Hello,

 

I bought from EASun the Igrid SV IV 5.6kw. The inverter works well. But I have problems with the USB connection to retrieve data. The connection breaks irregularly. That is, it goes one to 2 hours well and then I get no more data. The logger (solaranzeige) then reports "USB port can not be opened" If I then press the left button on the inverter, the interface is activated again. Annother One with a newer Firmware works well. The Firmware of the worst Inverter is Main 05401 Slave 04022 and the good Inverter has Main 05600 Slave 08025.

Is an upgrade for the Firmware aviable ?

And is this the same as the Axpert MKS IV 5.6kw ?

Can anyone help ? .

Thanks from Germany Michael

1 hour ago, Michael_Germany said:

I bought from EASun the Igrid SV IV 5.6kw.

The Easun IGRID models seem to be on-grid (hybrid, grid-tie, capable of export), equivalent  to Infini models, whereas the ISOLAR models seem to be off-grid, equivalent to Axperts.

1 hour ago, Michael_Germany said:

Is an upgrade for the Firmware available ?

You would have to ask your supplier, or find a Voltronic firmware and hope that they are compatible. The Voltronic model that this may be cloned from is quite recent, I've not seen any firmware, though I don't actively look for hybrid firmware any more.

1 hour ago, Michael_Germany said:

And is this the same as the Axpert MKS IV 5.6kw ?

No. There are three Voltronic models that look very similar: the Axpert MKS IV (off-grid, parallelable, 450 V max PV), the Axpert VM IV (off-grid, not parallelable, 500 V max PV), and I assume that there is an Infini model that looks the same. I can't quickly find it on any web pages. Your EASun seems to be a clone of this Infini model, although the specifications and appearance are so strikingly similar that I wonder if the EASuns are actually genuine Voltronic models rebranded. This site says that they are clones. It's hard to believe that EASun would have a cloned model available for months and yet Voltronic and its major re-branders have not even gotten web pages up as yet.

Edit: Ah, the Infini model I was looking for is the InfiniSolar V IV 5.6kW:

https://voltronicpower.com/en-US/Product/Detail/InfiniSolar-V-IV

 

Edited August 1, 20223 yr by Coulomb

17 minutes ago, Coulomb said:

Edit: Ah, the Infini model I was looking for is the InfiniSolar V IV 5.6kW:

Interesting. Looking at that InfiniSolar, it looks identical to this Kodak excepting for the Kodak Logo.
https://www.solar-shop.co.za/kodak-inverters/675-kodak-solar-off-grid-inverter-56kw-48v.html

They do have that USB comms issue, connect via USB-232 to the RJ45, that comms run stable.

47 minutes ago, zsde said:

Looking at that InfiniSolar, it looks identical to this Kodak excepting for the Kodak Logo.

Yet that Kodak model is the off-grid one.

Edit: Pretty confusing that the two Voltronic models use the same metalwork.

Edited August 1, 20223 yr by Coulomb

3 hours ago, Coulomb said:

The Easun IGRID models seem to be on-grid (hybrid, grid-tie, capable of export), equivalent  to Infini models, whereas the ISOLAR models seem to be off-grid, equivalent to Axperts.

You would have to ask your supplier, or find a Voltronic firmware and hope that they are compatible. The Voltronic model that this may be cloned from is quite recent, I've not seen any firmware, though I don't actively look for hybrid firmware any more.

No. There are three Voltronic models that look very similar: the Axpert MKS IV (off-grid, parallelable, 450 V max PV), the Axpert VM IV (off-grid, not parallelable, 500 V max PV), and I assume that there is an Infini model that looks the same. I can't quickly find it on any web pages. Your EASun seems to be a clone of this Infini model, although the specifications and appearance are so strikingly similar that I wonder if the EASuns are actually genuine Voltronic models rebranded. This site says that they are clones. It's hard to believe that EASun would have a cloned model available for months and yet Voltronic and its major re-branders have not even gotten web pages up as yet.

Edit: Ah, the Infini model I was looking for is the InfiniSolar V IV 5.6kW:

https://voltronicpower.com/en-US/Product/Detail/InfiniSolar-V-IV

 

Hello,

The inverter works as an OFF grid device. I have 3 units in use without mains operation. Each inverter has a PV string 8 x 400 Wph and all work on a battery 16 cells LiFEPO4 600ah so 32kwh. The devices have been working perfectly for 3 months.

Hello,

EASun sent me new firmware today. The folder is called INFINIVIV5.6REFLASH5600.rar. Unfortunately, I cannot connect to the inverter because the PC recognises the USB interface but does not install a COM driver.

LG Michael

4 hours ago, Riaanh said:

They do have that USB comms issue, connect via USB-232 to the RJ45, that comms run stable.

Hi

I have tried but I can't get a connection with a USB to RS232 adapter. Tested 5 types

LG Michael

13 hours ago, Michael_Germany said:

The inverter works as an OFF grid device. I have 3 units in use without mains operation.

Yes, they can be used off-grid. I have a suspicion that the hardware in the Infini V series is very similar if not identical to the Axperts; the main difference would be that the Axpert firmware aims to never export, while the Infini firmware allows export depending on conditions. That would explain the similarity in external features. Even the displays appear to be identical now.

Oh, and the Infinis get certifications while the Axperts don't. Those certifications have to be expensive.

Good to hear that EASun are able to provide firmware updates in reasonable time.

Even without the RS-232 interface working (very strange that it doesn't), you should be able to update the main firmware using the "upgrade firmware" function. See your manual under USB Function Setting (just after setting 100). You'll need a USB "on the go" (OTG) cable and a USB thumb drive.

If you need more help with the firmware updating, this post, although designed for models with a removable display, may help. The needed hex file may be called something else for your model, but it would have the .hex extension.

Edited August 2, 20223 yr by Coulomb

Thank you for the good advice. I have ordered an OTG cable and will report back. The firmware I received from EASun contains a file dsp.hex. I assume that this contains the firmware for the inverter. I still have one question.
If you display the firmware statuses, you always see 2 Master and Slave, are both flashed with one file?

Thank you and best regards

1 hour ago, Coulomb said:

Even without the RS-232 interface working (very strange that it doesn't), you should be able to update the main firmware using the "upgrade firmware" function. See your manual under USB Function Setting (just after setting 100). You'll need a USB "on the go" (OTG) cable and a USB thumb drive.

I have tested 5 different RS232 to USB adapters and none of them could connect to SolarPower. With which converter does it work for sure?

1 hour ago, Michael_Germany said:

The firmware I received from EASun contains a file dsp.hex. I assume that this contains the firmware for the inverter.

Yes, very likely. Though I thought that Infini firmware might have a master.hex and a slave.hex. I have a 10 kW Infini firmware, and it has three firmwares: dsp.hex, master.hex, and slave.hex. The dsp.hex is in a folder called "Relay", so this seems to be a third firmware for a relay board. Maybe that's what they sent you by mistake.

1 hour ago, Michael_Germany said:

If you display the firmware statuses, you always see 2 Master and Slave, are both flashed with one file?

No, each flashable chip has to be flashed separately, as far as I know.

What software was reporting firmware versions for master and slave? It's possible that Infini Vs need different monitoring software than classic Infinis, or possibly they use Watchpower instead of Solarpower. Or there might be a different phone app for the Invinis. Or if you're using a product like Solar Assistant, it may be assuming that it's talking to a classic Infini rather than a modern Infini V.

Does your manual talk about master and slave firmwares? The Infinisolar V IV manual just says Main and Secondary CPU version checking, like the Axperts.

2 hours ago, Michael_Germany said:

With which converter does it work for sure?

Two recommendations: 

 and

 

9 hours ago, Coulomb said:

Yes, very likely. Though I thought that Infini firmware might have a master.hex and a slave.hex. I have a 10 kW Infini firmware, and it has three firmwares: dsp.hex, master.hex, and slave.hex. The dsp.hex is in a folder called "Relay", so this seems to be a third firmware for a relay board. Maybe that's what they sent you by mistake.

No, each flashable chip has to be flashed separately, as far as I know.

What software was reporting firmware versions for master and slave? It's possible that Infini Vs need different monitoring software than classic Infinis, or possibly they use Watchpower instead of Solarpower. Or there might be a different phone app for the Invinis. Or if you're using a product like Solar Assistant, it may be assuming that it's talking to a classic Infini rather than a modern Infini V.

Does your manual talk about master and slave firmwares? The Infinisolar V IV manual just says Main and Secondary CPU version checking, like the Axperts.

When I display the firmware in the Solarpower app, the following information is displayed. 2 inverters have Main 05401 Slave 04022 and 1 inverter has Main 05600 Slave 08025.
 

Then it seems to me that the Infini firmware that they sent you should have a master.hex and a slave.hex. Maybe there are three hex files in the archive?

No only dsp.hex is in the package.

2 minutes ago, Michael_Germany said:

No only dsp.hex is in the package.

the follow file in the directory that named InfiniSolarV28066Reflash

dsp.hex, hex2000.exe, hexbin.exe, InfiniMasterCpu_Reflash.exe, Inv.cmd, Inv.out, MFC42D.DLL, MFCO42D.DLL, MSVCRTD.DLL, Redme.txt, winmm.dll, and a .bat in chineese
 

8 hours ago, Michael_Germany said:

InfiniMasterCpu_Reflash.exe,

Ah, OK. They seem to have changed the relash tool slightly. It sounds like this is for the master CPU only, and it's definitely for Infinis.

I cannot work with the Flash tool because the inverter is not recognised by Windows. When I connect the USB cable to the PC, the inverter is recognised as a HID input device but no COM port is installed. I have not found a driver for it.

Here is a small interim status of my efforts. Flashing the display unit (MCU) works. I can use both the AXPERT firmware and the EASUN firmware. However, the main firmware (DSP) does not want to work. When I use the flash tool via the RS232, I always get "Connection fail" and when I want to flash via the USB interface, I always get U03, i.e. wrong file format or wrong file. I do not know what to do.

LG Michael

On 2022/08/01 at 2:03 PM, Coulomb said:

The Easun IGRID models seem to be on-grid (hybrid, grid-tie, capable of export), equivalent  to Infini models, whereas the ISOLAR models seem to be off-grid, equivalent to Axperts.

You would have to ask your supplier, or find a Voltronic firmware and hope that they are compatible. The Voltronic model that this may be cloned from is quite recent, I've not seen any firmware, though I don't actively look for hybrid firmware any more.

No. There are three Voltronic models that look very similar: the Axpert MKS IV (off-grid, parallelable, 450 V max PV), the Axpert VM IV (off-grid, not parallelable, 500 V max PV), and I assume that there is an Infini model that looks the same. I can't quickly find it on any web pages. Your EASun seems to be a clone of this Infini model, although the specifications and appearance are so strikingly similar that I wonder if the EASuns are actually genuine Voltronic models rebranded. This site says that they are clones. It's hard to believe that EASun would have a cloned model available for months and yet Voltronic and its major re-branders have not even gotten web pages up as yet.

Edit: Ah, the Infini model I was looking for is the InfiniSolar V IV 5.6kW:

https://voltronicpower.com/en-US/Product/Detail/InfiniSolar-V-IV

 

The instructions on the Voltronic page are word for word the same as the enclosed EASUN instructions.

Hello,

is there a way to download the firmware from the inverter?
I still have working inverters, so I could upload the firmware to the defective inverter.
Thanks for the help
I have already sent several e-mails to Andy at EASUN, but there are no more replies. Good service is different.

54 minutes ago, Michael_Germany said:

is there a way to download the firmware from the inverter?

With genuine Axperts, no. The firmware is protected by a 128-bit password.

It's possible that EASun don't bother with this, but I doubt it.

On 2022/08/04 at 9:19 PM, Michael_Germany said:

Here is a small interim status of my efforts. Flashing the display unit (MCU) works. I can use both the AXPERT firmware and the EASUN firmware. However, the main firmware (DSP) does not want to work. When I use the flash tool via the RS232, I always get "Connection fail" and when I want to flash via the USB interface, I always get U03, i.e. wrong file format or wrong file. I do not know what to do.

LG Michael

Hi there Michael

From my little experience with firmware updates its seems like you HAVE to use a USB to Serial adapter that uses the FTDI chip to avoid these connection fail messages.

Cheers

Douw

Hallo Michael,

ich habe die gleichen Wechselrichter und das selbe Problem mit den unterschiedlichen Software Versionen. easun meldet sich bei mir auch nicht. Wärst Du so nett und würdest mir die firmware die Du von denen bekommen hast mal zu mailen? Dann würde ich das bei mir auch mal probieren. Ich danke Dir. Viele Grüße Christian