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josh-xerogrid asked

Programmed AC Out 2 for dump load but it uses the grid

Currently we have a 3-ph system that is parallel to the grid. Utilising the AC IN as the in and out.

I was able to use node red and the relay in the Cerbo to close the AC Out 2 relay when the batteries reached 90% (acting as a dump load). This worked and if it were an off grid system would work great. However, this system is grid connected and when AC Out 2 closes its relay, rather than using the solar/batteries it uses the grid to supply the load.

I looked for any sort of command or control that could ignore the grid when batteries get to 90% but was unsuccessful.

Does anyone know what control or command I may need to use to prevent the grid from being used to supply this load?screenshot-159.png

Here is the AC Out 2 relay control I have used

Node-REDgrid parallel
screenshot-159.png (64.1 KiB)
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