Pixhawk 2 No Output from Servo Rail

Hi all,

I have recently purchased Pixhawk 2 from Unmanned Tech. I am using ArduPlane 3.8.2 and Mission Planner 1.3.49 . I have some problem with its Main Out and Aux Out ports. I also have issues with the Sbus signal being seen by Pixhawk.

Tx : Futaba T8J
Rx: Futaba R2008SB
Power Module is connected to 11.1v lipo

The servo is not moving. I checked that everything is functioning well. There is power on servo rail but it did not gave any signal output to the servo.

Is there something wrong with the software or did I missed anything?

Thank you in advance for your help.

The issue is likely due to the fact that you are not using the safety switch, as by default all outputs on servo rail are disabled untill the safety switch is pressed. You can disable this via the settings but best practice to use this.

Hopefully that will solve the issue :slight_smile:

Hi Alex,

Thank you very much :smile: At last we got the servo rail works!
Yes. I am not using the safety switch. Your reply made me looked again at the Full Parameter List and yes, we missed something here. For others who are facing the same problem as mine you can disable/set them to 0 all this 3 parameters if you are not using safety switch:


1 Like