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sunsense asked

Conditional AC input control not switching to grid on low voltage

Multiplus 12/3000 V465

Using Victron Connect v5.16


I set the Conditional AC input control on and set the voltage for 12.65V, but when the voltage drops below that, it fails to switch back to the grid.


MultiPlus Quattro Inverter Charger
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4 Answers
sunsense avatar image
sunsense answered ·

OK - I have now used the vfconfigure v90.04.207 (latest).

I set the virtual switch to 'ignore ac input: vs on = do not ignore, vs off = ignore'

I set the on and off high for testing as I don't want to wait all day.

vs on = when udc lower than 13.40v aka do NOT ignore ac input

vs off = when udc higher than 13.70v aka ignore ac input

I sent it to the multiplus, selected 'get settings' to confirm it all took and waited for a bit.

DC is now 13.20v. It still hasn't switched to the AC in. aka the Grid.


Any ideas why this isn't working ???



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sunsense avatar image
sunsense answered ·

I just had a Grid/L1 connection, and thought wow, it just started working. Then a few seconds later, the Grid/L1 side turned off, even though the battery voltage is now at 13.1V.


Bizarre behavior.


So it's still not working.


Do Victron techs ever frequent this forum ?


Or do I need to contact them directly ?

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Daniël Boekel (Victron Energy Staff) avatar image
Daniël Boekel (Victron Energy Staff) answered ·

Hi @sunsense

Please first try without assistants / virtual switch if AC is accepted, if everything works correctly, try advanced settings.


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sunsense avatar image
sunsense answered ·

The AC/Grid works during normal use, as does the charger.


But I am trying to use it as solar/battery preferred. Then when the battery is low, charge it to x volts from the AC/Grid.





11 comments
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Ok, now if you share the assistants (or virtual switch) settings here (screenshots), then we can help you to get things working.

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sunsense avatar image sunsense Daniël Boekel (Victron Energy Staff) ♦♦ commented ·

Attached are the 4 screen grabs of the VS.

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victron4.png (277.1 KiB)
victron3.png (297.2 KiB)
victron2.png (291.3 KiB)
victron1.png (235.5 KiB)
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