dapsaille wrote: ↑
Sun, 23 Dec 2018, 05:31
i've just received my first inverter and i want to flash your moddded firmware as i will use pylontech lifepo4 battery (for now i use a 7s4p 18650 DIY micro power wall).
Um, 7S is about 26 V, this is a nominal 48 V inverter. I'll assume for now that you meant 14S. It's hard to believe that the display would even come on with 26 V.
Here is a picture of my inverter, the main cpu version seems to be 72.70 but i cannot get the secondary on the display.
You appear to have a clone, not a genuine Voltronic Power model. The font seems a little off, and they've used the cent symbol instead of the Greek letter phi (for "phase", as in "1 phase"). [ Edit: it also appears to be missing the "date stamp" sticker over the nearest mounting screw to the barcode sticker. That's always present in a genuine model. ] Does your barcode start with 9293? That seems to indicate a Voltronic Power 4 kW model. There is a small chance that because it's a non-genuine clone, it can't be updated with genuine (including patched) firmware.
Maybe we need a FAQ for the SCC version display. If you don't have PV panels connected, or they are isolated (switched off), or it's night time, you won't see the U2 (Solar Charge Controller firmware version) display. The SCC only gets its power from the PV input, not the battery or mains.
I use a know working serial to usb cable with windows 10 64 i will try with a windows xp but i don't have a secondary computer for now to test.
Did you already encountered this behavior ?
It's not uncommon to have problems with certain models of USB to serial adapter. It can be "known working" yet not work reliably for firmware flashing. It could be worth trying another model. Trying Windows XP might work, as it would then be using another device driver, which might work better.
See this post
to check if you already have the "known works for flashing" USB to Serial adapter.
[ Edit: reworded sentence with "small chance". ]
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.