Hello, we have pixhawk orange cube and its servo rail is not working. We think servo rail is burning because actually we did not connect GND on the servo rail, we thought we shared GND from the power port, but we think that the problem is caused by not just connecting the signal to the servo rail (not sure).
I would be very happy if anyone with knowledge could help me. Thanks.
The servo rail is not powered. You need to connect a power source (+) to the center row of pins and a common ground.