Can an RS6000 Smart inverter system with several RS6000’s in Parallel have each RS6000 connected to its own battery that the other RS6000 units cannot see?
Ie, each RS6000 Smart on its own isolated battery
Reason? - redundancy. If for example a battery goes offline for whatever reason and the RS6000 attached to that battery goes offline as a result, the other RS6000 units on thier own respective batteries will carry on inverting and carrying 230v ac loads.
In short, no.
The complete system must be wired to a single battery bank. We do not currently support multiple different battery banks for one connected 3 phase and/or parallel system.
By using the Victron NG battery system you can get some redundancy
You can easily make a parallel battery system (Master, Slave 1, Slave 2, etc.), which communicate with each other over RS485.
The GX device, in turn, receives data from the Master battery via CAN.
OK thanks for the info.
As i need to keep both kidneys the NG battery system is not an option to me.
This can be seen on the GX.
In parallel banks most battery manufacturers report how many are online.
And the system would only really shut down if you exceed the discharge current of the remaining battery and tripped the bms. Otherwise DC voltage is voltage.
PS the RS can handle running directly off PV if it is sufficient. And can sort of be a PV inverter if grid and PV are available. So in the even you do have a randm battery shut down you will survive.
Need to clarify here multi RS (which currently cannot be used in parallel) or inverter RS?
Thanks for the input - however this does not solve the problem - I would like to have several inverters in parallel for redundancy - the only inverters by Victron that can be setup in parallel and keep working if one of the parallel pairs goes off line is the RS 6000 smart. With a parallel battery system that has a master, if the master goes down the whole system goes down - not what I need.
So how to do it?
I don’t see any issues.
If your master inverter or master battery disconnects for any reason, the other inverters and batteries will continue to operate.
The only thing that will stop is the data flow from the BMS, and you’ll receive an alarm signal from the GX device.
In all other scenarios, the system will continue to operate until the DCL threshold is exceeded.
Ive succesfully used Semikron SKKE600 in the past but to feed 24VDC generator starter motors from two independent battery banks. Would not work for inverter-chargers, but only inverters should work. However far out of what Victron recommends
OK so it seems I am not understanding something clearly here…..
I get that if the master inverter goes down the other RS6000 Smart will keep chugging along…
So far all good….
However in a parallel battery system if the master battery goes down, it was my understanding that all the batteries go offline as the battery system needs the master battery to operate. Do I have that wrong?
Any number of batteries can fail (Including master), and even if only one remains, the system will continue to operate, provided that the discharge current does not exceed the DCL set in the BMS.
Diessel, thanks for the update.
Enjoy 
Apologies LX…i missed your reply here.
What I would like to achieve is 2 x RS6000 Smart Inverters connected in parallel and each RS 6000 connected to a different battery bank.
In this way I could lose an inverter and still have 1 x RS inverter carrying a load - ie, no black out. If both inverters were still functional but I lost a battery bank to either RS inverter then the effect is the same - 1 x RS inverter goes offline because of no DC input but the other RS inverter stays up and carries load.
This type of setup would give me a lot of redundancy - I could lose 1 of the 2 RS inverters through an inverter fault and still be OK. For batteries I could lose one bank or the other and still have one functioning RS inverter.
But I now get its not supported by Victron - would would happen if one did configure the system this way?
Officially it cannot be done yet, and that is only due to software…. Practically it does work but there are several software communication problems that at the moment do not have a solution yet… Thus in short what you want, there are more customers asking for, but it’s lower on the priority list than for example making multi RS working in parallel with grid connection and other even higher software priorities. The hardware Multi RS and inverter RS is able to have a battery per inverter… but you cannot put them all at the same canbus at the moment. By default each multi RS or inverter RS listens to canbus ID0 for the battery bms communication. Obviously the inverters need to be at the same canbus to work in parallel on the AC-out.
Now if you add a canbus connected battery to the ve-can bus than suddenly all inverter see that battery and think that is the battery they are connected to… Which is only true for the first inverter…. Long story short it simply doesn’t work properly yet with canbus connected batteries. Each battery need their own canbus ID and each inverter needs to know to what battery it is connected. There is no software for that yet.
Now if you use ATC/ATD contacts on each inverter…. Than you can make it work for now.
But another thing is that the inverters don’t know from each other that they are on a separate battery and one battery will be somewhat sooner or later empty and full. Which is also depending on the resistance on DC side and AC side…
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