Paralleling 3 Phase inverter

Created by Hollie Polis, Modified on Fri, 15 Aug at 12:32 PM by Hollie Polis

Paralleling three phase inverters
1. Make sure that there is a common battery bank wired to each inverter (we strongly recommend using a busbar) as shown on the below picture.



2. Connect the RJ45 cables and parallel the corresponding inputs:
a. If on-grid system, parallel the grid ports, if essential loads are also present on the on-grid system parallel the load port as well.
b. If on off-grid systems parallel the load ports only.



3. Make sure that all inverters have the same firmware version:
a. Go to the settings screen on the inverter screen
b. Check the bottom right of the screen next to COMM and MCU and ensure that the numbers are the same on all the inverters.
4. Do the settings on the inverters:
a. Go to advanced settings.
b. Enable parallel operation.
c. Set one inverter as master:
i. Select “Master”.
ii. Ensure that Modbus SN is set to 1.



d. Set the slave inverter:
i. Select “Slave”.
ii. Ensure that Modbus SN is set to 2.



e. Set next slave inverter (if there is another inverter).



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