Are the main power port and the servo rail GRNDS connected or are they isolated completely?
I'd like to know if I will have a ground loop with the attached layout.
Curent sensor powering pixhawk and a UBEC powering servo rail
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@Joe,
I have tried using 6vdc UBECs with the Pixhawk servo output power rail and I do not recommend it. Since the Pixhawk will use the power on the servo output power rail as a secondary power source, I recommend keeping the voltage below 5.5vdc and if you are running servos on the servo output I recommend installing the 5.6vdc zener diode fix Link
Voltage spikes above 5.5vdc on the servo output power rail can cause the Pixhawk to reset and a subsequent loss of control.
Regards,
TCIII AVD
Which way is the diode installed?
You're right, I missed thinking about the voltage rating of the 6V UBEC. I am using a 5V UBEC in the same configuration as the Anaconda Diagram (except I am not running servos). And so you are also right about the Zener diode installation when using servos. Takes a village!
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