9 hours ago, Leonvd1983 said:

where can i find firmware for Axpert range of inverters ?

From the files section of this forum. It can be hard to find for beginners. so here is a link:

https://powerforum.co.za/files/category/1-files/

Make sure you get the correct firmware for your model.

Hello all 

I have upgraded my axpert king with 71.95 so no issue things worked well 

now which firmware should go for for display Bluetooth or mcu 

please help 

My Kings run happily on 02.60 with 71.95, but I would imagine the latest available (02.61?) would be the sensible version.

20 minutes ago, Calvin said:

My Kings run happily on 02.60 with 71.95, but I would imagine the latest available (02.61?) would be the sensible version.

Can you share download  link for 2.60 so that I can safely download and upgrade firmware 

For 02.60:

https://www.ostrovni-elektrarny.cz/support/Axpert/FW/RemotePanel_Reflash_MCU(02.60).rar

 

For 02.61

https://powerforum.co.za/applications/core/interface/file/attachment.php?id=15614

 

Edited April 23, 20215 yr by Calvin

Upgrade display with 2.61 

no issue yet 

I noticed MPPT delivering more power now 

thanks for supporting and guiding me 

This is my setup 

15*270 mono GSPV Panels 

12 panels towards south and 3 panels towards west for more power in evening time 

panels are dirty and birds sitting on the panels all day 

I have 5kva/5KW voltronic power VMIII inverter with brand name OneX. I am having this issue of fault code 32, i have got a .hex file from some one i tried install it using OTG after UPG i press for Yes, then after a few seconds and error code of U03 appears meaning the file format is wrong even though the file format is .hex. please help of anyone among you have this firmware then please share with me or suggest me where can i find it.

It might be that the USB stick is not formatted to its liking.

Or the hex file is for the wrong model inverter, though I'm not sure if it can tell. 

I think that for your model, it also has to be named vm3.hex. I wouldn't rename a dsp.hex because it is likely to be for the wrong model anyway. 

On 2020/07/19 at 2:49 PM, Coulomb said:

I have added remote display firmware version 02.49. It supersedes 02.40, and also should be used with main firmware version 71.92.

My apologies to those that recently downloaded 02.40.

Hi @Coulomb. I have a battery that supports the new voltronic LIB protocol. I'm trying to read data from it.  Does the firmware you posted somewhere contain the bytes the inverter sends to the BMS to query it?  I've tried various things and haven't received a response from the BMS yet. Any help will be greatly appreciated.

2 minutes ago, Denarius said:

Does the firmware you posted somewhere contain the bytes the inverter sends to the BMS to query it? 

It does. I'm busy at present, but I might be able to dig down and find some of the strings of bytes that are sent when in LIB protocol mode.

If I forget, prompt me with a PM.

17 minutes ago, Coulomb said:

It does. I'm busy at present, but I might be able to dig down and find some of the strings of bytes that are sent when in LIB protocol mode.

If I forget, prompt me with a PM.

That would be absolutely amazing thank you.

Lightly patched firmware version 71.97a for Axpert Kings (not Axpert King II), both LFP and non-LFP flavours, have been released. There is also extremely lightly patched display firmware version 20.66a, which displays the DSP firmware version properly (and no other changes or features so far).

Beta Version of Patched Firmware 71.97a / 02.66a for PIP-5048MK/Axpert King 5K .

@Coulomb

Quote

Main (DSP) patched firmware for lithium ferrous phosphate (LFP) (16S or 15S), including Pylontech:

dsp_BF1_71.97a.zip

The LFP firmware, why specifically 16s or 15s?  I'm planning on running 18s but I see no reason it should matter.  Would you mind double checking me on this? (if I'm missing something call me out plz)

On 2021/11/19 at 4:47 AM, Gnome said:

why specifically 16s or 15s? 

That was written back in the days of the 58.4 V maximum charge voltage. I guess these days you could run 18S, and only charge to 64/18 = 3.56 VPC. I guess that works around the clipping problem with low battery voltages, too.

Most commercial 48 V nominal LFP batteries are 15S, with a few 16S.

18 hours ago, Coulomb said:

That was written back in the days of the 58.4 V maximum charge voltage. I guess these days you could run 18S, and only charge to 64/18 = 3.56 VPC. I guess that works around the clipping problem with low battery voltages, too.

Most commercial 48 V nominal LFP batteries are 15S, with a few 16S.

Gotcha, but basically there was nothing about the firmware that specifically applied only to 15s or 16s correct?

Totally understand 16s being the default btw.  I think my configuration is "unique" (aka non-standard maybe not the best idea, time will tell)

Edited November 20, 20214 yr by Gnome

I assume

2 hours ago, Gnome said:

Gotcha, but basically there was nothing about the firmware that specifically applied only to 15s or 16s correct?

Totally understand 16s being the default btw.  I think my configuration is "unique" (aka non-standard maybe not the best idea, time will tell)

I assume you're happy that the upper limits on all 5 user voltage settings are not too restrictive for 18S LFP. They look OK to me. There are 3 hidden voltage settings that can't be changed by the user. We have set them based on 15S and 16S in the LFP flavour of our patched firmware. But they will probably be OK for 17S and 18S too. You can read about them here:

https://forums.aeva.asn.au/viewtopic.php?f=64&t=5955&p=76194#LFP

Time, indeed, is the real issue. The electrolytic capacitors on both the battery bus and the 400 V bus will age more rapidly because they will be running closer to their rated voltages. They will spend most of their time around 60 V instead of 53 V. It's almost certain that these inverters were not designed with that in mind. These capacitors, particularly those on the battery bus, have always been a weak point of these inverters. And when their internal resistance rises enough that they can't control the voltage spikes that the MOSFETs are subjected to, the MOSFETs will also be 7 V closer to their rated voltage.

12 minutes ago, weber said:

I assume

I assume you're happy that the upper limits on all 5 user voltage settings are not too restrictive for 18S LFP. They look OK to me. There are 3 hidden voltage settings that can't be changed by the user. We have set them based on 15S and 16S in the LFP flavour of our patched firmware. But they will probably be OK for 17S and 18S too. You can read about them here:

https://forums.aeva.asn.au/viewtopic.php?f=64&t=5955&p=76194#LFP

Firstly, thanks for taking the time to respond.

I did read about those and just wanted to check if you guys thought there was anything specific I should be concerned about, firmware wise.

12 minutes ago, weber said:

Time, indeed, is the real issue. The electrolytic capacitors on both the battery bus and the 400 V bus will age more rapidly because they will be running closer to their rated voltages. They will spend most of their time around 60 V instead of 53 V. It's almost certain that these inverters were not designed with that in mind. These capacitors, particularly those on the battery bus, have always been a weak point of these inverters. And when their internal resistance rises enough that they can't control the voltage spikes that the MOSFETs are subjected to, the MOSFETs will also be 7 V closer to their rated voltage.

I concur it is probably not likely they were designed with that in mind.

I'm unlikely to let the batteries go all the way up to 3.65v per cell.  My plan was to go no more than ~3.48 per cell, so about ~62-63v.  Based on a lot of what I've seen online that will give me roughly 90% charge.

Because of the amount of "load shedding" (ie. 2.5 hour power outages up to about 3 times a day) we have in South Africa, I'm mostly using this as a UPS.  I don't have solar, so I'm hoping that this means the inverter has been living an easy life.  Because we have so many outages, my lead acids aren't lasting more than 3 years at a time and these are costing nearly the same.

As you say, time will tell, someone has to see what will happen I guess.

On 2021/11/21 at 6:37 AM, Gnome said:

there was nothing about the firmware that specifically applied only to 15s or 16s correct?

Correct, as far as I can remember.

Edited November 23, 20214 yr by Coulomb

Good day.
Recently I bought Smart Watt 5k 80A MPPT aka Axpert king 5k. I can't find the setting for turning on charging from the mains by timer, is there such a function in this inverter model?

On 2021/12/29 at 5:02 AM, Ochnev said:

I can't find the setting for turning on charging from the mains by timer, is there such a function in this inverter model?

I don't believe so. It's really strange, as the Axpert VM III has it, and the King and VM III share the same display firmware. But the display firmware checks for which machine it's talking to, and if it's a King, it explicitly skips the code for timed changing of either charger source or output source priority. I have no idea why. Sure, the DSP probably has to have extra code to support this, but surely they could add that if it's not there already?

7 hours ago, Coulomb said:

I don't believe so. It's really strange, as the Axpert VM III has it, and the King and VM III share the same display firmware. But the display firmware checks for which machine it's talking to, and if it's a King, it explicitly skips the code for timed changing of either charger source or output source priority. I have no idea why. Sure, the DSP probably has to have extra code to support this, but surely they could add that if it's not there already?

Reading this forum, I realized that you are upgrading the firmware. Is it possible to add a charging timer function? Or write to Voltronics Power?

3 hours ago, Ochnev said:

Is it possible to add a charging timer function?

It's highly unlikely, since it probably needs tricky changes to the DSP firmware.

> Or write to Voltronics Power?

I have no communication with Voltronics engineers, sadly. In fact, they still don't believe that they have a premature float bug. 

The Kodak OG-7.2 (Axpert Max) has a timer function for output source priority and charger source. I am using it for output source priority and it works fine. Only issue is the unit's time is drifting.

4 hours ago, MJS said:

The Kodak OG-7.2 (Axpert Max) has a timer function for output source priority and charger source. I am using it for output source priority and it works fine. Only issue is the unit's time is drifting.

Tell me what version of the firmware of the display and the main board do you have?