after Greeting , i have problem at Axpert max 8kw non-Twin, we face error f90 and i try to use USB with AxpertSetSN to reconfigure the firmware for the device

and it give me "setting faild" and when i use serial by using ReflashTool_Xseries software but it tell me too "serial port open"

so what can i do?

please i wait your reply

i want to Add video for my device when i try to use flash 

https://drive.google.com/file/d/1iYwK_7-ucIsyO807CgRjjVKUOsWAzMhJ/view?usp=sharing

Softwares i use but i faild too  

 

Edited December 8, 20241 yr by Ahmed2024

@Coulomb @Ahmad_k @Georg594  @Enrico nc @Peter Sam @Steve87 

What can i do in this situation ?

 

On 2024/12/08 at 7:48 PM, Ahmed2024 said:

i want to Add video for my device when i try to use flash 

So you're getting U03 error code; that means "Document inside the USB disk with wrong format."

As far as I know, the USB stick has to be empty with just one hex file on it, and it must be called "dsp.hex" without the quotes. I don't know how the USB stick should be formatted (NTFS, FAT32, etc). Perhaps others who have succeeded can say.

Be very careful that you have the right firmware update file; I've just realised that using the USB stick method bypasses the "sanity check" for the right kind of firmware (e.g. Kings get a different firmware to others, 2806x processors have their own, etc). In particular, the early Axpert Max E 8kW models had a lot of 90.xx firmwares. Voltronic seem to have stopped using this series, as they were a mix of wildly different models with no pattern. 90.45 might be for a totally different model than 90.46 as a contrived example.

Edited December 10, 20241 yr by Coulomb

 

I take photo for the inverter control panel, under white sticker no any number 

Edited December 12, 20241 yr by Ahmed2024

15 hours ago, Ahmed2024 said:

under white sticker no any number 

I'm sure that there would be; it's hard to see unless you get the exact right angle.

But it doesn't matter; 46.05 on the white sticker indicates that it's a '2809, so the 890.06 patched firmware that I PMd you should fix the problem. Get a suitable USB to RS-232 cable in conjunction with the cable that came with your inverter, or make your own (see this post from the upload instructions).

For what it's worth, that control board does look genuine. I wonder why so many fault code 90s are coming up in error?

On 2024/12/13 at 5:01 AM, Coulomb said:

But it doesn't matter; 46.05 on the white sticker indicates that it's a '2809, so the 890.06 patched firmware that I PMd you should fix the problem. Get a suitable USB to RS-232 cable in conjunction with the cable that came with your inverter, or make your own (see this post from the upload instructions).

 

Thanks a lot i will try that, But can you tell me how to connect rs232 directly to this kit where i can connect (Rx, Tx, GND) and which socket i can connect them directly (1,2,3,4,5,6)?.

and also i want to ask about is it recommended to add battery in (B) at picture for protect control board to lose its configuration ?

14 hours ago, Ahmed2024 said:

But can you tell me how to connect rs232 directly to this kit where i can connect (Rx, Tx, GND) and which socket i can connect them directly (1,2,3,4,5,6)?.

Hmmm.  I'd say that the connector marked with a red 3 (CN6) is the one you want. In a 5 kVA inverter like mine, that connects to a board like this to convert it to isolated RS-232. The comms board on models with a removable or round display is quite different, but the pinout could well be the same. From this AEVA post:

So this isn't even "TTL", but you can probably adapt it with a simple circuit. I believe that you can determine the polarity by noting that idle = dark. What is marked TX above (transmitting from DSP to outside world) likely has 3.3 V behind it, something like the right side of this:

 

 

14 hours ago, Ahmed2024 said:

i want to ask about is it recommended to add battery in (B) at picture for protect control board to lose its configuration ?

I've never seen that populated. It's possibly for a supercapacitor, but if so there would have to be additional components for limiting the supercapacitor's voltage, and these may not be present. Sorry, you are in uncharted waters here (as far as I know at least).

On 2024/12/16 at 7:00 PM, Coulomb said:

I've never seen that populated. It's possibly for a supercapacitor,

It might be the same supercapacitor that is found in some display boards, like the gold/yellow one below from an Axpert Max II:

I also thought about what the place for the accumulator is for. One thing comes to mind. There should be a real-time clock chip PFC 8563T and all the rest of the harness there. But all this is already on the display.

On 2024/12/17 at 7:26 PM, YRIIY said:

I also thought about what the place for the accumulator is for. One thing comes to mind. There should be a real-time clock chip PFC 8563T and all the rest of the harness there. But all this is already on the display.

 

What made me ask about the capacitor is that I was facing a problem with this device when the batteries are empty Inverter loses the programming and basic settings

18 hours ago, Ahmed2024 said:

What made me ask about the capacitor is that I was facing a problem with this device when the batteries are empty Inverter loses the programming and basic settings

Of course, the settings and much besides are stored in non-volatile EEPROM, but it's possible that glitches on the power supply lines are causing these problems.

It might be worth testing the capacitance and/or ESR of bypass capacitors near the EEPROM on the control board.

I'm now fairly convinced, thanks to YRIIY's post above, that the supercapacitor or battery in the highlighted area is only used to supply the Real Time Clock's power. Perhaps some inspection of thick tracks in that area will confirm or deny this theory.