Since I upgraded yesterday I noticed the surplus of Solaredge PV gets exported to the grid, I would like to store this in my battery.
I think there might be a bug in 1.30.
If anybody knows a fix, or how to downgrade (I have created a victron professional account), but I am totally lost in the folder and filename mess that seems to exist there.
Until version 1.29 the battery was able to charge and discharge with 15-17 kW maximum. The battery is able to do 600A charge/discharge the system reports:
Request charging: NO
Charge current limit: 480A
Discharge current limit: 510A
It just seems to totally ignores charging from the solar edge inverter. If I put it in “Keep batteries charged”, the battery starts charging with 17kW
I will try downgrading first, thanks to your help I found the version of the file.
If you switch the Multi RS to ‘off’ and then back to ‘on’, it starts working again at 1.30. I discovered this issue when I switched it to ‘pass-through’ and then to ‘on’—I encountered the same problem you did. Once the inverters were switched from ‘off’ to ‘on’, the system started charging again. I believe this only affects three-phase systems; the changelog actually mentioned an adjustment regarding this. I put also it on the forum. I think it is an hidden feature.
I tried this, I upgraded to 1.30 again, switched to passthrough, waited a while, switched back to on.
And I still have the same issue, there is something really wrong with version 1.30. I am downgrading again to version 1.29.
I have experienced the exact same behaviour after upgrading to 1.30. For me, the L3 inverter (3-phase setup) was exporting excess (AC-coupled) PV power to the grid while L1 and L2 were charging the battery. The difference between L3 and L1+L2 in my setup is that L3 has no MPPTs active, while the inverters for L1 and L2 do have their MPPTs active.
After downgrading, the problem disappeared as well.
I have tried all methods with firmware 1.30. In the three-phase setup, it goes wrong when you switch to pass-through and then back to on. Then it doesn’t charge to the battery. I disconnected everything and tried every phase with 1.30, but the no problem occurred with only one fase. Only with an 3 fase solution. If I switch to pass-through and then back to on, it doesn’t charge. It only starts charging again if I switch it to the off position and then back to on. If I manage to get it charging again, I have the problem the next day; it won’t charge again without being set to pass-through. Now back on version 1.29, there is absolutely no problem anymore; it works as I expected.
I updated the RS multi’s to the last firmware version 1.31 and the problem is solved. The battery charge is now ok. From pass-through to on the multi rs now directly charging the battery from the solar.
The Setup: 3× Multi RS Solar 48/6000 fw 1.31 (or 1.30) in three-phase configuration, Cerbo GX, AC-coupled 8.0kWp PV inverter, grid measurement via VM-3P75CT. DESS with grid trade mode.
On 1.29 this works correctly. On both 1.30 and 1.31, the units are unable to match wattage across all three phases: loads on two phases are compensated by their respective inverters, but the third phase is not taken into account at all and is drawn from the grid. The actual inverter/phase that is lagging appears to be the one with the largest load. I suspect this is the same regression in the reworked internal power calculations mentioned in the 1.30 changelog.
I did test the off→on workaround mentioned above; no difference.
Reverting to 1.29 again, this is unwanted behaviour — the system buys from the grid during expensive hours.
