29 minutes ago, add1c7ed55 said:

U want to flash it today ? Pls come back with feedback after that. U can update with that reflash tool in the archive? I couldnt.

Dont know why.

 

Don't attempt to flash a 90.xx version, until it's proof that there is a way .

2 minutes ago, Georg594 said:

Nu încercați să flashizați o versiune 90.xx până când nu este dovada că există o cale .

This is the question...the person in the last posts, said that flashed 90.06 and worked...it must work to me too cause i have the same inverter...am i right ?

 

What voltage i must have? 280v min is.ok for me too? 

On 2022/10/18 at 12:42 AM, add1c7ed55 said:

And the inverter of the person upstairs, that is easun smw8k..the same with mine...why is compatible?

Maybe the following is what happened.

You complained to your supplier, they forwarded your problem to Voltronic, and an engineer was assigned to the bug. But that engineer wasn't the usual one for Max firmware, or something. This engineer does things a little differently; he uses the Arena reflash tool (no idea why, maybe they all will use this tool in future). [ Edit: He also compiles the firmware in optimised mode; the original engineer didn't enable optimisation. ] The reflash tool could sure do with a little polish (e.g. "Update sucess!" (sic)). BUT ALSO, and I have no idea why, he uses source code that is actually intended for a different Axpert Max model, which has a different upload command. I can't see how you ended up with the wrong reflash command, but maybe there was an intermediate firmware that had the old reflash tool and the new reflash command. Now you are stuck with the new reflash command, so you have to continue using the new reflash tool. The fact that the hex file has a name like VP5.INV strongly suggests that this reflash tool is actually designed for some sort of VM model, not a MAX model. I assume that this was an honest mistake on the part of this engineer.

[ Edit: Arrgh! I thought I found all these. I no longer recommend the following renaming. It's really confusing how some inverters seem to need the Arena reflash tool and one type of firmware, and others need the old reflash tool and different firmware. ]

Here is my suggestion. Make a copy of one of your folders with the new Arena reflash tool, and name it appropriately so you know it's experimental. Delete or rename the VP5.inv file. Download Georg's original firmware, unzip it, and copy it or rename it to dsp.hex. Run the Arena reflash tool in that new folder, and that should restore your firmware to normal, so that you can use standard firmwares (factory or patched). You will then no longer be able to use the Arena reflash tool.

I had assumed all along that the 91.04 and 92.04 firmwares were official Voltronic firmwares for general use. But it looks like these were compiled specifically to address your problem, and were meant to be experimental in nature, and not for wide distribution.

This seems to fit the facts, unless others can say that they have 91.04 or 92.04 in their inverters from the factory, or supplied to them.

[ Edit: took -> tool ]

Edited October 28, 20223 yr by Coulomb

Ask yourself why flash tool doesn't get connected.

Maybe the manufacturer is just stopping you to brick your device.

 

 

By the way 

This is from my device 

2 minutes ago, Georg594 said:

Maybe the manufacturer is just stopping you to brick your device.

Yes, that's the intention. But if as I suggest the engineer got it wrong, then it's in effect "part bricked" now (locked to the Arena reflash took, and using what I'm assuming is the non-standard reflash command).

I'll agree it's quite the mess.

Edit: it's only just clicked with me that the VP5K.inv file name should have been a clue all along.

Edited October 17, 20223 yr by Coulomb

Actually, "VP5K.INV" suggests an Axpert VP model, which is actually a PWM model. These are typically 80* V max PV voltage models that connect the panels directly across the battery. Obviously, that's a vastly different model to an Axpert MAX 8kW with a 450 V max PV solar charger.

That might be why I can't find any other reflash tool using this file name for the hex file. PWM models are rare, especially these days when the push is very much towards higher voltage strings and maximum power point tracking.

Axpert VP models are mentioned in this small PDF brochure: https://voltronicpower.com/content/download/Brochure/Axpert_V(PF1)_DS.pdf

[ Edit: "a MAX" → "an Axpert MAX 8kW" ]

* Actually, 55 / 80 / 105 V max for 12 / 24 / 48 V nominal battery voltages.

Edited October 17, 20223 yr by Coulomb

26 minutes ago, Coulomb said:

Poate că următorul lucru s-a întâmplat.

Te-ai plâns furnizorului tău, ei au transmis problema ta către Voltronic și un inginer a fost desemnat pentru defecțiune. Dar acel inginer nu era cel obișnuit pentru firmware-ul Max sau ceva de genul ăsta. Acest inginer face lucrurile puțin diferit; el folosește instrumentul de reflash Arena (nu știu de ce, poate că toți vor folosi acest instrument în viitor). [ Edit: Compilează și firmware-ul în modul optimizat; inginerul original nu a activat optimizarea. ] Instrumentul de reflash ar putea cu siguranță să folosească puțină lustruire (de exemplu, „Actualizare reușită!” (sic)). DAR, DE asemenea, și nu am idee de ce, el folosește cod sursă care este de fapt destinat unui alt model Axpert Max, care are o comandă de încărcare diferită. Nu văd cum ați ajuns cu o comandă de reflash greșită, dar poate a existat un firmware intermediar care avea vechiul instrument de reflash și noua comandă de reflash. Acum ați rămas blocat cu noua comandă de reflash, așa că trebuie să continuați să utilizați noul instrument de reflash. Faptul că fișierul hex are un nume precum VP5.INV sugerează cu tărie că acest instrument de reflash este de fapt conceput pentru un fel de model VM, nu pentru un model MAX. Presupun că aceasta a fost o greșeală sinceră din partea acestui inginer.

Iată sugestia mea. Faceți o copie a unuia dintre folderele dvs. cu noul instrument de reflash Arena și denumiți-l corespunzător, astfel încât să știți că este experimental. Ștergeți sau redenumiți fișierul VP5.inv. Descărcați firmware-ul original al lui Georg, dezarhivați-l și copiați-l sau redenumiți-l în dsp.hex. Rulați instrumentul de reflash Arena în acel folder nou, iar acesta ar trebui să vă restaureze firmware-ul la normal, astfel încât să puteți utiliza firmware-uri standard (din fabrică sau corecţionat). Atunci nu veți mai putea folosi instrumentul de reflash Arena.

Am presupus tot timpul că firmware-urile 91.04 și 92.04 erau firmware-uri oficiale Voltronic pentru uz general. Dar se pare că acestea au fost compilate special pentru a rezolva problema dvs. și au fost menite să fie de natură experimentală și nu pentru o distribuție largă.

Acest lucru pare să se potrivească cu faptele, cu excepția cazului în care alții pot spune că au 91.04 sau 92.04 în invertoarele lor din fabrică sau le-au fost furnizate.

[ Editare: a luat -> instrument ]

Your suggestion is good, but a friend makes this with a mppsolar 8048max, and bricked it, you know the case i guess .

 

I couldnt use the reflash tool from the beginning, only firmwares with arena i could use. Now the same, how i can solve this problem to.can flash the firmware that george made?

Good evening.
So the firmware from Georg594 is flashed and the inverter works fine.
The voltage value on the south-eastern string PV1 was around 300V for a long time and the current slowly decreased. At the end of the day, when the current reached almost zero, the voltage dropped to about 100V.

In one sentence, PV1 kept producing until the last moment. I have never had such a smooth end of day production.

I will continue to test it in the scope of my free time.

Georg594 thank you again for your help and your time.

I see you use smart phones for monitoring inverters.

However, it can also be done via PC.
You open this page: www.dessmonitor.com , log in with the same username and password like in the application and that's it.

 

57 minutes ago, biondiba said:

Good evening.
So the firmware from Georg594 is flashed and the inverter works fine.
The voltage value on the south-eastern string PV1 was around 300V for a long time and the current slowly decreased. At the end of the day, when the current reached almost zero, the voltage dropped to about 100V.

In one sentence, PV1 kept producing until the last moment. I have never had such a smooth end of day production.

I will continue to test it in the scope of my free time.

Georg594 thank you again for your help and your time.

super. Can tell me which version have u flashed? 100v / 200v or 280 v minimum ? 

2. With which tool have u flashed ? arena or reflashxtool series ? 

thanks

6 hours ago, add1c7ed55 said:

super. Can tell me which version have u flashed? 100v / 200v or 280 v minimum ? 

2. With which tool have u flashed ? arena or reflashxtool series ? 

thanks

Hi.

Version 90.09, 280V. With reflashxtool. I spend 12 minutes with it. After that I flashed display unit firmware to.(12.21)

 

Edited October 18, 20223 yr by biondiba

1 hour ago, biondiba said:

Hi.

Version 90.09, 280V. With reflashxtool. I spend 12 minutes with it. After that I flashed display unit firmware to.(12.21)

 

But why u flashed the display too ?

Can we talk in private or on whatsapp to show me the procedure pls ?

Thanks

55 minutes ago, add1c7ed55 said:

But why u flashed the display too ?

Can we talk in private or on whatsapp to show me the procedure pls ?

Thanks

It was not necessary to flash display unit.

Attached firmware update procedure.

Firmware Upgrade SOP via RS232.docx

 

On 2022/10/18 at 1:42 AM, add1c7ed55 said:

I couldn't use the reflash tool from the beginning, only firmwares with arena i could use.

I have no idea why you need the Arena flash tool and Biondiba does not. You both seem to have Axpert MAX 8kW inverters. [ Edit: It was later concluded that the Arena flash tool and 1xx.xx main firmware version numbers are used with the '28066 processor; standard reflash tool and xx.xx main firmware version numbers are used with the '2809 processor. ]

So it seems you need a modified version of 92.04 firmware. I've taken Georg's changes and applied them to 92.04. It should identify as 92.05. This is the 200 V minimum MPPT voltage version. I can fairly easily change that to 100V or whatever other value. 

I have no way of testing this, so use at your own risk. But I'm very confident that it will have the same effects as Georg's patches to 90.06.

Though I have to say that I don't really understand completely how Georg's changes work. 

There was one change that I could not implement, because that code simply doesn't exist in 92.04. Hopefully, it's not a critical one. If it turns out that it is critical, it can be implemented with a larger patch. But I'm 99% sure this won't be necessary.

Naturally, I'll be very interested to hear what happens.

Edit: This patched firmware is essentially obsoleted by patched firmware version 92.06, which has a better-named zip file, and  fixes the premature float bug as well.

 

MAX_8K_28066_9204 patched.zip

Edited November 8, 20232 yr by Coulomb

Following this topic closely as i have an MppSolar pip 11kw that suffers from the same problem. The current firmware ver is 73.02 and 112.14 on display. Managed to get mpp to send me a newer firmware after weeks of going back and forth but I don’t think will solve the main issue so I didn’t bothered updating to that : 91.70 and comes with arena flasher.

any chance to have a look at this version and see if can be possible to raise to 200v mppt ?

 

Thanks

Max_HV_11k 91.70.7z

This is great to see how one step come to another.

 

@Coulomb great work 😀

 

 

 

Hello. Here is voltage graph with flashed version 90.09 280V. I don't know why but the Voltage is quite high at the beginning. Maybe 280V is to much. In any case, I will wait for cloudy and rainy weather.

George594, please can you explain us something about your sentence: "And under this the MPPT reduce the voltage in every calculation of 20v until it's again at 90v what is the lower limit. In this code sequence i reduce the subtraction value of 20 to zero"

I dont understad why zero.

I have a feeling that after your firmware modification, the voltage increases, but the MPPT does not try to "load" the panels. Why was the tension so high in the morning? Look at the attached graph.

Maybe a look in the datasheet of PV moduls will bring us more information.

Just have a look at the performance curve in correlation to sun power .....when you look there you will see voltage and MPPT point is always relative high

If you think mppt logic is surging not enough current open your PV string and Check idle voltage....dont do it under higher power levels.... dangerous DC sparks will occur.

 

Mppt calculates voltage X current= power ...and it plays with the voltage to archive maximum power .

 

Look at my Trina tsm graph

Maximum power is always at nearly the same voltage......

 

@Coulomb

I think the original code to reduce mppt voltage when current is below a limit is to archive if one or two modules get shade to pull down the voltage until the bypass diodes will get active and so the other modules can bring full power.....

 

But the code is so bad that there is no check if this routine makes it more worse .....

 

On professional Inverter it's shade management and really highly complex 

 

Maybe we can bring back this function but with intelligent logic 

I thing that now its more clear for me.

Did you try to set incement for example 2V instead of 20V? (not zero)

What will happen?

Bellow is curves of my solar panels. I didnt find P-V curves, only I-V curves.

5 hours ago, Coulomb said:

Nu am idee de ce aveți nevoie de instrumentul Arena flash, iar Biondiba nu. Se pare că amândoi aveți invertoare Axpert MAX 8kW.

Deci se pare că aveți nevoie de o versiune modificată a firmware-ului 92.04. Am luat modificările lui Georg și le-am aplicat la 92.04. Ar trebui să se identifice ca 92.05. Aceasta este versiunea cu tensiune MPPT minimă de 200 V. Pot schimba destul de ușor asta la 100V sau orice altă valoare. 

Nu am cum să testez acest lucru, așa că utilizați pe propriul risc. Dar sunt foarte încrezător că va avea aceleași efecte ca patch-urile lui Georg la 90.06.

Deși trebuie să spun că nu înțeleg complet cum funcționează schimbările lui Georg. 

A existat o schimbare pe care nu am putut-o implementa, deoarece acel cod pur și simplu nu există în 92.04. Să sperăm că nu este una critică. Dacă se dovedește că este critic, poate fi implementat cu un patch mai mare. Dar sunt 99% sigur că acest lucru nu va fi necesar.

Desigur, voi fi foarte interesat să aud ce se întâmplă.

 

MAX_8K_28066_9204 patched.zip 1,42 MB · 1 descărcareuu

Thanks for your time. Pls tell me what voltage i must have minimum in the firmware, george said its better much, u made now 200v, he made a version with 280v. I must tell u i have 9pv of 450w on pv1 and the same on pv2...430voc. 

Can make the version withtout that f90 error active ?

On 2022/10/18 at 8:34 PM, biondiba said:

Hello. Here is voltage graph with flashed version 90.09 280V. I don't know why but the Voltage is quite high at the beginning. Maybe 280V is to much. In any case, I will wait for cloudy and rainy weather.

George594, please can you explain us something about your sentence: "And under this the MPPT reduce the voltage in every calculation of 20v until it's again at 90v what is the lower limit. In this code sequence i reduce the subtraction value of 20 to zero"

I dont understad why zero.

I have a feeling that after your firmware modification, the voltage increases, but the MPPT does not try to "load" the panels. Why was the tension so high in the morning? Look at the attached graph.

How it works ?

On 2022/10/19 at 2:39 AM, Oakyz said:

any chance to have a look at this version and see if can be possible to raise to 200v mppt ?

Sure. It uses exactly the same code to control the MPPT, as far as I've looked to this point.

So it would be the same effort to patch.

I'd rather wait to see how it works on the 8kW model before doing the 1-2 hours work to patch this one.

@add1c7ed55, are you ready to try my patched 8kW firmware?

Edit: The fact that MPPSolar provided another Arena reflash tool firmware lends credence to the theory that at least these days, EASun is a legitimate (non-clone) reseller, and that future firmwares will possibly all use this reflash tool.

Edited October 20, 20223 yr by Coulomb

1 hour ago, Coulomb said:

Sigur. Utilizează exact același cod pentru a controla MPPT-ul, din câte am văzut până în acest punct.

Deci ar fi același efort de a patch.

Mai degrabă aș aștepta să văd cum funcționează pe modelul de 8kW înainte de a lucra de 1-2 ore pentru a-l repara pe acesta.

@add1c7ed55, sunteți gata să încercați firmware-ul meu de 8 kW patch-at?

Editare: Faptul că MPPSolar a furnizat un alt firmware pentru instrumentul de reflash Arena dă credință teoriei conform căreia, cel puțin în zilele noastre, EASun este un reseller legitim (non-clon) și că firmware-urile viitoare vor folosi probabil toate acest instrument de reflash.

Yes, i want to use your patch. But i just want to ask u, its not be ok for me bigger voltage ? 

7 hours ago, add1c7ed55 said:

But i just want to ask u, its not be ok for me bigger voltage ? 

I believe that too high a voltage will compromise shade performance.

It's possible that 120 V (the lowest MPPT voltage for older models, tested for years and years) may be best.