JapieSkapie

Hi, I've got a Growatt 5000 ES, with 4 x PylonTech US3000Cs on the same firmware version as you. Just checked and my setting 2 is 100A. That said, I upgraded the firmware because my Solar charge was limited to 3000W on the 04 firmware on my 8 x 540W JA solar panels. After the upgrade I got 3500W coming in. Now, about 3 months later, I'm back to only getting 3000W max. No ideas to help you. Just sharing my experience.

Eventually got this working today. Added another battery hoping the newer battery would resolve the issues we experienced on getting BMS to work (it didn't). Using the same configuration of 0010 on dip switches with the CAN cable and protocol 52 seemed to work, but the inverter loses comms after about 15 - 20 minutes. Got it working via the RS485 cable (meant for the older growatt inverters) that came with the battery on the RS485 port via protocol 1. Dip switches set to 0110. Hope this helps somebody.

It was provided by the installer. But I'm in Gauteng. I heard the rules are a bit different in Cape Town.

You may be right. My batteries are usually fully charged before I reach a consistent high solar throughput. Up until that point it climbs up to 3.5kW. I only see the 3.8kW when it is cloudy and the throughput is intermittent. I assumed it was because it was later in the day. I'm still learning...😉

Could be completely unrelated, but my solar input was limited to 3000W on my 8 x 540W JA solar panels, until I upgraded the firmware on the inverter. Now I'm getting up to 3800W. Just an option to consider. On the Growatt 5000 ES.

The reset that you are referring to is to reset the settings, not the firmware. I asked the Growatt support guy whether this is necessary after flashing (as I read somewhere) and he said restarting the inverter is all that is needed.

Glad you got it flashed and thanks for posting how you got it resolved. Is your inverter now working correctly again and your firmware version showing correctly?

Unfortunately, I'm no expert when it comes to these things. Flashing the firmware was extremely stressful. I don't have any further advice. Hopefully someone else on here can assist. What is your inverter showing as its current firmware after flashing? Are you getting any error messages that indicates that it is failing?

Yes, I disconnected everything else (grid, solar, house), and left only the batteries connected as normal. I also switched off the house DB to make sure nothing is connected and that input and output on inverter shows 0. After doing that, i could flash with no issues, other than the head ache I developed from listening to the constant beeping.

There are two. As I understand it, the one is for the inverter and the other one for the MPPT. You need to flash both, one at a time.

I can't comment on the US2000s, as I have US3000Cs, but the max charge rate is being set by die battery's BMS. I added two more batteries today and could charge them at 2500+W on the new firmware.

It is in the.rar file, which you will see once you unrar it. It works the same as a zip file.

I used winrar, but I'm sure you can use any other took that can open .rar files.

Did you ever get this resolved? I'm trying to help someone get their dyness battery talking to the Growatt 5000 ES via BMS. After configuring it, all looks fine, but then randomly trips and recovers until switching it back to US2 settings. This is using 0010 on dip switches, via CAN cable, protocol 52.

Sent.