question

thezeroth avatar image
thezeroth asked

Can two Multiplus provide the same functionality of one Quattro?

I know that "Similar to the MultiPlus, the Quattro is also a combined inverter and charger. Additionally it can accept two AC inputs and automatically connect to the active source."

now if buy 2 MultiPlus, can they be configured to work together and provide the same functionality as 1 Quattro, another words: can I accept two AC inputs and automatically connect to the active source when using 2 MultiPlus at the same time.

the answer to this question is not clear, there are conflicting information about this question, nowhere in the manuals i could find a direct answer. would be nice if someone from Victron could provide a definite answer.

--Added--

I am assuming that 1 Quattro can combine the power of 2 different AC inputs for charging of the 1 battery bank, but i might be wrong in my assumption and 1 Quattro might be only able to automatically switch between 2 different AC inputs.

MultiPlus Quattro Inverter Charger
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Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Should be possible with the "VE.Bus System Configurator" and selecting "2 AC inputs"
(open VE.Bus System Configurator, click on "help" and on "Tutorial" to learn how to use it)

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Kevin Windrem avatar image Kevin Windrem commented ·

In this configuration, how are the Multi's wired? Specifically what happens on the AC inputs and AC outputs? Do the Multi's combine power for the output?

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ Kevin Windrem commented ·

The outputs are wired in parallel (2-phase/3phase is also working, split-phase should also working).
The output power is combined like in a "normal" parallel setup (input and output paralled).
The inputs are separated, one to shore and one to generator.
AC IN 1 has priority over AC IN 2.

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