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Each invert will require a fuse isolator with surge protection and each group circuit will
require an RCD. If the batteries as supplying power to the main load during the outage
then a change over switch will also be required or a split load can be used.
The CT coils used to limit export power must only be connected to the master.
Therefore, if six inverters are paralleled, three CT coils will be required.
Connect a RJ45 communication cable between each inverter; the order is not important
since both sockets are the same, so there is no IN or OUT.
Each phase must only have one master and the others set to slave.
Each inverter must have a unique Modbus number.
The maximum length of the communication cables is 2 meters (do not exceed this
value)
All batteries must be connected in parallel and the MPPTs must be kept separate.
If you need further help please refer to the Sunsynk website where you will find training
videos and Frequently Asked Questions www.sunsynk.com. From here you can also
update the inverter operating system if required. In most cases, our inverters are fine as
they are and no upgrades are needed.
Some common questions that occur when paralleling inverters:
Q1: What is the sequence to install/connect/commission?
The cables have two ends, one to be specifically connected to the BMS and the
another one to be connected to the inverter, do not change it.
If the communication is not working correctly between inverters then errors will show
up on the display. In this case, please check all settings and data cable.
NOTICE
The load outputs can be connected in parallel.
The grid input can also be connected in parallel.
You cannot connect the Aux/Gen port in parallel, because this causes a conflict
between the frequency of the generator and the frequency of the grid.
NOTICE
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