question

dl1oli avatar image
dl1oli asked

Multiplus 48/30003/35-50 charge voltage to high for pylontech 2000C

Hi,

I have an Multiplus 48/3000 connected with a Pylontech 2000C, Cerbro GX and mppt 150-35.

Everything is connected to the Cerbro. The chargeing with the Mppt workes fine. If I connect the AC in with the grid, then I get Overvoltage warning for the Pylontech at the Cerbro Gx.

In the settings for the multiplus in the Cerbro GX are no settings for the voltage of the battery.


Best regards Oli

Multiplus-IIPylontech
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3 Answers
Jack Peters avatar image
Jack Peters answered ·

Please ensure that you have updated all the Victron product firmware and programmed all the devies as recommended in the integration document. https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

If there is still an issue, the batteries may require balancing.

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dl1oli avatar image
dl1oli answered ·

Thank you, I checked the firmware, The Mppt has the newest Version, the Cerbro too.

But the Multiplus has onlx Version 159 and not 469 as requiered.

I need to order an mk3 Usb adapter to update the Multiplus.

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dl1oli avatar image
dl1oli answered ·

I can not update my 1920 Multiplus 48/3000/35-50 to Version 469 because of the old microprocessor. So I set the minimum DC voltage and max. charger voltage manualy with VE config.Now charging from the grid works fine.

I updated to Version 1920209 which assistants are available for 209 ?

Best Regards

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