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wolle4000 avatar image
wolle4000 asked

How can I disable AC1 (Vitron Multiplus II) in dependance of SoC ?

I have a Solar Powered System with a Victron Multiplus II + Cerbo GX + MPPT150/30 + Pylontech Batteries.

I want to disable AC1 (Grid 230V Input) when the SoC is higher than 10%.

Or , other solution; I want to charge only with Solar Power and not with Grid POwer (AC1) when the SoC is higher than 10% (or 20%, 30%,...)

Is there a possibility to program the Multiplus II or is it only possible with the GenSet on/off function and a relay from the Cerbo GX?

Thanks in Advance!


Multiplus-IIcerbo gxSOC
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3 Answers
shaneyake avatar image
shaneyake answered ·

You can use an AUX input on the Multiplus to the relay on the cerbo. Use the start generator function to activate relay below 10%.

Then use the general flag assistant on the multiplus to ignore AC when aux 1 not triggered.

Is there a reason you aren't just using ESS?

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wolle4000 avatar image wolle4000 commented ·
Thanks for answering...in past I only had a system in my motorhome. But this setup is for my home. I have heard about ESS, but I don`t know how I can use this ?
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Dennis Leth Andersen avatar image
Dennis Leth Andersen answered ·

Yes agree. I have also just installed at ESS system based on two MP-II 48/5000, and it work very well. All settings regarding SOC and when to run on grid can easily be setup.

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kalito avatar image
kalito answered ·

@DennisAWD and @shaneyake what of in instances where ESS is not possible like in 19xx series inverters? Oddly Victron deprecated Hub Assistants in preference of ESS which is not supported in old microprocessor inverters. I have been using ESS on a Multi II and works like a charm but I have an application on a Multi I with old micro

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shaneyake avatar image shaneyake commented ·
You can use the Cerbo or CCGX relay via Generator control to trigger ignore AC using virtual switch on those older units or using assistants.
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