I had a strange crash 3 days ago. I tested a new built quad copter and did some tuning flights. Suddenly the copter felt from sky. It seems that the motors very turned off for a reason. After the crash, the ESC’s (Flyduino Kiss32a) gave me with beeps this error code:" the ESC disarmed because of a too long period without a valid input signal"
After reviewing the log file I can’t really see a problem. Now I’m not sure if the problem is Arducopter or ESC related. Maybe some of you could have a look.
Thank you very much for having a look at the log file. I use a Pololu 5V 5A step down voltage regulator for powering the Pixhawk. I never had problems with this regulator. But maybe something other is wrong (wiring…)