Not a Victron but a Fronius specific question, but I have started monitoring 4 separate strings of 2 Fronius inverters trough node-red in the GX. The system gives no errors and works but I started worrying about this.
I just observed that in the largest of 4 strings (very asymmetric layout), when the light gets low in the mornings or evenings, or on a very cloudy day, as soon as that string goes below 350Watts, it drops power intermittently and i see some voltage fluctuations as well, see image. Not sure which happens first.
This never happens at higher power levels, where is is most of the time. The DC voltages are within spec of the inverter but still... anyone knows why this happens? The other strings don't behave as such, and there are no local cast-over shadows.
I didn't troubleshoot by putting that particular string on another inverter yet but i will.
Thanks!
