utasek

Hi all, yesterday I have flashed fw 82.63, now its cloudy day in our region and MPPT is keeping voltage around 350V while the current is around 0.1A. It seems that 90V bug has been solved finaly

Hi all I have Axpert max 2, 10kW with fw 82.01. Maybe stupid question - Id like to flash fw 82.06 from that thread but why are there other files like *.ini *.bin? I thought that for flashing is used only fw.inv Thanks for responding regards Utasek

Hi all I need to disconnecting one string from my Axpert max II(10kW) remotely via ESP. Dont you know if it is feasible to use ssr relay for DC(400V and more) and high current? My string has got 10xLeapton LP182*182-M-60-MH(450Wp) many thanx for responses regards Utasek

Try to ask for firmware your supplier, is it possible that you can succeed. I have done that several times but with no results unfortunatelly

I have max2, 10kw and unfortunately bug when mppt is stuck around 90V during cloudy/foggy weather is still persisting.

I have same one but with white covers - now this model is out of stock, that seems that the colour of boxes could probably define DPS version. Still waiting for response from cercastock.it related to fw. - I have urged that but they are doing "dead bug"

Thank you. I have asked him 2times, but without reaction. Maybe he is workign on my request:) But many thanks for your effort

So, I have tried to flash 90.01 fw but I was not succeeded. I have choosen right port(COM4), turned on Axpert, disconnected PV and turn on output voltage, than start flashing but after confirmation that Im sure to flash on display appeared info about fw upgrade and nothing had happened. I couldnot confirm YES message on display by any button - they did not react. Any recommendation how to confirm flashing? Thank you for responding

Thank you for clarification, I will do that and let keep you informed

Hello Coulomb. Although my Axpert Max II contains 28066 processor are you sure that in case of incompatibility of FW the flashing process of 90.01 via refleshtool will not cause bricked system due to brick prevention? Im gonna do that asap but Id also to be sure tha I will not brick that

Many thanks for sharing. Today I will try to flash and let you know result.

I have check that and my PCB contains only 1xVR like on the bottom picture

May I kindly ask you to share link for Axpert Max 10kW vs 90.01 once again? I dont know why but cannot open that at all. Many thanks Regards Ludvik

Many thanx for your attitude and effort, appreciated. Im gonna open inverter and than check type of proc. and let you know. I will also try to upload version 90.01. I dont take care of warranty, the whole my solar system is joy Best regards from Czech Ludvik

Do I understand that correctly that for patching you would need to get current firmware 82.xx from my Axpert in order to be modified? Is there any way how to do that? thank you Ludvik

Hi all Im a newbie here, so in case that I have opened topic which have been discussed here sorry for redudant theme but I couldnot find much info about my Axpert Max II, 10kw - probably its not so widespread model yet. My inverter is original one. I have same problem like other colleagues - during summer time invertor has been working great(from the morning till the end of daylight) but now in the fall(cloudy weather etc) Im struggling with issue that invertor is showing around 90V on both strings. When I will turn off output power(by pressing the button under the big display) and that turn that back on the value of PV1 and PV2 voltage sudenly increase to 350V and invertor is starting to produce much more power from solar. It will be probably same firmware bug like on previous versions Does anyone have patched firmware for my invertor type? Many thanks for responses regards Ludvik