Was installing the new Pixhawk on a plane and was using the 3DR power module to power the Pixhawk. I also have an ESC (w/BEC) and 4 servos to drive around. Now i noted that without the ESC connected the Servo rails were powered with the 3DR Power module. This leads me to 2 questions :
A. If i connect the ESC to the Servo rails, will the PMU power not conflict with the BEC and damage either the BEC or PMU ? Or are these diode protected to avoid reversal of current ?
B> Pixhawk advertises that it has redundant power supply. However I am not sure how this helps. If my ESC's BEC dies out. Then the servos will be driven by the PMU power supply, which is clearly indicated that it should NOT be used since the PMU is not intended to drive the servos.
In my earlier APM 2.5 and 2.6 installs the power setup was explained very clearly and I was able to separate out the servo rail power from the main board power .
Not sure how things are wired here and what would be the best way to install the PMU and ESC/BEC power.