Dear all,
I have a 3-phase off-grid system of 3x5kVA Quattros running on firmware version 494 and Pylontech hub of 4x8 US2000.
The inverter settings are 44V for cut-off, 48V for both pre-alarm and restart. A genset is configured via Cerbo GX to start at 8% and stop at 15% SOC. This worked well for weeks but things changed when we started experiencing low battery alarm on the inverter at 18% SOC (which is about 47.2V), way before the DG could start at 8%. What could be the cause ladies and gentlemen?