question

Halimi avatar image
Halimi asked

Paralleling of multiplus 2 3000/48

Good morning,

I have an installation in operation with PV, MPPT, Batteries and a Multiplus 2 3000/48.

Wishing to increase the wave power, I bought another new multiplus 2 3000/48.

I would like to put them in parallel following the instructions you give (identical firmware etc.)
Both models are type: PMP482305010

The one in service has the SN: 2025T6MVVP

The one I bought has SN: 22389M4RF

Are these two multiplus 2 3000/48 devices compatible for parallel operation?

Sincerely,

Philip
Multiplus-II
2 |3000

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2 Answers
Duivert NL avatar image
Duivert NL answered ·

hi there should be HW revision sticker on them or on the box it came in

HW revision number should be the same, if not ask your supplier if they can check the serials if they can work in parallel

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nickdb avatar image nickdb ♦♦ commented ·

Inverters don't have revision numbers on them.

Those two are 2 years apart and a few years old already, some major changes were made some time around 2022.

Use the newer one as master, they should work ok, but systems that have been in use for so long often don't balance well.

It is usually not a great idea to pair systems if one is already 4 years old.

You have them already, so may as well try.

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Duivert NL avatar image Duivert NL nickdb ♦♦ commented ·

well my multiplus 2's do have revision number stickers on them...

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nickdb avatar image nickdb ♦♦ Duivert NL commented ·
Just looked at mine again. Don’t see any.

If it isn’t reported on vrm, it usually isn’t on a sticker.

They all have the exact same hardware ID.

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Duivert NL avatar image Duivert NL nickdb ♦♦ commented ·
hardware revision is the difference between main pcb's inside the inverter.

you can't see the hardware revision number in VRM

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nickdb avatar image nickdb ♦♦ Duivert NL commented ·

The point is, you cannot tell externally or from the sticker on the outside. So for most people who don't want to dig around inside, your only reference is the date of manufacture.

Even then, it isn't publicised when power-packs change, and when they do it isn't guaranteed that it won't work together.

There is no guidance about different "revisions".

Where they are known not to pair well, repair centers are usually aware and there is a program to deal with mismatched systems that fall within a suitable date range for upgrading.

The OP has somewhat old inverters.

Personally I would not try mate a 4-year old inverter to a newer model.

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Duivert NL avatar image Duivert NL nickdb ♦♦ commented ·

"Personally I would not try mate a 4-year old inverter to a newer model"

nope i wouldn't do that either!

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Halimi avatar image
Halimi answered ·

img-2794-grande.jpegimg-2795-grande.jpeg


for more information here is the two sticker

the technical characteristics are strictly identical




img-2794-grande.jpeg (368.0 KiB)
img-2795-grande.jpeg (350.9 KiB)
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Halimi avatar image Halimi commented ·
thanks a lot for your answers
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