NeilFer

Hi @Supergeek Okey thanks, so you also have the same protocol that I am running at the moment, have you ever checked to see if the inverter charges the battery after you discharged it for a while ? Say one load shedding cycle and then the inverter should charge the battery again when the grid comes back on, if you can just check if that does happen that would be great as well as when does the charging start ? at a certain voltage or a SOC% ? I have played around with all the settings but the inverter only starts charging once and then never again. I did not do any firmware upgrades on the inverter, I am not even sure where to check my current version but I did see where to download new ones on the app.

Hi @Supergeek Thanks for the reply, do you have comms with your Lux inverter with Canbus ? Did you do any firmware upgrade on your inverter ?

The Inverter does not have Canbus, it says it has canbus in the manual but we contacted the company that manufactures all the Axpert inverters like Mecer, RCT, Kodak and they said it does not support CANbus only RS485

Hi I am new on this site but have found a lot of valuable information over my time working with different inverters and developing a bms board. I would appreciate if someone can help me with the Luxpower SNA5000 WPV model. It has a lot of settings and it looks like a very modern, well thought through inverter with a lot of different options. It has an option to select Lithium batteries and after you select Li-batt you can then choose which brand you are using, it has 4 dedicated options according to the manual - 0 Standard Battery, 2 Pylon Battery, 6 Luxpower protocol Battery, 8 Dyness Battery. That is all good and well but the thing is I can put it on 2 for pylon, 0 for standard or 8 for dyness and it communicates with my bms, but it does not want to charge the battery ? I have set the Luxpower Ac charge time start to 00:00 and end time to 23:59 so that it can always charge from the grid, then I see that when my battery SOC is below 90% when I turn on the Luxpower inverter, it will start to charge immediately and I have control over the charge current which I send over canbus as well as the SOC values. When the SOC% reaches 100% the inverter stops to charge, that is great well done, but when the SOC% lowers to <90 it should then start to charge again right ? Well it does not ? Why not ? The SOC can even be lower than 15% then the inverter will turn off the AC output but it will still not start to charge. If I switch off the luxpower with the on off switch, and then back on again, I can see the canbus communication is there right away between my bms and inverter and it will say for example 78% and will start to charge immediately, but when it reaches 100% it stops and never starts again, no matter how far the SOC% lowers. I can set the inverter to charge from AC according to the battery Voltage as well but it does not look like it reacts according to voltage. It does exactly the same cycle as when it is set to charge according to battery SOC? Has anyone experienced this before ? Please help ? I need to be able to charge the battery according to voltage or SOC for more than just once