23 hours ago, sugar0 said:

FW's: Main CPU 72.03

You should be able to use patched firmware version 272.66. It's one of my simpler patches; I do a bit more work with later patches, but it should still be a good improvement.

 

I will try for sure asap! In regard of updating with USB with the usb drive could this works?

I alrady have a spare one. Otherwise i have a Female USB-A to microusb that *supposedly* is an OTG cable. But i can't count on that. What are the risks not having anOTG cable? Simply not able to flash the firmware?

 

Thanks again 

Edited October 24, 20232 yr by sugar0

10 hours ago, sugar0 said:

What are the risks not having anOTG cable? Simply not able to flash the firmware?

Yes, you'll get one of the three Unn (e.g. U02) warnings, no harm done. 

On 2023/10/25 at 6:10 AM, Coulomb said:

Yes, you'll get one of the three Unn (e.g. U02) warnings, no harm done. 

Hello @Coulomb, i tried twice with usb OTG method and all seemed to work since the first led on the left was bleeping for 15 minutes and then went back to the main display but in the display panel i still got 72.03.

The only oddity is that after returning back to the main (after it supposedly flashed the fw) no button worked and i needed to reboot the inverter. after that the inverter is working ok but still no fw update

Edited October 27, 20232 yr by sugar0

On 2023/10/28 at 1:53 AM, sugar0 said:

all seemed to work since the first led on the left was bleeping for 15 minutes and then went back to the main display but in the display panel i still got 72.03.

That's expected; the display has room for 3 digits on each line, but only shows 2. Check with Watchpower (PC or app) or any other monitoring software for the full version number.

5 hours ago, Coulomb said:

That's expected; the display has room for 3 digits on each line, but only shows 2. Check with Watchpower (PC or app) or any other monitoring software for the full version number.

Just bought the serial cable from amazon and i can confirm that i'm still on 72.03. Since i have the cable now i try the serial method.

hi Colombo, I tried both the first version and also the second one you gave me and the 235v works perfectly but the 250v is always 235v. loaded the firmware with 250v but it is always 235v the mppt always starts at 235v, either I did something wrong or the inverter doesn't want to start from the 250v voltage, thanks

anyway now that I'm doing the tests there's very little wind maybe that's why tomorrow should be strong winds, let's see tomorrow

10 hours ago, bubu_bubu said:

but the 250v is always 235v. loaded the firmware with 250v but it is always 235v the mppt always starts at 235v, either I did something wrong... 

Did you follow the instructions in the text file for copying and renaming files? This is unfortunately necessary with the older reflash tool, which is needed for '2809 processors like yours. You can also check the entire version number with monitoring software. I'm guessing that you are running the same firmware, which with the older reflash tool is always read from the file named dsp.hex. 

It's also possible that I screwed up and all the hex files are identical. I'll go check later. 

dsp_552.29patched250v-300v.hex I renamed this one dsp.hex the others 200v,235v I took them out of the list, and right like this

20 minutes ago, bubu_bubu said:

I renamed this one dsp.hex

Did you delete the original dsp.hex first? You can't have two files with the same name in the same folder / directory.

Yes, I deleted it

On 2023/10/29 at 7:17 AM, sugar0 said:

Just bought the serial cable from amazon and i can confirm that i'm still on 72.03. Since i have the cable now i try the serial method.

Hello, i indeed correctly updated from 72.03 to 272.66 and i noticed an improvement yesterday morning with the voltage ramp. There were 4 panels with 38VOC x410w mounted but in the afternoon i added another 4 panels in series and i can tell that the max production was not really great. It's not easy to tell from the graph because there was not much light. maybe the max voltage is limited on one of the two mppt? i resemble reading something like that in the thread.

The actual configuration is this:

MPPT1: 3300w 38VOC 8sx410w

MPPT2: 3300w 38VOC 2p6s275w(used)

 

In the graph you can see where i added the 2 last panels around 12:10 and another 2 at 14:15ish. the light was not great but maybe evenly bad. No sun but nether really dark. What do you think @Coulomb?

something funny is happening to the mppts now i think

Edited October 30, 20232 yr by sugar0

11 hours ago, sugar0 said:

something funny is happening to the mppts now i think

That is a bit strange. Was it particularly cloudy in that "noisy" period? Someone operating an iron perhaps?

Edit: The test seems OK; in the afternoon it went down to 90 V when the power was already down to about 20 W.

Edited October 31, 20232 yr by Coulomb

5 hours ago, Coulomb said:

That is a bit strange. Was it particularly cloudy in that "noisy" period? Someone operating an iron perhaps?

Edit: The test seems OK; in the afternoon it went down to 90 V when the power was already down to about 20 W.

Nope, no big load was on the inverter at that point.

Later in the day there will be sun and i will see how the South mppt perform. there's is no way that in Autumn 3300wp(used 275w) pointed esat at 18° tilt will outperform the new 3300wp facing south at 80° tilt. The sun is really low now, remember i'm at the northern emisphere in Italy 😀. do you agree? What max Voltage should i except in both the mppts? Thanks

hi Coulombo, can you make me a separate firmware with the voltage 250v to 300v, I tried the ones you made for me and they are 235v, thanks

On 2023/11/01 at 2:48 AM, bubu_bubu said:

can you make me a separate firmware with the voltage 250v to 300v,

I've checked it again; it should be right. For other readers: this is a special firmware version for use with a particular wind turbine; it's unlikely to be useful with solar panels.

Patched firmware version 552.31 Infini V II wind 250-300V.zip

Hi Coulomb

Congratulations, you are doing a great job

Axpert Max E 8kW 28066
I have tested all FW

SUB and USB mode
Unfortunately, feeding into the grid

Dessmonitor even when switched off, it delivers 50-200W to the grid

When switched on, all solar panels go to the grid (4kW PV output)

 

 

Grid feeding  

The electric company fines me

 

Edited November 2, 20232 yr by Tomeek

11 hours ago, Tomeek said:

When switched on, all solar panels go to the grid (4kW PV output)

Maybe i'm missing something here but why you want to enable it? just disable.

In my case that feature is even disabled. it fails when i press "Read"

Edited November 3, 20232 yr by sugar0

hi Colombo, and perfect 250v thanks, I'm waiting for a stronger wind to see how it behaves

2 hours ago, sugar0 said:

Maybe i'm missing something here but why you want to enable it? just disable.

In my case that feature is even disabled. it fails when i press "Read"

The function is switched off, but still 50-60W feed to the grid 😞

1 hour ago, Tomeek said:

The function is switched off, but still 50-60W feed to the grid 😞

What firmware are you currently on? How do you measure the power feed to grid?

15 hours ago, Tomeek said:

SUB and USB mode

My understanding, from when I last looked into this, is that feeding to the grid should only happen in SUB mode, not USB mode. Though maybe it's only SBU mode where you can't get grid feed-in.

You may be stuck with having to use SBU output source priority. As you can see, the feed into the grid is fairly small (about 200 W max most of the time), and the higher power feed-in is only for a short period of time as the control system adapts to a sudden increase in available solar power. It seems to be a limitation of the fairly poor control systems that Voltronic use. I suspect that Voltronic considers the amount of energy pushed back into the grid to be negligible. Unfortunately, your utility doesn't seem to agree.

It's unfortunate, of course, as you'll use more battery energy with SBU.

Edited November 3, 20232 yr by Coulomb

2 hours ago, Tomeek said:

The function is switched off, but still 50-60W feed to the grid 😞

Hello

For my case, the inverter connected to utility in battery power consumes 50W/h to operate when the panels no longer provide the charge.

I had to install an automatic circuit breaker that turns off the power supply to the inverter when the batteries reach 52v and engages it at 50v.