5. Loosen the screws of pins A(+), B(-), and G in either the 'Out' or 'In' RS485
terminal block.
Figure 39: RS485 terminal block wire connections
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
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
The wire for G is not from the same twisted pair as A or B.
7. Connect all B, A and G pins in all inverters. The following figure shows this
connection schema:
Figure 40: Connecting the inverters on a bus
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
-
Three Phase Inverter with Synergy Technology Installation MAN-01-00402-1.2
72
Creating an RS485 Bus Connection
