On 2024/09/19 at 9:01 PM, Mohammad Jawish said:

 

Hi

I have  Axpert VM III TWIN 4K

 

Main cpu version: 00060.10

Second cpu version: 00025.12

 

i'm using the 2nd output (twin) , set the OFF at 70% and ON at 75% , when the utility or solar source  is available the twin output stay off until the battery reach 75% percentage .while It should output solar or utility source if available based on selected priority 

 

And the monitoring app show that the battery always charging also when it reached 100% then it start decrement to 98%

The battery is lithium and pms connected 

So need the latest official firmware update that solve this problem

Hello Mohammad,

Regarding the twin issue, the only solution is to use a contactor. When the electricity comes back, it bypasses the output externally and turns on the load, so your load will remain on while the grid is available, regardless of the settings.

As for the battery, this behavior seems to occur with all Voltronic software, and I haven’t been able to find a version that behaves differently. I believe it’s beneficial for the battery’s balancing process, but I’m not 100% sure since I haven’t been able to confirm this through any official Voltronic support channels.

According to @Coulomb, the most recent version is 60.87 (ironically, 60.87 is newer than 60.89). However, I still noticed noisy fans, even though it’s somewhat smart and adaptive to the load. The cooling algorithm seems a bit aggressive to me.

Personally, I’m happy with version 60.76, which gives me stable solar performance, quieter fans, and support for the LIB BMS protocol.

U can find it in the attachment 

If you only plan to upgrade DSP firmware you can use the USB flash method so no need for l laptop and cables 

VM3.hex

10 hours ago, ahmad almawal said:

من فضلك ، أريد حلا لمشكلتي المتمثلة في توصيل بطارية ليثيوم Felicity بعاكس 5KW. أظهر الجهاز الخطأ 61. هل يحتاج الجهاز إلى برنامج؟ لاحظ أن كابل التوصيل موجود على جانب البطارية 5 ' 6 وعلى جانب العاكس. 3 ' 5

You can check this user guide from Felicity. Also, try changing option number 5 (battery type) to LIB, Lic, or Pylontech—one of them should work if the cable pins are correct.

Additionally, change the DIP switch on the battery as I did. Remember to restart both the inverter and the battery to apply the changes if you adjust the DIP switch.

This revision improves clarity and smooths out the phrasing. Let me know if you’d like any further adjustments!
 

Here’s the Arabic translation:

يمكنك مراجعة دليل المستخدم من Felicity. حاول أيضًا تغيير الخيار رقم 5 (نوع البطارية) إلى LIB أو Lic أو Pylontech، يجب أن يعمل أحدهم إذا كانت دبابيس الكابل صحيحة.

غير مفتاح الديب سويتش كما موضح في الصورة المرفقة 

وفي حال قمت بتغيره ، اطفي الانفيرتر و البطارية و شغلهم لتطبيق التغيرات 

 

15 minutes ago, esmail-kassir said:

Hello Mohammad,

Regarding the twin issue, the only solution is to use a contactor. When the electricity comes back, it bypasses the output externally and turns on the load, so your load will remain on while the grid is available, regardless of the settings.

As for the battery, this behavior seems to occur with all Voltronic software, and I haven’t been able to find a version that behaves differently. I believe it’s beneficial for the battery’s balancing process, but I’m not 100% sure since I haven’t been able to confirm this through any official Voltronic support channels.

According to @Coulomb, the most recent version is 60.87 (ironically, 60.87 is newer than 60.89). However, I still noticed noisy fans, even though it’s somewhat smart and adaptive to the load. The cooling algorithm seems a bit aggressive to me.

Personally, I’m happy with version 60.76, which gives me stable solar performance, quieter fans, and support for the LIB BMS protocol.

U can find it in the attachment 

If you only plan to upgrade DSP firmware you can use the USB flash method so no need for l laptop and cables 

VM3.hex 256.1 kB · 1 download

 

Is there any risk from firmware upgrade process?

 

Thanks very much for your comprehensive answer

1 hour ago, Mohammad Jawish said:

 

Is there any risk from firmware upgrade process?

 

Thanks very much for your comprehensive answer

    1.    Regarding U1 firmware (DSP firmware): It’s generally safe to update. You won’t damage your inverter, and in 99% of cases, there won’t be any issues. Even if the upgrade fails, you just need to restart, and everything should be fine. However, there is one exception: if your U2 firmware (LCD screen firmware) is very outdated, there could be an incompatibility issue. In that case, the inverter will work fine, but you’ll get a Fault Code 32, and the LCD will be unusable until you upgrade it. In my case, my U2 version is 25.12, the latest one, so the risk was 0% for me (based on my assumption).
    2.    Regarding U2 firmware: If you accidentally choose the wrong upgrade file, you could run into serious issues, and it might take a long time to restore your device to normal functionality. So, be very careful with this.

Feel free to message me or whatsapp if you need any help.

 

On 2024/09/09 at 9:28 PM, Tarek Yag said:

We've been hearing about this issue so much recently, but I'm still unable to figure out what's causing i

I upgraded to 60.87 and have the same issue (had 68.04) it seems to occur when put into solar only, despite being night. if I put util+sol or solar first it'll go back to its 4 amps it draws (can anyone else confirm an amp meter on this thing always says around 4amps regardless of the load is less???) 

 

 

is there a way for a true bypass? I'd like for it to just bypass grid at night and shut off since I don't have batteries. 

On 2024/08/06 at 3:22 PM, Coulomb said:

[ Edit: There may be problems with this patched firmware; see next post and associated discussion. I've checked my work again and it seems correct.
It may be that unpatched factory firmware version 60.95 has fixed the PV voltage stuck bug, and no patched firmware is needed at all, possibly other than 860.95 that fixes only the premature float bug. ]

 

Well, that was a bit ambitious; sorry for the delayed release. Since I'm not really closer to solving any of the charging bugs, here is the patched 60.95, just like 60.06, but with one other patched file that just has the premature float bug fixed (see below).

These are patched firmwares version 860.95, 260.95, 560.95, 160.95, and 960.95, all based on factory firmware version 60.95 for the Axpert VM III Twin 6kW and 4kW, and the Axpert VM IV Twin 6kW and 4kW. These patches implement most of Georg's MPPT "stuck at 90V" patches (here it would be "stuck at 60 V"), and fix the premature float bug. The only parts not applied are for the forward current constant, which doesn't seem to be changed based on solar voltage in any VM firmwares. The version number should display in full when using monitoring software, but will still show as 60.95 on the front panel display. Do not use with any other models, not even older VM III and VM IV models with power ratings like 5 kW or 3 kW, or non-twin models. Use at your own risk.

In the reflash tool, you may have to navigate to the folder with the patched files the first time it is run. Choose the hex file with the minimum MPPT voltage that you want:

860.95: float bug only

260.95: 200V min MPPT

560.95: 150V min MPPT

160.95: 100V min MPPT

960.95: 90V min MPPT

Use the 200 V variant if your PV panels are nearly always well above 200 V. Otherwise, use the 150 V version if your panels are almost always above 150 V. Use the 100 V version if your panels are particularly low in voltage. Try the 90 V version only if you have just 3 panels, the very bare minimum.

You can also of course choose the original factory firmware.

Firmware upload instructions.

dsp x60.95 VM III Twin patched.zip 2.01 MB · 34 downloads

Hi,

I have a MPP Solar PIP 6048MT (VM III Twin) 6KW inverter + 48V 220Ah AGM batteries, bulk voltage configured to 57.4V, float 54.4V, max charge current 30A, solar only charge.

I have updated inverter firmware from 60.95 to 860.95 (float bug only fix) and observed that it doesn't go to float, even if battery charge current drops to 0A. As long as it has PV available battery voltage stays at 57.4V.

I have attached 2 graphs, one from factory firmware 60.95, second one from 860.95.

What can be the cause for that behavior?

Is it something that I'm missing?

 

 

1 hour ago, roadrunner79 said:

Hi,

I have a MPP Solar PIP 6048MT (VM III Twin) 6KW inverter + 48V 220Ah AGM batteries, bulk voltage configured to 57.4V, float 54.4V, max charge current 30A, solar only charge.

I have updated inverter firmware from 60.95 to 860.95 (float bug only fix) and observed that it doesn't go to float, even if battery charge current drops to 0A. As long as it has PV available battery voltage stays at 57.4V.

I have attached 2 graphs, one from factory firmware 60.95, second one from 860.95.

What can be the cause for that behavior?

Is it something that I'm missing?

Ha . It' oposite to mine. Never went to bulk.

51 minutes ago, bratpit said:

Ha . It' oposite to mine. Never went to bulk.

I saw in previous messages that you have LFP, maybe that's why we have different behavior.

You found a solution for this? What version are you currently using? Or found to be the best?

47 minutes ago, roadrunner79 said:

I saw in previous messages that you have LFP, maybe that's why we have different behavior.

You found a solution for this? What version are you currently using? Or found to be the best?

Maybe but Inwerter do not know  difference between LFP and AGM because of "user"  mode.

There is no difference for me between 60.95 and 860.95 so I stay with patched one.

For LFP batteries  no matter if I charge it to 30%, 70% or 99% or discharge to 5% .As long as you stick to flat characteristics (avoid upper and lower  knee) of charge and discharge everething is OK and they like it

So termins "bulk , float" is from the leaden world barelly fit to LFP.

LFP charge to some point or discharge and thats all. 

If inverter allow you set that points more or less precisely (eg. 95% - 5%) there is no need go to  "float".

Edited September 23, 20241 yr by bratpit

I have AGM, so I need bulk/absorption/float.

I've tried different settings in 860.95 (SUB, SBU, UTI, charge current, float/bulk voltages), no way to make it go to float, even if charge current is 0. 

I will probably go back to 60.95.

On 2024/09/21 at 10:48 AM, esmail-kassir said:

Hello Mohammad,

Regarding the twin issue, the only solution is to use a contactor. When the electricity comes back, it bypasses the output externally and turns on the load, so your load will remain on while the grid is available, regardless of the settings.

As for the battery, this behavior seems to occur with all Voltronic software, and I haven’t been able to find a version that behaves differently. I believe it’s beneficial for the battery’s balancing process, but I’m not 100% sure since I haven’t been able to confirm this through any official Voltronic support channels.

According to @Coulomb, the most recent version is 60.87 (ironically, 60.87 is newer than 60.89). However, I still noticed noisy fans, even though it’s somewhat smart and adaptive to the load. The cooling algorithm seems a bit aggressive to me.

Personally, I’m happy with version 60.76, which gives me stable solar performance, quieter fans, and support for the LIB BMS protocol.

U can find it in the attachment 

If you only plan to upgrade DSP firmware you can use the USB flash method so no need for l laptop and cables 

VM3.hex 256.1 kB · 5 downloads

Thanks for your reply 

 

I upgrade my inverter to the mentioned version 

The twin problem not solved 

I faced other problem after the update 

Max charging current reduced to 10amp

I tried to modify it many times but it return to 10amp after battery fully charged and not goes up again.

 

The voltronicpower.com replied to my question about twin problem and send me a special version @Coulomb

 

Dear Mohammad,

 

 

 

Thanks for your e-mail.

 

 

 

The PV energy is not stable, if the 2nd output is turned ON too fast then the 2nd output may be ON/OFF frequently when the PV energy is not stable. We have one special version of Main CPU firmware to turn ON the 2nd output when the inverter backs to AC mode for more than 1 min. Please upgrade the firmware to check if it could comply your request.

 

 

 

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM TWIN_84.00.7z

Since this is the customized firmware and the firmware version is different.

 

 

 

If you want to recover the main CPU firmware back to mass production version, you could also get the firmware 60.10 through below link.

 

 

 

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM III TWIN_60.10.7z

 

 

 

Best Regards,

4 minutes ago, Mohammad Jawish said:

The voltronicpower.com replied to my question about twin problem and send me a special version

@Coulomb

as I can see they shared FTP link so you can explore other folders , and I found many interesting things such as a firmware with 60.10 dated june-2024 (in the file meta data ) , according to @Mohammad Jawish they told him that it is the last official version !

 

Main folder:

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/

Twin modified version :

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM TWIN_84.00.7z

Big thanks to @Mohammad Jawish for sharing the link with us 

2 hours ago, Mohammad Jawish said:

We have one special version of Main CPU firmware to turn ON the 2nd output when the inverter backs to AC mode for more than 1 min. Please upgrade the firmware to check if it could comply your request.

Now this is a really good fix which was needed.

I entered to post it 😄, I recieved the same link yesterday from Voltronic based on the serial number of my device and I really get confused. I'm waiting their reply regarding the fixes in firmware 60.10 and and remote panel 25.15.

Maybe the defferences in firmware version numbers are based on the reseler brand names (mine is TribleA with factory firmware 60.08)

For the other brands there are different ftp folders based on the first letter of the brand name.

@Coulomb I do really appreciate if you can have time to look at formware 60.10 before I update my inverter.

Edited September 25, 20241 yr by AMalakani

I have a problem with this device AXPERT VM VI 4KW it does a factory reset is there a solution to this problem knowing that
U1 72.00
U2 19.16

Edited September 26, 20241 yr by ahmad almawal

16 hours ago, AMalakani said:

Now this is a really good fix which was needed.

I entered to post it 😄, I recieved the same link yesterday from Voltronic based on the serial number of my device and I really get confused. I'm waiting their reply regarding the fixes in firmware 60.10 and and remote panel 25.15.

Maybe the defferences in firmware version numbers are based on the reseler brand names (mine is TribleA with factory firmware 60.08)

For the other brands there are different ftp folders based on the first letter of the brand name.

@Coulomb I do really appreciate if you can have time to look at formware 60.10 before I update my inverter.

How did you contact them? Through email or their main website?

It makes sense if each brand has different firmware version numbers. 

My inverter brand is renovo and I want to contact them to see if there is different firmware for my inverter

5 hours ago, Eddie1 said:

How did you contact them? Through email or their main website?

I contact them by email [email protected] and one of the concerned persons will contact you.

Email them with a photo of your inverter's serial number and they will contact you in a couble of days.

6 hours ago, Eddie1 said:

It makes sense if each brand has different firmware version numbers.

It's just my conclusions.

On 2024/09/25 at 11:10 AM, Mohammad Jawish said:

Thanks for your reply 

 

I upgrade my inverter to the mentioned version 

The twin problem not solved 

I faced other problem after the update 

Max charging current reduced to 10amp

I tried to modify it many times but it return to 10amp after battery fully charged and not goes up again.

 

The voltronicpower.com replied to my question about twin problem and send me a special version @Coulomb

 

Dear Mohammad,

 

 

 

Thanks for your e-mail.

 

 

 

The PV energy is not stable, if the 2nd output is turned ON too fast then the 2nd output may be ON/OFF frequently when the PV energy is not stable. We have one special version of Main CPU firmware to turn ON the 2nd output when the inverter backs to AC mode for more than 1 min. Please upgrade the firmware to check if it could comply your request.

 

 

 

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM TWIN_84.00.7z

Since this is the customized firmware and the firmware version is different.

 

 

 

If you want to recover the main CPU firmware back to mass production version, you could also get the firmware 60.10 through below link.

 

 

 

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM III TWIN_60.10.7z

 

 

 

Best Regards,

 

On 2024/09/25 at 11:18 AM, esmail-kassir said:

@Coulomb

as I can see they shared FTP link so you can explore other folders , and I found many interesting things such as a firmware with 60.10 dated june-2024 (in the file meta data ) , according to @Mohammad Jawish they told him that it is the last official version !

 

Main folder:

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/

Twin modified version :

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM TWIN_84.00.7z

Big thanks to @Mohammad Jawish for sharing the link with us 

is this version is compatible with VM 4 twin models ? with round display touch buttons ?

For reference, here are the changes in the firmware 60.10 as replyed by voltronic

The firmware upgrade is to optimize the inverter not to trigger over temperature alarm easily and we also added Prog.42 & 43 for supporting calibration of current detection.

I didn't understand what are programs 42 & 43 for. 🥴

Edited September 27, 20241 yr by AMalakani

For all those that have used my patched VM III and VM IV bugs, my humblest apologies! I included a fix for the premature float bug, thinking that it was a two-word patch, but I misunderstood the logic, and as reported by several users, the patched firmware never goes to float! These are the perils of patching code that you can't test on an actual machine.

The first fixed patched firmware I'm releasing is for factory firmware version 60.95, mainly because user @roadrunner79 sent me excellent graphs detailing exactly what the problem is. This change affects all the variants, so I've numbered the fix for these as x60.96, even though they are based on factory firmware version 60.95. I hope that there is never a factory firmware version 60.96 to get confused with.

If you are using any of the x60.95 patched firmwares, please update to x60.96 at your earliest convenience.

Once I get some feedback that I've correctly fixed this bug, I hope to apply it to other VM III and VM IV patched firmwares.

These are patched firmwares version 860.96, 260.96, 560.96, 160.96, and 960.96, all based on factory firmware version 60.95 for the Axpert VM III Twin 6kW and 4kW, and the Axpert VM IV Twin 6kW and 4kW. These patches implement most of Georg's MPPT "stuck at 90V" patches (here it would be "stuck at 60 V"), and fix the premature float bug. The only parts not applied are for the forward current constant, which doesn't seem to be changed based on solar voltage in any VM firmwares. The version number should display in full when using monitoring software, but will still show as 60.95 on the front panel display. Do not use with any other models, not even older VM III and VM IV models with power ratings like 5 kW or 3 kW, or non-twin models. Use at your own risk.

In the reflash tool, you may have to navigate to the folder with the patched files the first time it is run. Choose the hex file with the minimum MPPT voltage that you want:

860.96: float bug only

260.96: 200V min MPPT

560.96: 150V min MPPT

160.96: 100V min MPPT

960.96: 90V min MPPT

Use the 200 V variant if your PV panels are nearly always well above 200 V. Otherwise, use the 150 V version if your panels are almost always above 150 V. Use the 100 V version if your panels are particularly low in voltage. Try the 90 V version only if you have just 3 panels, the very bare minimum.

You can also of course choose the original factory firmware.

Firmware upload instructions.

 

dsp x60.96 VM III Twin patched.zip

-_not needed sorry

Edited September 29, 20241 yr by Fawad

On 2024/09/27 at 3:38 PM, Coulomb said:

. Try the 90 V version only if you have just 3 panels, the very bare minimum.

1-If my PV voltage is around 60 but with very little current 

do I benefit from the firmware or I should have higher current 

2- does this firmware has quite fans ? As I fOund that 60.95 and 60.87 much noisy that 60.76

@Coulomb

Edited September 28, 20241 yr by esmail-kassir

12 hours ago, esmail-kassir said:

1-If my PV voltage is around 60 but with very little current 

do I benefit from the firmware or I should have higher current 

No. Very low panel  current like that at a panel voltage towards the low end indicates that there just isn't significant solar insolation (potential solar power) available.

12 hours ago, esmail-kassir said:

2- does this firmware has quiet fans ? As I found that 60.95 and 60.87 are much more noisy than 60.76

Sorry, I have no idea at this point. Owners/users will have to say; then I might be able to correlate that with what I read in the firmware.

On 2024/09/25 at 9:18 AM, esmail-kassir said:

@Coulomb

as I can see they shared FTP link so you can explore other folders , and I found many interesting things such as a firmware with 60.10 dated june-2024 (in the file meta data ) , according to @Mohammad Jawish they told him that it is the last official version !

 

Main folder:

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/

Twin modified version :

https://ftps.voltronic.com.tw/T/Temp-987EB17E23484B20A6C2/VM TWIN_84.00.7z

Big thanks to @Mohammad Jawish for sharing the link with us 

I believe You missed this post  

 

53 minutes ago, Coulomb said:

No. Very low panel  current like that at a panel voltage towards the low end indicates that there just isn't significant solar insolation (potential solar power) available.

That what I thought  , thank you ❤️ 

For curiosity, I flashed the 60.10 firmware with MCU 12.15 to my Axpert VM III Twin. Two new programs were added, 42 and 43 which I asked Voltronic about them and their response was:
Prog. 42 & 43 are used for below meter alarms. Prog. 42 for “Earth alarm” and Prog. 43 is for “Reverse alarm”.
And what mentioned in the updated user manual for VM III Twin about the two programs is:

I'm trying to understand the concept, so is there any thoughts?

Edited October 2, 20241 yr by AMalakani

On 2024/09/27 at 3:38 PM, Coulomb said:

For all those that have used my patched VM III and VM IV bugs, my humblest apologies! I included a fix for the premature float bug, thinking that it was a two-word patch, but I misunderstood the logic, and as reported by several users, the patched firmware never goes to float! These are the perils of patching code that you can't test on an actual machine.

The first fixed patched firmware I'm releasing is for factory firmware version 60.95, mainly because user @roadrunner79 sent me excellent graphs detailing exactly what the problem is. This change affects all the variants, so I've numbered the fix for these as x60.96, even though they are based on factory firmware version 60.95. I hope that there is never a factory firmware version 60.96 to get confused with.

If you are using any of the x60.95 patched firmwares, please update to x60.96 at your earliest convenience.

Once I get some feedback that I've correctly fixed this bug, I hope to apply it to other VM III and VM IV patched firmwares.

These are patched firmwares version 860.96, 260.96, 560.96, 160.96, and 960.96, all based on factory firmware version 60.95 for the Axpert VM III Twin 6kW and 4kW, and the Axpert VM IV Twin 6kW and 4kW. These patches implement most of Georg's MPPT "stuck at 90V" patches (here it would be "stuck at 60 V"), and fix the premature float bug. The only parts not applied are for the forward current constant, which doesn't seem to be changed based on solar voltage in any VM firmwares. The version number should display in full when using monitoring software, but will still show as 60.95 on the front panel display. Do not use with any other models, not even older VM III and VM IV models with power ratings like 5 kW or 3 kW, or non-twin models. Use at your own risk.

In the reflash tool, you may have to navigate to the folder with the patched files the first time it is run. Choose the hex file with the minimum MPPT voltage that you want:

860.96: float bug only

260.96: 200V min MPPT

560.96: 150V min MPPT

160.96: 100V min MPPT

960.96: 90V min MPPT

Use the 200 V variant if your PV panels are nearly always well above 200 V. Otherwise, use the 150 V version if your panels are almost always above 150 V. Use the 100 V version if your panels are particularly low in voltage. Try the 90 V version only if you have just 3 panels, the very bare minimum.

You can also of course choose the original factory firmware.

Firmware upload instructions.

 

dsp x60.96 VM III Twin patched.zip 2.01 MB · 14 downloads

Hi,

Below you can find a short comparison between 60.95 and 860.96.

On a good day looks like they have similar behavior.

Will have to see what happens on a cloudy day.

BR.