Cerbo Relay 2 + SolarEdge analog power reduction

Hi

I need help with the of relay 2 which is available min. from vrm to control the switching off of SolarEdge inverter. it so happens that i have two PV inverters: Fronius on AC out2 and SolarEdge on AC IN.SE I would like to turn off when there are negative energy prices to not give back to the grid. I made a cable that on the cerbo side I put in NC GND contacts and on the SE side L1 V. Clicking on VRM relay 2 unfortunately does not turn off the SE. Maybe something needs to be set in the software settings on the inverter itself. please help.

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pwfarnell commented · Jul 13 at 07:39 AM

This is a Victron forum so we can not help on the settings for the Solaredge PV inverters unless someone has direct experience.

One thing you might like to check is the Cerbo relays are volt free dry contacts, meaning they are only a switch. Does the terminal on the PV inverter need a +12V or 0V signal to work or should it work with dry contacts., If it does need a signal voltage then you need to pick up a 12V or 0V supply.

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Fideri pwfarnell commented · Jul 13 at 09:16 AM

@bogut

You might need to also check that the Cerbo relay closes/opens as expected. I know that it clicks, but that's not evidence enough of functioning normally.

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