Wiring the Inverter
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Connect the Communications Cable between Inverters in Parallel
The following procedure is illustrated in Figure 3-11 on page 3–17. The
illustration and procedure assume only two inverters connected in parallel.
However, there can be more than two inverters wired in this configuration.
To provide communication between i nverters mounted in para llel:
1. Remove the wiring box cover from each unit.
2. On each unit, remove the plug from a 1.9 cm (3/4”) side conduit hole and
install appropriate conduit between the two units.
3. Connect the communication cable to any RJ45 port in Inverter #1.
4. Pass the cable through the conduit between Inverter #1 and Inverter#2.
Inside each unit’s wiring box, ensure the communication cable runs
horizontally along the flat-bottomed channel formed when the insulation
barrier is in place. The cable should run on top of the insulation barrier and
out the side conduit hole, avoiding any contact with the AC and DC wiring.
5. Connect the communication cable to any RJ45 port in Inverter #2.
6. For more than two inverters in parallel, continue connecting cable as
described above.
7. Insert male network terminators into the empty RJ45 ports in the inverters at
the beginning and end of the network. There should be no empty RJ45 ports.
WARNING: Shock hazard
If the inverter is already installed and operational, turn OF F the bre ake r switches in the
main utility service panel and the AC/DC Disconnect switch on the inverter wiring box
before performing this procedure.
WARNING: Shock hazard
Hazardous voltages may be present when cover is removed. After disconnecting all
sources of energy, wait 5 minutes before removing cover.