Wondering when the firmware for parallel operation of the Multi RS inverters will be done? I have made a mistake on reading the wrong data sheet which supports parallel operation and have since just discovered that it can’t be done. From previous posts I can see a similar discussion from 2 years ago! Surely something has been done by now? @guystewart
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Please review the community guidelines.
As you know it is in the works, but is subject to more than just getting it to function.
Apologies. I have read the guidelines.
Does anyone know a time frame at all? Otherwise I will need to re-design, but can wait if it’s not far around the corner.
Can I choose a three phase system with only 2 inverters and run it as a 2 phase system instead?
I believe I got confused between the RS Solar which supports parallel operation and multi RS which currently doesn’t so I’m in a bit of a pickle!
I think the ones that do won’t be answering.
It is best to design without it being an option.
Yes the inverter RS does.
For the Multi RS you need three minumum.
There is a workaround where it allows operation with a missing unit from the can bus. It does rin an error message though. I have used it when a remote site damaged their one unit and had to continue for a bit with 2.
If three RS units are configured in three phase, each individual unit will only continue to work if it sees at least one other unit. This feature is only relevant in combination with the "Continue with missing phase" feature.
A previous roadmap preview stated that Multi RS gridcode support was the priority.
Complete speculation, but the focus might now be on parallel support since gridcodes are rolling out.
No idea of a time frame
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I am facing the same challenge and have been waiting for some time for the possibility of parallel operation of Multi RS. In the meantime, both have been installed and I will be using an automatic transfer switch on the AC side for the time being.
For certain applications, the plan is to use both Multi RS as chargers-only on the DC side (off-grid-installation) until paralleling has been released.
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I’ve been waiting for this for a very long time (not measured in days or months), and I appreciate that it’s ready when it’s ready, but I have to be honest that I’ve given up on every seeing it.
I understand the companies internal resourcing is none of our business but the total secrecy has broken my faith in the product ever doing it.
I have 3 of them waiting for parallel…
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Does anyone know if there is a email where I could try and get a rough answer?
My customer is happy to wait if it’s around the corner, but it would be nice to have some form of time frame. Otherwise we will have to look into other options
I have the feeling that you (we) won’t get parallel option on the current Multi RS hardware…
Especially that they have to harmonize this with the feed-in ability.
But I may be wrong. Time will tell.
You won’t get an answer about this, as the process is complex and iirc there was a focus on certification, ESS etc.
If you need it in a hurry, I would suggest you consider a plan B.
You can try your regional manager, contact details on the main victron site.