Hi everybody,
I'm hoping someone can tell me what's going on. I'm currently working on my first quad build. I've wired up the quad and I'm at the vehicle setup wizard step. I get to the step where you plug in the battery for the first time to calibrate the ESC's. For some reason, when I plug the battery, the fourth motor(looking down at the quad, it would be the rear-left one) keeps burning up. I burned the first one, then ordered a replacement and that one burned up too. All other motors are fine and I'm able to calibrate them. I've checked the voltages on the power distribution board and the voltage coming out of the ESC that corresponds to that particular motor and they seem fine. not sure what's going on. Any advice would be greatly appreciated.
Right after I typed this, I went back to my quad and decided to do a little more troubleshooting. Turns out I was wrong about the ESC. I unplugged the burned motor and one of the good motors from their respective ESC's, then I plugged the battery into the power distribution board and measured the voltage coming out of each ESC. Turns out that the functioning ESC outputted 0 volts, while the faulty ESC outputted 8.3 volts, which is the source voltage. Looks like the faulty ESC is just outputting whatever the input voltage is and is not regulating it at the output. Has this happened to anyone else, and is my analysis correct?
Thanks