22 hours ago, Mika said:

Hi! Here is the newest firmware (v60.05) for Axpert VM III-4000 TWIN. Good luck!

VM III_TWIN_60.05.ZIP 337.28 kB · 1 download

Oh Thank You so much

On 2023/06/20 at 10:57 AM, Mika said:

Hi! Here is the newest firmware (v60.05) for Axpert VM III-4000 TWIN. Good luck!

VM III_TWIN_60.05.ZIP 337.28 kB · 40 downloads

Hi @Mika,

Thank you for your share.

Since you posted this update, are there any newer versions for the same model?

This exact firmware applies to VM IV-4000 TWIN too, so I'm very interested in any updates for U1 or U2. I currently have U1 (60.05) U2 (39.09) installed on my inverter.

Best Wishes,

Tarek

15 hours ago, Tarek Y. said:

Hi @Mika,

Thank you for your share.

Since you posted this update, are there any newer versions for the same model?

This exact firmware applies to VM IV-4000 TWIN too, so I'm very interested in any updates for U1 or U2. I currently have U1 (60.05) U2 (39.09) installed on my inverter.

Best Wishes,

Tarek

HI

Is there any disadventages in 60.05 firmware?

On 2023/11/19 at 9:46 PM, bratpit said:

HI

Is there any disadventages in 60.05 firmware?

Not that I'm aware of. I just like to keep every software up to date! It's a sort of good practice in software.

I have updated my MPP Solar 6048MT (I believe it's Axpert VM III 6KVA) to 60.05 firmware.

It seems that MPPT algorithm is a little bit better on cloudy days than my previous version 56.97, but still far from perfect.

There is a new bug, it seems that I can't increase "L2 turn-off battery voltage " above 45.9V. It was working on previous firmware.]

Maybe someone else can check?

 

Hello.
I have an MPPSolár 4024MT inverter, (Axpert VM III Twin 4Kw)
It measured the current of the grid in incorrectly and when it switched to the bypass mode, it charged the battery with a constant 4A if voltage appeared on the PV input, even though the grid charging was disabled.
I received a new firmware for this from MPPSolár, which has been fixed.
But he has some problems.
It measures the current of the battery incorrectly, with a difference of 2A, and still charges the battery from the grid by 1-2 A
other than that it works fine.

 

VM_III_Twin_60_89.zip

Edited January 10, 20242 yr by melac

And what was your previous firmware number?

A  couple posts before  Tarek no complains about 60.05 firmware.

Maybe worth to try.

Previously, the firmware was 60.05. Those who rely on the measurements of the inverter will not notice the errors.

 

Edited January 6, 20242 yr by melac

There is also on this forum 60.06 firmware patched by Coulomb.

or in topic 

Quote

Force MPPSolar (Voltronic) bulk and float voltages for connected Pylontech battery

firmware 60.66 that fixes charging from the grid .

But I do not know if it is better than yours.

On 2024/01/07 at 2:55 AM, bratpit said:

But I do not know if it is better than yours.

60.87 is the latest; in order latest to oldest: 60.87, 60.95, 60.89, 60.06, 60.76, 60.05, 60.74, 60.04, 60.66, 60.90.

[ Edit Sep 2024: Added more versions. 60.87 is now the latest; was 60.89. ]

Edited September 2, 20241 yr by Coulomb

On 2024/01/07 at 3:56 AM, Coulomb said:

60.89 is the latest; in order latest to oldest: 60.89, 60.06, 60.05, (big gap) 60.04, 60.66, 60.90.

Hi! Where can we find 60.89 firmware?

Hi roadrunner79. I posted it a few posts earlier.

Edited January 9, 20242 yr by melac

@roadrunner79, you might be deterred by the "4024" at the start of the file name; these VM firmwares handle at least 3 power levels at once. In this case, 6000/4000/1500 W. At power-on, the resistance at a particular analog input pin determines what model hardware the firmware is running on. So it's a 4 kW firmware and a 6 kW firmware and a 1.5 kW firmware all at the same time.

4 hours ago, Coulomb said:

@roadrunner79, you might be deterred by the "4024" at the start of the file name;

@Coulombmaybe you are right, i corrected the file name instead.

On 2024/01/05 at 11:08 PM, melac said:

Hello.
I have an MPPSolár 4024MT inverter, (Axpert VM III Twin 4Kw)
It measured the current of the grid in incorrectly and when it switched to the bypass mode, it charged the battery with a constant 4A if voltage appeared on the PV input, even though the grid charging was disabled.
I received a new firmware for this from MPPSolár, which has been fixed.
But he has some problems.
It measures the current of the battery incorrectly, with a difference of 2A, and still charges the battery from the grid by 1-2 A
other than that it works fine.

Weird, so they reintroduced this wrong behavior? My (much older) 60.66 firmware made it fully stop charging from grid if "Only solar" is selected

5 hours ago, WallK said:

Weird, so they reintroduced this wrong behaviour?

Sadly, it's not so surprising.

On 2024/01/06 at 12:08 AM, melac said:

Hello.
I have an MPPSolár 4024MT inverter, (Axpert VM III Twin 4Kw)
It measured the current of the grid in incorrectly and when it switched to the bypass mode, it charged the battery with a constant 4A if voltage appeared on the PV input, even though the grid charging was disabled.
I received a new firmware for this from MPPSolár, which has been fixed.
But he has some problems.
It measures the current of the battery incorrectly, with a difference of 2A, and still charges the battery from the grid by 1-2 A
other than that it works fine.

 

VM_III_Twin_60_89.zip 2.35 MB · 35 downloads

Dear

Is this the last version 

I have axpert vm iii 4kw twin 

And fan not stop when no load 

Any update to fix this problem 

And is there update for u2 the curren is 25.08

Hi mhdite7 , this is the latest version I know of. It works well for me.

 

3 hours ago, melac said:

Hi mhdite7 , this is the latest version I know of. It works well for me.

 

I see version 70.04 in vm iv 4kw 

Is this firmware work on vm iii 4kw?

And if you have it can you send it to me

On 2024/03/30 at 12:26 AM, mhdite7 said:

I see version 70.04 in vm iv 4kw 

Is this firmware work on vm iii 4kw?

And if you have it can you send it to me

After searching this forum, I didn't find any firmware with version number 70.04 for VM III Twin or VM IV Twin, and I didn't even hear of such a version for these models.

Are you sure you don't mean version 60.04 instead? It's available in other posts, but it is very old now.

You might be confusing with 70.04 (and 70.06 and possibly later) for the Axpert King II. That's a totally different firmware series for a  totally different model, just confusingly sharing the same major firmware number (70).

@Coulomb thank you very much for clarifying this. I would have fallen for the same confusion later on after my VM IV Twin got the new firmware of version 70.00

This is totally expected from a team of amateurs not following any standards in software production, producing firmware with random versioning scheme for a huge collection of hardware. Thanks to you, it would've been impossible to differentiate between them without you. I'm glad you're here!

Edited June 1, 20242 yr by Tarek Yag

@Tarek Yag 

thanks 

i have axpert vm iii 4kw

u1 : 60.06 

is there any update ?

to fix discharing from battery issue?

On 2024/03/29 at 9:25 PM, melac said:

Hi mhdite7 , this is the latest version I know of. It works well for me.

 

there is issue 

if battery is fully charged 

the system show discharing from battery 

On 2024/06/03 at 12:46 AM, mhdite7 said:

u1 : 60.06 

is there any update ?

I'm not aware of anything later. [ Edit: Sigh. I overlooked 60.89, which is slightly later than 60.06. ]

On 2024/06/03 at 12:47 AM, mhdite7 said:

if battery is fully charged 

the system show discharing from battery

I believe that this is normal.

Edited June 4, 20242 yr by Coulomb