I’ve unfortunately made the silly mistake of purchasing 4 inverters at different times in an effort to parallel and split phase them. I’m reaching out to the community to see if someone has multi plus 48/5000 either a 2723 A or B that they’d be willing to swap with me so I could complete my system. Or if someone has information on what to do in this situation, that would be great. Thanks
If the models are the same, but the firmware is different, then the firmware can be upgraded.
If the models are different then have a look at the new Victron microgid topology.
Start with the manufacturing date - the first 4 numbers in the serial number.
That is one of the biggest considerations.
I did update the firmware on all four of them prior to trying to get them to configure my parallel and split phase in ve bus program. So it’s four inverters total two of them have the letter C, which will pair on one phase and then I have an a and a B which will not pair on the second phase.
Which specific inverter do you have?
With the 2 that are identical: these could be used as a split phase master in the microgrid topology, then the other two would operate one on each of the split phase in the microgrid.
Special firmware needs to be loaded.
The 2 x 120V models aren’t supported. Split phase topologies can be configured, for clarity.
It is also not really a DIY solution and only suitable for fully off-grid use - no gensets or any form of other AC generation.
It is an advanced config best discussed with suppliers, it isn’t a topic we are encouraging for this section given the complexities.
I have 4 multi +2 48/5000. So what I’m doing is paralleling two inverters each for each of the two phases so two inverters on leg one and two inverters on leg two. So on leg one I have two matching inverters 2723 – C. On leg number two unfortunately I have a mixed matched pair. I have an a in a B so they will not go together on the same phase, nor will they cooperate with either of the C units is if I was to swap them around
All of this has to get done in the VE bus program
Not VictronConnect
Check the ages, those 4 numbers in the serial number after the 2 letters.
The main requirement is the same model type - 2723. There are model variations that can affect how they work together but it doesn’t mean they won’t work together.
The bigger the age gap the more likely there is a problem.
You always configure the newest as master.
Well, from the information I’ve gathered the letters have to match for the two inverters that are gonna be on the same phase, which is why I don’t have an issue with my 2C units being paired together. The program allows that to happen, but it won’t let me pair the A and B. Even though the numbers match.
The one inverter is 2434 for the first four numbers in the serial number
The other one is 2447
The bus configuration will not let you put different comp ids on the same phase. So sayeth the manual, so sayeth my experience, and so sayeth Victron. I asked further and there is a physical difference between the internals of the comp ids to comply with different codes. I also asked if I could send my As in to be upgraded… that question was ignored.
Yeah, you’re the guy I wanted to talk to from the other chat that you started I was curious if somehow, I could help you by swapping one of my A’s or B to complete both of are systems
This must be something to do with 120V systems, not noticed that on 230V but the note is now clear in the docs. hmm.
edit: OK so this is fairly new and still being fully rolled out, and it seems not very widely known, hence the confusion.