Counterclockwise rotation on Z axis

#1

Hi all,

I’m trying to set up my drone based on PX4 on a DJI F450 but I’m still experiencing a counterclockwise rotation. It is slow but continuous. I already calibrated the sensor many times but I’m always experiencing this behavior. I already tuned the yaw pid component. I tried also the GPS but is always the same.

https://logs.px4.io/plot_app?log=75c15b90-da29-466b-aa0e-07a77cd8b8b1

What can I tune to fix this issue.

Thank you Ale

#2

Hello

Generally, the F450 are use with DJI autopilote (NAZA V2).
With the Pixhawk PX4, the motors are an another configuration.

Have you Apply the right airframe reference ?

https://docs.px4.io/en/airframes/airframe_reference.html

(Sorry Is not your subject !!)

#3

Thanks Serge. Yes I choice the X Frame. The Fly Controller is oriented with 0°, but it is set back from the center of gravity (2/3 centimeters at most). This can influence the hovering also in position fly mode?

#4

Hello Allessio

I use the Autopilot Pixhawk 4 wich not center. The Autopilot and the GPS must been calibrated together.
The IMUs are inside autopilot (in front) and GPS antena (in rear)
I have been configured and calibrated with QGC.
https://docs.px4.io/en/config/flight_controller_orientation.html

In “position mode”, le Quadcopter is very stable.
https://docs.px4.io/en/flight_modes/position_mc.html