melac

Tarek Yag hello, here are two photos with the original parts. I hope it helps.

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

Today my MPP Solar 4024MT had similar problems.

Hi @bratpit. Axpert VM III Twin is supported by SA, I use it.

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

Hi roadrunner79. I posted it a few posts earlier.

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

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