Good day everyone 

There is this error popped whenever 2 of my 10kW 3P infinite Solar Inverters are connected in parallel mode (error 71) which means different firmware is connected. 

I have new set 10kW 3P infinite Solar Inverters, one of them has issue and it's require replacing the control board after done that the issue was resolved but can not be parallel again with other new ones, so I observed that the new control boards are of different version.

Assistance: Is there anyway I can upgrade the old control board to be compatible with the new version.

Thank you all and hoping to get working solution.

6 hours ago, Abbas Olatayo said:

Is there anyway I can upgrade the old control board to be compatible with the new version.

Tricky. I would say that you should be able to just update the firmware on one of them to be the same as the other, but it depends on what they have done with the control boards as to whether this will work. Do the existing firmwares have the same major version number i.e. xx.yy and xx.zz, where the xx are the same, but yy and zz are different? That might give a clue, but they way that Voltronic version numbers are going these days, its hard to say.

Edit: You'll almost certainly have to get the firmware update from your supplier.

Edited November 11, 20223 yr by Coulomb

32 minutes ago, Coulomb said:

Do the existing firmwares have the same major version number i.e. xx.yy and xx.zz, where the xx are the same, but yy and zz are different? That might give a clue,

The new firmware is 6.01 and 2.60 while the existing firmware is 1.01 and 1.01. 

I just need something that will work urgently

13 hours ago, Abbas Olatayo said:

The new firmware is 6.01 and 2.60 while the existing firmware is 1.01 and 1.01

Those are strange version numbers. In the current climate of brickings, I would not recommend using those. You will have to wait for assistance from your supplier. 

 

13 hours ago, Abbas Olatayo said:

need something that will work urgently

Is it possible to split your loads and run the inverters without paralleling them for now? I realise that this is awkward with a 3 phase system.

These incompatibilities are becoming a big problem.