Sorry LX but do I need to set also a general flag in the assistant?
No, you shouldnât need to.
I just loaded the assistant an now the multi are in pass trough and there is no way to go in inverter mode.
One more question the connection onthe relay has to be set on NC or NO.
After being stuck in Passthrough mode I had to load a new file without the assistants and finally the system went back to Inverter mode.
But the virtual switch setting still doesnât work. At this point I donât know what to do. May be a problem related to my system.
The relay on the GX is open for no connection, closed for connect. If that is how you program the assistant.
Passthrough can be related to bms not wanting a charge or discharge, rebulk offset or an energy meter problem.
The position of the relay is clear to me, it was just to be sure, I carried out the test anyway. I donât have a BMS connected to the system. The multiplus are not programmed to charge batteries. I donât have an external energy meter. Could it be a problem with the internal energy meter of the Multiplus? I donât have any error messages from the system. I still havenât found a solution to the problem and it drives me crazy.
So, in the end, is this problem solved or not?
Somebody marked it as solved, but the OP in #25 and #27 says that:
No the problem has not been solved yet.
This is the reason for the passthrough state.
I do not know who marked it solved.
LX, regarding the passthrough situation you may be referring to post #22, but that problem was resolved by removing the assistant. Furthermore, the inverters have never been set to charge batteries.
The real problem now is that setting a virtual switch to accept the grid doesnât work. Iâve tried both âignore AC inputâ and âdedicated ignore AC inputâ and neither works. A doubt I have that I canât find an answer to in the Victron documentation is whether I need to load the virtual switch on both inverters installed in parallel. I think I read somewhere that to ignore AC in parallel systems just set the switch on the Master unit.
Are the inverter switches in the ON position and not inverter only? If you suspect a Venus upgrade you can easily roll back as a test or if you already have 3.51 install the previous version manually.
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Hi Ejrossouw you gave me some information that had some effect on the system. I checked the buttons on the inverters and they were both in the ON position. Then I remembered that on Venus OS there is a setting related to the inverter where you can choose the settings:
On
Battery Charger
Inverter Only
Off.
The setting on Venus was Iverter Only. As soon as I set it to On the inverter went into passthrough mode. After about a minute or maybe less it went back into inverter mode even though my switch settings tell the system to accept AC in when the load is higher than 2000 W at that time the loads were higher than 3500 W but the batteries were at 100% and the panels were producing 5 KW. It is possible that the acceptance of AC in is also conditioned by the state of the battery and the photovoltaic production.
Finally I found a solution to the problem by using the assistant and configuring the Start and Stop Generator Function. I configured the assistant in the VE Bus as shown in the picture
Then connected the relay 1 of the Cerbo GX to the Aux1 input of the Multiplus Master with a cable. After that I set the Start and Stop generator function in Venus OS. Now everything works perfectly and the system connects to the network based on the battery voltage, the maximum load and the battery charge status.