I will combine 4 ac/dc converter ( 1000W ) by using parallel operation mode to create 4kW unit. I will add 4 led to observe converter signal health. There are digital output including POWER ON SIGNAL, AC GOOD SIGNAL and POWER OK SIGNAL. I added related piece of datasheet. I want to ask that can I use these digital outputs to drive directly 5V LED to determine DC output is on or off? Or Do I have to use a external microcontroller (like Arduino) to determine HIGH/LOW state and drive LED by using external microcontroller(like Arduino) digital outputs? And Which of ac/dc converter digital outputs(POWER ON SIGNAL and POWER OK SIGNAL) should I use to determine that output dc is OK? Can you advise me a way ?