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helge-1 asked

Older Multiplus with firmware 1802143 low voltage disconnect

I came accross an older Multiplus 12/2500/120A for cheap and could not resist. Now looking to see if I can integrate it into a planned LiFEPO4 build. I can control the charge current easy enough with the DIP switch on the PCB, but have not found a way to raise the low voltage disconnect on the inverter side. The manual says 9V LVD and that will probably hurt my LiFePO cells. So.. Any ideas on what to do? Is this unit capable with VE.Can or VE.Direct? (It has a single RJ45 socket labeled "remote")

MultiPlus Quattro Inverter Charger
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Matthias Lange - DE answered ·

You can try to use a MK2 or MK2.2b Interface and VE.config.

ASS030130010 or ASS030120210

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helge-1 answered ·

Thanks. I was unsure if VE.config would work with such an old firmware - But will try. Thanks!

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·

I'm not 100% sure but VE.config 3 should be compatible with with everything newer than 17XXXXX.

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