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jejochen asked

Making net tied Pv inverter work with ESS on AC disconnect

System: 3x 5 kVa multiplus II in 3 phase, 2 current meters, 48 V lifepo4 battery, batrium BMS

I tested the system today, i flipped the main switch to disconnect from the grid. The appliences kept running, but while i thought the PV inverter would remain running, it switched off. I guess it has something to do with sync or so? Please some advise. It is not a must, but would love to keep this running in case of net failure...

Multiplus-IIESS
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Guy Stewart (Victron Community Manager) avatar image Guy Stewart (Victron Community Manager) ♦♦ commented ·

AC PV inverters are supported, but require some configuration and proper system design to work correctly.

The first step is to read this AC PV document - https://www.victronenergy.com/live/ac_coupling:start

Do you have a system wiring diagram?

Who set the system up and did the configuration for the AC PV inverter?

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