su 3 inverter ho avuto 52,29 e il quarto 52,20 e mi ha dato l'errore 71 poi contatta l'azienda da dove li ho acquistati e mi hanno inviato il firmware 52,29, mi hanno detto che se il firmware non è lo stesso non va in parallelo, quindi devo modificare 52,29 ma solo un inverter, quello che uso con l'energia eolica, puoi modificare 52,29 con tensioni da 200 a 260 ?

I don't have the original 52.31 firmware to put them on the other inverters

help guys, no one can modify the firmware 52.29 with the voltages of the ranger mppt starting from 200v to 260v ? coffee guaranteed for your inconvenience, thanks in advance

12 hours ago, bubu_bubu said:

no one can modify the firmware 52.29 with the voltages of the ranger mppt starting from 200v to 260v ?

The pool of available patchers is rather limited 🙂 

This is patched firmware version 252.29 for the Infini V II 5kW Twin with '2809 DSP. It is patched for a minimum MPPT voltage of 200 V, and a maximum of 260 V, as requested by @bubu_bubu, for his wind generator. Do not use with any other model of inverter, certainly none of the Axpert series. Axperts are off-grid; this is an on-grid model capable of grid tie operation.

Apart from the MPPT voltage limits, the only other patches are for the version number (should report as 252.29 from monitoring software, though probably 52.29 from the display of the inverter), and the premature float bug is fixed.

Use at your own risk.

dsp 252.29 wind - Patched.zip

thanks, I'll try it and let you know how it behaves, then I can leave it connected in parallel with the other inverters, thanks Coulombo and send me the link with the coffee ☕️ as usual you are number one

On 2023/05/27 at 6:05 PM, bubu_bubu said:

send me the link with the coffee ☕️

It's in my signature. 🍵

Edit: Which you may not see if you're using a phone to view this forum, so here is the link:

Buy me a coffee if you appreciate my work.

Edited May 29, 20233 yr by Coulomb

Hi @Coulomb

I just encountered on your latest MAX 7.2 v245.11 the 90V bug:

I unplugged the PV1 panels and had the inverter running on only the PV2.

It is raining today, and ~250W was coming in (on a ~1900W series of panels).

But various times the PV2 got stuck on 90V.

When swapping the panels to PV1 they started to charge with ~250W again.

Let's see if it happens on PV1 too....

see image below: the low line is 90V, upper line ~250V.
PV current during the 90V dips was ~0,1A., PV Power during the dips ~15W

 

Edited May 27, 20233 yr by birdibird

hmmm:

 

4 hours ago, birdibird said:

hmmm:

At least MPPT1 is probably doing what it should, it seems to me. It hung on with 250 V until the current fell to a very low value. At very low light, it IS appropriate to keep the voltage low; otherwise you might miss detecting some current that would be able to be found at a lower voltage. I can't see the scale for the current, but when the voltage was dragged down to 90 V, the current was low enough to be on the bottom of the graph. If you can't get more current than that at 90 V, going to 250 V isn't going to give you much more power.

As for MPPT2, it should have the same code as MPPT1 in 245.11, and you didn't show the current. It's probably doing the same thing.

250 W is still a useful amount of power, though it's not clear what the power level was when it transitioned from 250 V down to 90 V. I see that the patch notes talk about Georg's version changing the current from 0.50 A to 0.05 A. I've since realised that the units of current are actually tenths of an amp, not hundredths, so Georg was actually changing from 5.0 to 0.5. I thought that 0.05 A was too low, and changed it to what I thought was 0.10 A, but it's actually 1.0 A. So there is plenty of room to reduce that threshold figure. Maybe I should reduce one to 0.5 A (same as Georg's), and the other to say 0.2 A, to see if it works even better in bad light conditions.

It's unfortunate that the current is (from unreliable memory) reported in whole amps, and I don't know if it's panel amps or battery amps. I'm guessing battery amps from your report of 250 W, with the current graph at 5 "units" at the start (19:20). If it is battery amps, then 0.5 A is only about 25 W, and it's probably not worth trying to hang on below that power level.

I've just determined that the  main firmware version 45.62 is slightly more advanced than 45.11. It's called a PIP-6548 firmware, which is a split phase model for the North American market. But the firmware, unlike most MAX firmwares, handles two models, the split phase and the normal single output model. Which model it assumes depends in the voltage at an input.

There is also a '28066 version, 69.62. So if there are any '28066 Max 7.2 kW models, there is a recent update firmware for you too.

Available from https://www.mppsolar.com/v3/lv6548-fw-update/ . [ Edit: the page is dated May 2023, so it could well be that this is the latest firmware available for the 7.2 kW MAX models. ]

@birdibird, would you be interested in a patched version of 45.62 (dsp.hex dated 23-Nov-2022, compared to 45.11's 22-Aug-2022) that halves the current threshold from 1.0 to 0.5 amps? Recall that 245.11, which I thought I was reducing to 0.10 A, was actually reducing only to 1.0 A.

But if you don't feel comfortable using this firmware released for another purpose, or you don't feel that 0.5 A is a significantly better threshold than 1.0 A, then I won't bother.

Edited May 28, 20233 yr by Coulomb

Hello, Two weeks ago I installed my Easun 8kw. Unfortunately, it turned out that there is a problem - when there is sun and the battery is charged, the inverter goes to sleep and draws only current from the grid, although there is enough power from the panels and the battery is charged. I have to restart the inverter, for das it is ok. From what I read, it turned out that there is a similar software problem with other such inverters.
The version of the inverter is 72.xx and I replaced it with 72.66 as indicated here - https://www.mppsolar.com/v3/8048maxmppt/ but the problem remained. Anyone else having this problem and were you able to resolve it?
 

19 hours ago, Mihluzin87 said:

The version of the inverter is 72.xx and I replaced it with 72.66 as indicated here -

Despite that page being created in March 2023, there are two later firmwares both with version number 72.68. The one that I judge to be the better one is attached. It may fix the problem; please let us know.

MAX8K_DSP_7268.7z

hi guys!
 

with the help of Coulomb and Georg594 I succeeded and upgraded my Easun 8kw inverter from version 46.08 to 90.09 of 280v and it works fff well, both in the morning and in the evening, when it is no longer "stuck" in 90v... to this version worked with Reflash, I tried with Arena and it doesn't work, it can't open the port... Seeing that I managed to upgrade it with my inverter, I also tried with another Easun inverter of 8 kw but with version 72.03 to 92.05 and it also works fine, but this time it didn't work with Reflash but with Arena .

I thank you very very much!!!

You are some special people!

I will try to do honor with a coffee by donation.

Thank you again!

i have an easun 8kw (recognised as axpert Max) with 46.05 firmware, which firmware i can try?

Howdy! any of them, which suit you depending on the voice and how many panels you have installed... I chose 90.09 because I have a string of 20 Canadian panels... 410v voice on a string of 10...

Use at your own risk!!!

Edited June 6, 20232 yr by Murariu

to be more sure, carefully read this post by Coulomb…

 be careful because you will lose the warranty if it is under warranty....

https://powerforum.co.za/topic/15880-axpert-chipset-chatter/

On 2023/06/06 at 6:03 AM, ross68 said:

i have an easun 8kw (recognised as axpert Max) with 46.05 firmware, which firmware i can try?

You could even try factory firmware version 46.71, available via this post. One user had an extra 1:45 (1¾ hours) of uncrippled solar charging from that firmware, if that's what he was running (see the second post after the above linked post).

Edited June 7, 20232 yr by Coulomb

salut dragi prieteni! dupa 2 luni de teste cu noua versiune 90.09 a lui Georg594, pentru care nu am cuvinte sa-i multumesc pentru ca productia a fost grozava, astazi am observat cu surprindere pe graficul pv ca productia a scazut undeva intre 10 si 20 si apoi- a revenit, ce s-a intamplat ? tensiunea era pe panourile pe ambele fluxuri, doar puterea era de 0.1 Ah... o explicatie va rog? tensiunea de la retea era de 230 V si sunt deconectat de la retea. mulțumesc!
 

 

Edited July 20, 20232 yr by Murariu

Good evening! It was an error in the application, I checked the application on the watchpower laptop and it is OK. At 10:20 there was a drop in production because very thick clouds came.

 

 

 

 

Edited July 20, 20232 yr by Murariu

I'm confused. It looks to me that the PV voltage is dipping to zero, as well as the PV current, but I can't tell because many of the labels are missing from the graph.

If the PV voltage is going to zero, that sounds like a problem with PV wiring.

Please tell us what the various colours mean, what you mean by 10-20 (hours? percent?), etc.

On 2023/05/27 at 6:58 AM, Coulomb said:

The pool of available patchers is rather limited 🙂 

This is patched firmware version 252.29 for the Infini V II 5kW Twin with '2809 DSP. It is patched for a minimum MPPT voltage of 200 V, and a maximum of 260 V, as requested by @bubu_bubu, for his wind generator. Do not use with any other model of inverter, certainly none of the Axpert series. Axperts are off-grid; this is an on-grid model capable of grid tie operation.

Apart from the MPPT voltage limits, the only other patches are for the version number (should report as 252.29 from monitoring software, though probably 52.29 from the display of the inverter), and the premature float bug is fixed.

Use at your own risk.

dsp 252.29 wind - Patched.zip 1.61 MB · 5 downloads

Hi Coulomb,

Thank you very much for all the effort you've put in over the years, modifying and making firmware available. Would it be at all possible to modify the factory Infinisolar firmware in the quote above, to just have the premature float bug fixed and no other mods such as the MPPT voltage range changes included?

Thanks!

3 hours ago, Orcish75 said:

Would it be at all possible to modify the factory Infinisolar firmware

It might be possible, but I have to draw the line somewhere, so I'll not touch Infini firmware. It starts getting so far from what I'm familiar with and able to test that it becomes too dangerous. By which I mean the chances of bricking an inverter become unacceptably non-negligible. Sorry!

17 hours ago, Coulomb said:

It might be possible, but I have to draw the line somewhere, so I'll not touch Infini firmware. It starts getting so far from what I'm familiar with and able to test that it becomes too dangerous. By which I mean the chances of bricking an inverter become unacceptably non-negligible. Sorry!

Hi Coulomb,

No problem, I understand. I'll install the factory firmware you provided and check if it solved the float bug.

Thanks.

16 hours ago, Orcish75 said:

I'll install the factory firmware you provided and check if it solved the float bug.

It won't, sadly.

Edited August 10, 20232 yr by Coulomb

Have a 11kw max 1 with the 90v issue, has 73.63 U1 flashed it to the 291.70 which fixed the 90v, but now sits at 100w all day so the battery doesn’t get charged, if I turn the inverter off and disconnect battery and solar then reconnect it will start charging fine. 
Anyone else had this issue.
Always had poor Solar performance as well compared to my 5kw inverter (can disconnect 11kw connect 5kw inverter and will easily double the solar input. 
11kw max sticker