A(+), B(-),and G on the left of the RS-485 terminal block.
Figure 21: RS485/RS232 terminal block
5 Insert the wire ends into the G, A and B pins shown above. Use Four- or six-wire twisted pair cable
for this connection. 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 pins.
6 Connect all B, A and G pins in all inverters. The following figure shows this connection schema:
Figure 22: Connecting the inverters in a chain
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