mjmx8k

1 inverter is still sticky at 96v

Hi, is it correct that it starts up with 80v when in new firmware is set 175v?

Hallo Georg, hmm, even if the bar is dead, in theory it should stop glimming when set parameter 51 to off / Lds and interestingly 3P3 was glimming with U12.20 and started working today immediately with MCU Update U12.21. 3p1 and 3P2 did not stop glimming even on 51 Lds maybe i have different Versions of Display chips...

Hi Coulomb, i have updated all 4 Max1 8k inverters now to the modified version you made for me. Strange that on 2 of them the Led bar is working correct and on 2 of them the Led bar is glimming light red only - as it was before with the U2 12.20 All for of them show correct version numbers for U1 and U2 The 2 where the led bars is working lost all parameters and i had to enter them again. the 2 where the led bar is glimming only remembered the parameters. 2 of them was spinning up the vents during update, 2 of them not. Can bus connection is established and they are online in 3Phase mode. To see PV it was too late here today. Should i try to reflash the 2 with fancy red glimming led bars again or reset them to factory defaults and reconfigure them? Any way, i dont need the led bars, but somehow this tells me there is maybe more difference inside the box. thank you

btw, the Axpert MKS4 5,6kw Models FW 74.02 with 120v MPPT Startup have basically the same sticky 120v issues as the Max models.

Hi Coulomb, thank you very much. I´ve flashed the test Inverter well. I will update the other 3 later today.

Hi, i have 4 identical orange Axpert MAX1 8k (removable Display) from the same dealer as George594 but with the newer DSP board and the older Display Chip, all manufactured in 05/22 3 Inverters in 3Phase Configuration P1 P2 P3 1 Inverter Standalone (for testing, as a genset to battery charger and spare inverter) Initially they came with U1: 72.03 U2: 112.14 U2: flashed to bricked, then to 12.20 and now 12.21 (btw. i managed to fix the bricked display by putting it into another inverter and reflashed it well) Earlier Update attempts to Gerges594´s patched version 90.08 failed as at this point of time i did not know about the newer DSP Chip issue. As far as i can see the DSP Board has only 1 voltage regulator. I want to update due to the sticky 90v issue mainly, but there are some other issues like daily short power output losses (3 sec. off/on) in single phases and every some days CAN bus Data losses which result in a Phase 1 Inverter Fault 80 with complete power loss on all 3 phases until full restart. Inverter P1 is connected to Pylontech US3000C Battery bank So i guess for the U1 Update this Model needs the 92.xx version with the Arena flasher. Is there a Version with 175V MPPT Startup Voltage for both MPPT Ports available or could it be done? i have 2x6 300w Panels on 4 Tracker which gives around 195-220 Volt on load so a 200v version is too high for me. on P3 i have 1x7 300w Panels on 1 Tracker which gives around 250 volt, so this one also could live with 175v Thank you for any help in advance, as you all do a much better job here than the vendor and its support.