Hi Community
I have built a test wall where we can expand how an ESS system works, and so we can optimize it for customers.
It all runs with parameters and solar panels, charging and discharging, and feeding into the grid.
But on our 3-phase system, it flashes Low battery on L1. I have 26 volts up in the inverter. What could be the cause of this error? and why is it only on L1. It is only when my solar panels deliver less than 80w.
Hi do you have a battery connected? How is the solar connected (mppt)?
Are you sure that no fuses have blown which prevent that multi from using the battery?
Yes. Batteries connected.
Mppt as solar connection
No fuse blown.
The fault is only when PV delivers less then 80W
Are your cables big enough? Is the battery charged enough? Did you apply ve configure settings in all multis?
Hej Marc.
Cabels are big enough. It’s a system there always charged til minimum 80%. Yes i did, with gridcods and assistens.
My problem is its not making sens, that its only one of the phases.
And there are no faults to se on ther Cerbo. As it would userly show if ther was a low battery
Have you checked this with a multimeter? Also under load?
I would suggest you swap two around and see if the problem moves or stays.
Good idea!
