Inverter T17-G3 and MPPT connections

[Dalius]

Hi,

I have T17-G3 it has 2 MPPT connections in each i can connect 2 loops of solar modules

If i connect:

MPPT1:
1 loop 15 modules with 415w = 6,23kW
2 loop 3 moules with 490w = 1,47kW
MPPT2:
1 loop 18 modules with 490w = 8,82 kW
2 loop are empty

So with MPPT2 everything are ok.

Issue are with 1 loop ifa are connected 1 loop they shows ~600V
If I connect 2 loop it shows ~120V, but loop 2 also are 120V (I measure it directly)

Where could be issue? How to solve it? I cant find in manual how to solve it?

Thank you in advance for your help.

[Will]

Short answer, no. You should keep each string to a single loop for a string per mppt. Combining or using mixed panels is not supported and will cause issues,