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@CoulombCould I have damaged or shorted the bms in the inverter and/or battery by trying different sequences to try get the bms to work? Or could I have damaged or shorted the bms in the inverter and/or battery by mistakenly touching cables together whilst trying different sequences to try get the bms to work? Or can the bms get damaged or shorted in anyway as I still keep getting error 61?

Thanks @Coulomb, I have tried everything but still keep getting error 61. I have swopped and tried different pin out sequences but no luck 😔

I have it set at 1-0-0-0 I plugged it in the same way as the video above. I have it set to PYL Yes I left it and came back but it was still giving error 61. Do you know if any of the pin outs on the battery are supposed to give a voltage?

Hi @Coulomb, thank you for the information. I updated the display to 22.20 and it was successful and now shows 22.20 on the display. The only issue is that my BMS is still not working and I am getting error 61. The cable is fine and I checked continuity on the cables using the same pin out as in the video. Any idea why I am still getting this error? Another thing is that from the inverter the pin 3 and 5 both show a voltage, whereas the batter pin 7 and 8 does not.

Thank you for much. Does the 8kw and the 10 kW use the same remote panel firmware? So I can use the link you provided (ie: I can use the second link in the picture below for my 8kW)?

I am unable to locate the download for this firmware and I don't want to click the incorrect firmware. Please can you assist.

Hi @Coulomb thank you for your reply. I have attached below both a picture of the display screen as well as the Watchtower app showing the firmware at 22.08. It says 22.08 but can you please confirm this. IMG_0766.heic Will this still work for my 8 kW or should I not try?

Hi everyone I refer to the video below. I am trying to set up my BMS, however, keep getting error 61. I was working for a couple months but I see that this error is back. In the video he mentions the firmware version, does anyone know where I can get this version from and how to update it. The Model number is: RCT - AXMX2 - 8K48V. The versions are: Main CPU: 54.01 and Secondary CPU: 22.08. Thank you.

Yes, this is the correct one. Thanks! Yes, I have search everywhere and cannot find it either. I hope they release it to the public soon. Thanks @Coulomb. It is quite similar to the previous module. I just have to wait for the firmware. If you manage to find it in the future, please let me know.

My new inverter finally arrived. The Model number is: RCT - AXMX2 - 8K48V. It seems to be the closest to this one: http://www.mppsolar.com/manual/U-GK%2C U-MS/U-MS series user manual.pdf, however, they are not 100% the same. There are slight differences. Does anyone know where I can get the latest firmwares for this inverter. The current firmwares are: Main CPU: 54.01 Secondary CPU: 22.08 Also, how do you upgrade the firmware on one of these inverters? Thanks.

Thanks @Coulomb I will do that and let you know how it goes.

The company that I purchased the inverter from said they will exchange my inverter for the RCT Axpert MAX 2 8K48V (https://www.sustainable.co.za/products/rct-axpert-max-2-8k48v-8kva-8kw-48v-hybrid-inverter?_pos=1&_sid=c032a7496&_ss=r). Does anyone have the latest manual for this inverter? Also, how can I factory reset my current inverter (the VMIII)? Basically wipe all data off it?

Thanks @Coulomb.

https://www.mppsolar.com/manual/PIP-MK (PF1.0)/PIP-MK manual-20190717.pdf

Do you know of anyway to make my system take more watts? Like adding something else?