HYBRID INVERTER | Installer Manual
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5.17. Advanced Settings for Paralleling Inverters
To configure multi-inverter settings, click on the ADVANCE icon.
What this page displays:
If the inverter operates as a master or a slave.
Modbus Device ID – ‘Modbus SN’ that must be unique for each inverter connected to the bus/wire.
What you can do from this page:
Set the inverter as a master or slave per bus/wire.
Set the phase in which the inverter will be paralleled.
Set the Modbus SN for paralleling.
The Sunsynk parity inverter can be wired standalone or where more power is required it can be connected
in parallel either single or 3 phase configuration.
The maximum number of
inverters that can be paralleled in a single phase utility grid is 16 and the maximum
number that can be paralleled in a three phase utility grid is 15.
A
A master single phase inverter is capable to operate with other 15 slaves inverters. Thus, to parallel 16 in-
verters in a single phase utility, one will operate as the master, and the other 15 will operate as slaves.
To parallel 15 inverters in a three phase utility grid is necessary to set three inverters as master and the
others as slaves:
Phase A: Master A and 4 Slaves A
Phase B: Master B and 4 Slaves B
Phase C: Master C and 4 Slaves C
In a three phase utility grid, the paralleled inverters will operate as a normal three-phase supply with perfect
phase rotation, capable of power single phase (220 V
LN
) and three phase (380 V
LL
) loads.
For stability, all the batteries need to be connected in parallel. It is recommended a minimum cable size of
50mm2 diameter with fuse isolators to each inverter.
