6 hours ago, riogrande75 said:

So I had a first look inside the inverters and recognized a TMS320F2809 main DSP and a VTC6 slave/display cpu.

With respect to the display CPU, the line above is the significant one, i.e.GD32F105, or just the brand, GigaDevice.

6 hours ago, riogrande75 said:

Right now I'm running rather old FW 46.06/122.12. Also the 90V issue seems to affect me.

@Coulomb Do you have a patched firmware for me as well?

Since yours is an Axpert Max 1 8kW with the '2809 processor, you should be able to use patched versions of 90.06, already published.

Your display firmware, 122.12, has a new major firmware number (122) that I've not seen before. The confusion continues! Fortunately, you should not need to update your display firmware. Usually I see 12.xx or 112.xx. Dyslexia on the part of the engineer??

Ok, thx for your analysis.
So you suppose that my device is internally a Axpert MAX 1 and not a MAX II that I bought actually. Regardless of the case and the round display, right?
If I look at the serial# I totally agree 🥲

Is it "safe" to install the 90.06 fw? I mean if I run into troubles, do you have the 46.05 fw (or a patched version) that allows me to get back to current state?
I'm not that experienced with the axperts so far, but as long as I install a FW that was produced for this type of processor, the inverter should at least boot up and I should be able to flash another fw.
Am I right?

14 minutes ago, riogrande75 said:

So you suppose that my device is internally a Axpert MAX 1 and not a MAX II that I bought actually. Regardless of the case and the round display, right?

Wait, this is actually an Axpert Max II with the round non-removable display?

I based my assumptions on my notes that 46.xx is an Axpert Max 1 firmware. I suppose it's possible that Max 1 and Max 2 firmware could be the same, with all the differences handled in the display firmware. But so far it seems that they firmwares are always different.

16 minutes ago, riogrande75 said:

If I look at the serial# I totally agree 🥲

Sorry, what is it about the serial number that makes you say that? My notes say that some Max serial numbers start with 9293, others with 9634. Most (not all) of the 7.2 kW modes use 9293, many of the Max II models use 9634. So unfortunately, the first few digits of the serial number can't distinguish.

The only difference that I know of between a Max 1 and a Max II is the display, and maybe some nuances of the LED ring versus the LED bar. So if you have a round display and it works, by definition you have a Max II.

21 minutes ago, riogrande75 said:

Is it "safe" to install the 90.06 fw? I mean if I run into troubles, do you have the 46.05 fw (or a patched version) that allows me to get back to current state?

No, I don't have a 46.xx to fall back to. So in that sense, it is not safe.

22 minutes ago, riogrande75 said:

I'm not that experienced with the axperts so far, but as long as I install a FW that was produced for this type of processor, the inverter should at least boot up and I should be able to flash another fw.

Short answer: yes. But there are ways it can go bad.

By far the safest way is to complain to your supplier, and suggest that a firmware update would get you off his back. Of course, that's often a really slow and painful way.

Ok, thx for your answers.

Regarding serial: As posted before, my device pop's up as 9293211116xxx in watchpower (guess this is the real serial) and has a sticker with 92342209xxx on it (fake).
So I consider it is more a MAX I "inside", even sticker says MAX II and the round display would state that too. Charging current (display config parameter 2) can be set to 120A max and not 150A, the main reason I decided for a MAX II.
Nevertheless, the QMN command (Query model name) answers MKS2-8000. As I expect this string comes from the firmware that was installed, I'd better not try to flash a 46.05 fimware from a MAX 1 inverter.

So I better stuck on 46.05 for now, even with "bad performance" these days, unless the right FW files are available somewhere.

One more thing that bothers me:
The pv production counters get updated every full hour only (commands QET, QED). This makes logging very inaccurate and does not allow "nice curves".
Is this a device specific issue only, or do all Axpert's behave like that?

2 hours ago, riogrande75 said:

Nevertheless, the QMN command (Query model name) answers MKS2-8000. As I expect this string comes from the firmware that was installed, I'd better not try to flash a 46.05 firmware from a MAX 1 inverter.

The QMN response comes from the display firmware, based on what responses (if any) it gets from QMN and QGMN commands. QMN is a weird command that only seems to be implemented in VM series main firmwares. So I would not put much store on that response.

2 hours ago, riogrande75 said:

One more thing that bothers me:
The pv production counters get updated every full hour only (commands QET, QED). This makes logging very inaccurate and does not allow "nice curves".
Is this a device specific issue only, or do all Axpert's behave like that?

I'd have to go check, but I suspect that all Axperts behave like that. A quick check didn't lead to an answer.

8 hours ago, riogrande75 said:

Ok, thx a válaszokat.

Ami a sorozatot illeti: Amint azt korábban közzétettük, a készülékem 9293211116xxx órajelként jelenik meg (gondolom, ez az igazi sorozat), és van rajta egy matrica a 92342209xxx számmal (hamis).
Szóval szerintem inkább egy MAX I "belül", még a matricán is MAX II és a kerek kijelző is ezt írná. A töltőáramot (2. kijelző konfig paraméter) max 120A-re lehet állítani és nem 150A-re, amiért a MAX II mellett döntöttem.
Ennek ellenére a QMN parancs (a lekérdezési modell neve) az MKS2-8000 választ ad . Mivel azt várom, hogy ez a karakterlánc a telepített firmware-től származik, jobb, ha nem próbálok meg egy 46.05-ös firmware-t flash 1-es inverterről flashelni.

Szóval jobb, ha mostanság "rossz teljesítmény" mellett is maradok a 46.05-nél, hacsak nem elérhetőek valahol a megfelelő FW fájlok.

Még egy dolog, ami zavar:
A pv-termelés számlálói csak teljes óránként frissülnek (QET, QED parancsok). Ez nagyon pontatlanná teszi a naplózást, és nem tesz lehetővé "szép íveket".
Ez csak készülékspecifikus probléma, vagy az összes Axpert így viselkedik?

My axpert max II 8k also updates production data every hour. Also on the inverter and the watchpower application.
Now I'm trying to find some sensible data collection solution.

Hello I have a max 2 expert with version U15401 and U22208, I would like to know if it is possible to upgrade to version 81.05. The production date is 2021 with a serial number starting with "92932107...."

 

 Thank you for your answers

Edited December 19, 20223 yr by bandit-17

19 hours ago, bandit-17 said:

I have a max 2 Axpert

There are 4 models fitting that description (7.2, 8, 10, and 11 kW), and there are two variants of each of these ('2809 processor, and '28066 processor). I assume that you have an 8 kW Max II.

I would NOT attempt to mix 54.xx (which you have now) and 81.xx. I only have 81.04 and 81.05 for the 8 kW MAX IIs, so I can't be certain, but my strong guess is that these two are for the different processor variants.

You'll need to get 54.05 (or whatever is the latest in that series) for your chip variant.

All these different and incompatible firmwares is a nightmare.

Just for the MAX series, there is 1 versus II, the two chip variants, and the 4 power levels. That's a total of 16 different main firmwares! Then there are the MKS IVs, which look like the MKS IVs and the Infini V IV (but are all very different), and older models like the MKS II and III, King and King II, both standard and rack mounted, there are still many VM IIIs about. Then there are all the display firmwares (removable and non, two chipsets there as well)... Plus the MKS 1s (three variants). And other Infinis.

And now there are twin and dual variants, there are the 120 V models...

Sorry, rant over.

Edited December 20, 20223 yr by Coulomb

On 2022/11/18 at 7:02 PM, riogrande75 said:

I finally received my first so called "Axpert MAX II 8000" (ordered 2) from a chineese dealer at alibaba.
Unfortunately the build quality is worse then poor. Attached one pic. that tells most of it. 😒

The device looks like a Axpert MAX 2 and it's even mentioned on the type label, but it says 80A max charge, which should be 150A according to voltronic.
Serial 96342209... looks ok to me, production date sept. 2022 - brand new.

Then I connected Watchpower, next surprise: Real serial# seems to be 929321116.. - so more like Axper MKS from 2021, right?
Installed FW is 46.05 (main) and 122.12.

I'm not yet familiar with with Axpert/PIP firmware: What firmware can I install to this device?
Infinisolar's cannot be destroyed by flashing a wrong fw - it can always flashed again, even if the device does not respond after a wrong fw.
Is this statement true for Axpert's as well?

 

Hi can u tell me the chineese dealer that u bought from ? Its Foshian Ouyad ? I want to buy too...and i need to know is.this or not.

Don't buy anything from Foshian Ouyad, even they offer the best price!!!
I heard of many voltronic axpert/infini clones of worst quality from them. No support, no chance on return or for new FW!

I asked my seller I am on version 54.61 now for the axpert 8kva max II

Edited February 27, 20233 yr by bandit-17

5 hours ago, riogrande75 said:

Nu cumpărați nimic de la Foshian Ouyad, chiar și ei oferă cel mai bun preț!!!
Am auzit de multe clone voltronic axpert/infini de cea mai proasta calitate de la ei. Fără asistență, fără șansă la întoarcere sau pentru noul FW!

Have u bought something from Foshian? Or where u know this from ?

2 hours ago, bandit-17 said:

I asked my seller I am on version 54.61 now for the axpert 8kva max II

U where bought axpert max 2 from ?

7 hours ago, add1c7ed55 said:

Où avez-vous acheté axpert max 2 ?

WATTUNEED in Belgium

Yes, I made that mistake 🥶.
Beside the poor built quality the devices arrived damaged, seller refused to refund - Alibaba had to settle debt.

1 hour ago, riogrande75 said:

Da, am făcut acea greșeală 🥶.
Pe lângă calitatea proastă construită, dispozitivele au ajuns deteriorate, vânzătorul a refuzat să ramburseze - Alibaba a trebuit să plătească datoria.

How much paid to u alibaba ?

Hello masters.
I need advice!
I use my Axpert MAX II inverter in SBU mode. But the grid input of the inverter is switched off. Because if there is a network input, it supplies the internal power supply from the network at night. If there is no network, it supplies the internal power supply from a battery.
There's nothing wrong with that in the summer. But in winter it happens that the battery runs down and switches to line mode.
I would like to connect a relay and control it with the dry contact.
I have attached the wiring and the operation of the dry contact.
According to the 12 program, it switches to line mode and tightens the dry conductor.
But what happens if there is no network input? Does the dry contact turn on? Because I think that if there is no network, the inverter does not switch to line mode but switches off based on program 29, which is the Low DC cut-off voltage.
But if the dry contact turns on based on the 12 program, which connects the inverter to the network via a relay, does it switch from SBU mode to line mode?
Does what I want work?

1 hour ago, Rozsda said:

Hello masters.
I need advice!
I use my Axpert MAX II inverter in SBU mode. But the grid input of the inverter is switched off. Because if there is a network input, it supplies the internal power supply from the network at night. If there is no network, it supplies the internal power supply from a battery.
There's nothing wrong with that in the summer. But in winter it happens that the battery runs down and switches to line mode.
I would like to connect a relay and control it with the dry contact.
I have attached the wiring and the operation of the dry contact.
According to the 12 program, it switches to line mode and tightens the dry conductor.
But what happens if there is no network input? Does the dry contact turn on? Because I think that if there is no network, the inverter does not switch to line mode but switches off based on program 29, which is the Low DC cut-off voltage.
But if the dry contact turns on based on the 12 program, which connects the inverter to the network via a relay, does it switch from SBU mode to line mode?
Does what I want work?

AFAIK the inverter will only switch to grid when reaching a low battery level. If you look at the table you you will with the relay switch to grid the moment you reach the alarm level. 

Unless I missed something it would seem as if the relay does what the inverter will also do without the relay while in SBU mode. 

Once you reach cut out either will switch the inverter off. 

Edited June 24, 20233 yr by Scorp007

It should work. The  dry contact is designed basically for starting a generator, so it won't require AC to be present on the AC input.

I have a Max II 10kW bought from Italy. It has performed well apart from 3 issues:

1. I can't get it to reliably charge at 150amp. Some nights it will, others it only does 100amp. I've assumed it is heat related but can't prove it - providing better ventilation does not seem to change the behaviour.

2. The time keeping is poor, losing about 8 minutes a day. Since I'm using it to charge batteries on a cheap overnight tariff this means I need to update the time each evening.

3. It draws about 70W from the mains during the day when it is in SBU mode. This is 1.4kWh per day for the 20 hours of peak rate, or about 60p/day or £219/year. Not the end of the world but annoying - I can spend that money far better than the electricity company. I can disconnect the mains in the morning and reconnect in the evening, but life is too short already.

Apart from those issues, the unit is performing really well. with 20kWh of Pylontech batteries I estimate the arrangement is saving me over £1,600 per year.

2 hours ago, Mugwanya said:

I have a Max II 10kW bought from Italy. It has performed well apart from 3 issues:

1. I can't get it to reliably charge at 150amp. Some nights it will, others it only does 100amp. I've assumed it is heat related but can't prove it - providing better ventilation does not seem to change the behaviour.

2. The time keeping is poor, losing about 8 minutes a day. Since I'm using it to charge batteries on a cheap overnight tariff this means I need to update the time each evening.

3. It draws about 70W from the mains during the day when it is in SBU mode. This is 1.4kWh per day for the 20 hours of peak rate, or about 60p/day or £219/year. Not the end of the world but annoying - I can spend that money far better than the electricity company. I can disconnect the mains in the morning and reconnect in the evening, but life is too short already.

Apart from those issues, the unit is performing really well. with 20kWh of Pylontech batteries I estimate the arrangement is saving me over £1,600 per year.

hello,

1- I've never gone up to 150A under load

2- I have no problems with keeping .

 3 - yes it draws on the network when there is more solar, I cut the arrival so that it takes on the battery

for the temperature I use home assistant with the rs232 serial link.

On 24/06/2023 at 18:28, Scorp007 said:

AFAIK, l'onduleur ne basculera sur le réseau que lorsqu'il atteindra un niveau de batterie faible. Si vous regardez le tableau, vous serez avec le commutateur de relais sur la grille au moment où vous atteignez le niveau d'alarme. 

À moins que j'aie manqué quelque chose, il semblerait que le relais fasse ce que l'onduleur fera également sans le relais en mode SBU. 

Une fois que vous atteignez la coupure, l'un ou l'autre éteindra l'onduleur. 

in SUB mode, the inverter takes between 50 and 70W from the grid as soon as there is no more solar.  Even if the battery is charged and present.

I Have  Mercer 8KW inverter. I have had an F90 fault in the past 9 months. The technician at Mustek South Africa said that the control board was replaced, each time i had the ubit repaired. The control board has this number on it: RMA#2212009 31-550718-03G-CPCBA CNTL/AXPERT MAX II/VOL 8KVA 230V W/O COMM CE. What would be the cause of the F90 fault? It stops working once it displays this fault on the LED screen.

On 2023. 06. 25. at 8:09, Coulomb said:

Működnie kell. A száraz érintkezőt alapvetően generátor indítására tervezték, így nem lesz szükség AC bemenetre.

It works!
The battery didn't run down all summer and I couldn't try it.
But recently there have been days when the battery died and the dry contact connected the mains and then the inverter switched to line mode.
Another question. Has anyone disconnected the power supply line between the MAX 2 auxiliary power supply and mppt??? What are the disadvantages of disconnecting it?