If a power failure occurs during operation of the YS1700/YS1500/YS1360/YS1350 in Cascade mode (C) or Automatic mode (A), it goes back to Manual mode (M) after power is restored.Is there a way to make it return to the same mode as before the power failure?

By default, if power is restored following an outage of 2 seconds or longer, the unit resumes operation in Manual mode (M).
Change the setting value of [CONFIG1] > [start] to [AUT].