I have programmed a system with 2 Quattros of 10kW to obtain a 120/240 split phase system, also 1 Cerbo GX and 4 MPPT 100-250 controllers, and 20 kWp on PV power, and 30 kWh on storage by pylontech, an 20kW on propane generator.
The issue is that in relay 1 I have connected the start/stop functions of the propane generator.
Additionally, and the reason for the question is that the generator could not start due to various faults, such as an empty propane tank or the starting battery does not work or someone forgot to put the system in automatic mode,
so, as an additional method, it is required that when a low SOC level (something like 30 - 40%), relay 2 be programmed to disconnect the load and only leave the essential load running (like a refrigerator and a modem).
I understand that I require a contactor previously wiring to separate the loads.
thanks for your time guys,
Greetings from Baja California Sur, Mexico.