JDAVIES94

Mines mppsolar but I believe they're basically the same. But yes mine acts exactly the same. There only 3 months old. But firmware version is 73.07

I'm using 64kwh of lf280k 2 x 2p16s with 2 seperate BMS I will check but I think they're both set higher

Hello My inverters won't charge the batteries at more than 100a each 200a combined even with the max charge rate set to 150a. There seems to be some sort of hard limit they won't go past no matter what. Solar panels will produce more power if building demand goes higher so I know there's more capacity to charge but it just won't draw over 100a from the panels

H̶a̶v̶e̶ a̶l̶s̶o̶ d̶i̶s̶c̶o̶v̶e̶r̶e̶d̶ t̶h̶a̶t̶ t̶h̶i̶s̶ f̶a̶u̶l̶t̶ o̶n̶l̶y̶ h̶a̶p̶p̶e̶n̶s̶ w̶h̶e̶n̶ t̶h̶e̶r̶e̶'s̶ n̶o̶ s̶o̶l̶a̶r̶ This was incorrect I must have just fluked a couple of times I have however found out: Inverter one in single mode set to sbu with grid switched on has really unstable current draw from the battery however if I turn grid off it goes very stable. Inverter two in single mode set to sbu is extremely stable no matter grid position. Please see videos showing this https://photos.app.goo.gl/6q1UgCzXPgCEi9758

I have an issue now my system is all commissioned where one inverter throws a f60 and the other throws an f08 sometimes other faults. This only happens when switching the grid on to inverter one (left inverter) What's strange is I had this system working as far as I could tell on a previous battery (only 3kw) but only using sub mode while waiting for the main battery to arrive. Now with my new battery (64kw) I'm unable to have the system fully running without throwing the above fault codes. The only way I can get the system to run is switching grid off to inverter one. With everything else connected/on it works. As soon as I switch on grid to inverter one it trips. Please see video of what happens here: https://photos.app.goo.gl/tGYDiB2pFky5EhhPA Regards, Jeran

Basically as per the title, my loads arnt perfectly split down the middle so ideally parallel would suit me better however are there many benefits to running them separately besides transfer time? Inverters as 2 x 11kw max's

The colours have changed because I've moved my strings around so the shaded panel only effects 6 panels instead of 9

Bit of a weird thing I've realised. When one of my strings becomes shaded they both drop off before one recovers but jumps up and down on volts and Amps The first photo is what is what I would expect and the the other two are the issue I'm referring to

No Problems, Any one on here willing to share their label and firmware from factory. Ideally MPP Solar Branded. for an 8kw

I have contacted them regarding a fixed firmware for the 8kw would either @Coulomb@Georg594 be able to send me a photo of your label and firmware it shipped with, Ideally a photo? And I shall try get a fixed Firmware for yours too

I'm really happy with this latest firmware update still not perfect but it's massively better than the shipped firmware. Anyway these fixes could be ported to the other inverters? @Coulomb @Georg594

Not sure on the 7.2 I'm afraid

What model inverter do you have? 8kw 11kw? Removable display?

Based on what I've witnessed over the past couple cloudy days I would consider this 95% fixed. It still sits at around 100v longer than I would say is perfect. However it does get going much quicker without missing out on too much power. I would say that over the course of the day I'm loosing no more than 2-300wh. Not sure if this fix can be translated into the 8kw model but that is beyond my scope of knowledge.

No, the update I supplied is for the 11kw max 1 ONLY

Hello columb the older firmware 57.60 the only difference I found is that it would stick at 115v instead of 90v which it did on the original firmware it was shipped with. After looking at it for a couple days although I think it may be a little too early to tell still it does seem much improved. It stayed at 100v until midday yesterday but it was extremely dark and miserable. Besides there was only 0.5a so not a huge amount to gain. Once the sun did start to come out it shot up to around 290v and stayed there pretty much without fault for a few hours until the sun started leave my panels. See photo 1 Today, bit of odd behaviour on mppt1 regarding amps comparing it to mppt2 but I shall continue to monitor and get back, like I said a bit too early to judge. Photo 2

After moaning that the firmware previously sent didn't fix the issue it just moved the voltage up to 115v they have now sent me another version 57.61. Please see attached. I will get back in a few days with how it responds THIS UPDATE IS FOR THE 11KW Max 1 (with removable display) ONLY. DO NOT USE ON 8KW MODEL Reflash.zip

Ahh yes I have re-read and makes more sense now

Hi coloumb, are there.many cases of this inverter getting stuck at high voltage then? I seem to read that it's main low mppt voltages

Right I'm just spit balling here so correct me if I'm wrong. I think that possibly looking at the "minimum voltage" and adjusting that could be the wrong way to look at fixing this. After watching this all morning I have found that it will stay at 115v-120v until exactly the point it hits 3a after this it seems to want to keep 3a or more so increases the voltage SLOWLY until it sits at 3a. This behaviour I think would be fine on newer panels with a short circuit of 10a+. But with my older panels with a short circuit of around 7a in ideal conditions could very quickly drop below 3a with indirect sunlight....I suspect. So potentially lowering the amperage at which it "releases" to something older panels can easily output shorted. Any thoughts on this? I could be way off.

I know can you imagine if they'd shipped a product with fully functioning mppt Tracking 🤣 would be unheard of

So finally had some overcast all day after updating to the firmware supplied by Vera at mpp and it doesn't seem to be sticking at 90v now but 115v. It also does seem to be releasing more frequently but it may not be an apples to apples test. Still a little disappointing though

Finally got a response with the attached zip file. The initial zip suggests that they've sent 57.60 for me to flash to. Haven't tested yet as I don't want to then be locked to the modern flasher. Also not sure if this fixes the issue as of yet. Should I flash? I've removed the step by step as this took me over the 3mb limit. Reflash.zip

Its the max1 with the removable display. Best way to go about checking the processor? I have contacted the supplier and they have given me an email at mpp solar. As soon as I have a response (hopefully with firmware) I'll let you know

It's an 11kw max. Apparently its straight out the factory as they weren't in stock when I originally ordered.