Hi, we are in the final design stages of a 3 Phase intentionally islanded system with 3 Quattro 15s. Using the assistants we want to ignore the grid connection on AC1 In and only grab it when battery low or load high. I have several systems on single phase using this set up which is fine, but i am concerned that the high load setting may miss a high load on one phase causing a shut down as i am told that the high load is aggerated across the three phases. I see there is an LED Alarm switch condition but cant find any detail on it. Can anyone confirm that this will trigger the switch when any of the LED alarm states is triggers on any of the 3 inverters. ie Low battery, Over load or high temp. This would be perfect if it does.