Hi can anybody help with the assistants for my shore power input in quattro [input2]? i have installed this set of assistants but the quattro does not respond when programmed soc is acheieved.i have enabled the battery monitoring in the quattro and also have a lynx shunt in the system.Any ideas on what to try?
You have not defined anything for the ACOut 2 relay in the wizard itself. If you have, programme the option for ‘OFF’ last.
Replace the programmable relay with the ‘ACOut2’ relay in the wizard
thanks for the response but i don t understand your recommendation i am trying to control ac in 2 relay using SOC .
@Rondo It may help to provide what you are trying to achieve in an overall sense so the functionality of assistants can be better understood.
Hi Trevor ,
The system i am working on is land based and has a large solar array .The loads are supported by 3 quattro 48v 15000 in parallel.
What i am trying to achieve is that the batteries are used after the sun goes down until they are at 20% soc .Then the input 2 relay is closed connecting the grid power to the quattros to support all the ac loads .I dont want to charge the batteries at all only support the ac loads .Then when the solar output brings the batteries above 21 % soc i want the input 2 relay to open and disconnect the grid power.
@Rondo I am guessing you have gone through the provisions of the ESS assistant and it does not do what you need? It may provide a really good basis for your functional requirement.
@Rondo
How you have combined them, both conditions have to be met for the condition to happen. (And logic)
If you need it to be either SoC or load then you need to make a condition/assistant for them separately.
On is always prioritised over off.
See the manual.
Combining multiple Assistants
Multiple Assistants can be used in one unit. For example the Programmable Relay is often used multiple times. When doing so; this is how they are evaluated:
- an ON condition always has priority over an OFF condition - multi criteria in the ON ( or OFF ) list go by the OR principle
Wouldn’t it even be better, contrary to the recommendation, to swap AC In1 and Ac In 2 for your use?
AC In 1 then becomes mains
AC In 2 then becomes the generator
You could then simply ignore the AC In via a virtual switch.
Should your conditions be defined as AND or OR?
wow thanks for all the responses.
Trevor.-i did try to set up ess and had it working but the power company told me it was back feeding the grid even though i programed it not to so…
LX-ok i changed the assistants and removed the load parameters leaving only the soc but still no joy…
Steffen i have the generator connected to the ac input 1 so that it is the priority supply plus i am working remotely so changing the inputs really isnt as good an answer as making the assistants work.
That is odd.
Have you ever used node red?
With ESS did feedback only happen when solar was producing? Is this a single inverter system?
no i have not.
yes the feedback was when solar was producing power .
No this system has 3 quattros in parallel.
why does this set up not respond ??
Sorry about the terrible spelling in the previous post. My eyes apparently auto correct bettter than the phone did.
Ooh a parrallel.
Is the assistant on the master?
I have not tried an ac ignore assistant on a parallel system.
Is the internal monitor enabled?
yep the assistants are in all three units.
yep internal monitor enabled on all three units.
I think it only needs to be on the master unit. As they will switch as a group.
The other one to try is the generator assistant to ignore ac.
You could go old school and have a daylight sensor switching a contactor to disconnect the input during light hours and run ess.
Edited: {I see the words shore power and marine so not really a place to have ess}
I also tried this gen assistant without any response from the quattros. I have got to say that i am stuck on how to acheive the simple settings that are needed on this project .
Given the SOC levels you’re trying to switch at, you may also have managed batteries that produce an SOC. Having multiple sources that rarely correspond is never recommended, and you can’t select which one the Assistants use.
I don’t see anything essentially wrong with your Assistant programming, but your SOC source needs clarifying. With Assistants using one and you monitoring another, a recipe for confusion…
Hi John thanks for the response i read this from Guy and understood that i had to enable both soc sources as in this article. Has this changed?
Guy Stewart (Victron Community Manager) 
elvistherv commented · Nov 05 2019 at 9:19 PM
Hi @ElvisTheRV,
Once the VE.Direct cable is connected between the BMV-712 and the CCGX, it should automatically take priority as most accurate SOC measurement. Though it would be worth to check that setting in the CCGX.
The Assistant will not update that description and still stay internal battery monitor, and that internal battery monitor still needs to be enabled on the Multi, but the value used there will be overwritten by the GX device from the BMV.
It’s probably changed (if it was ever like that). I ran an Assistant for a long time successfully with a Smartshunt SOC and the Multi SOC disabled. But I don’t know what happens with the SOC from a managed battery.
I’ve never seen this officially documented, that’s the real issue for me. Victron have long recommended to installers that they disable all but one SOC source as multiples confuse endusers. I reckon that’s good advice, but surely would be interested to hear of any quirks (especially Assistants not using SOC from a supported managed battery).
This is like DVCC without a choice. And warrants testing in every installation.