Servers by jDrones

250 Quad with Pixfalcon help


(Henry Scheun) #82

Hi Leonard,

Sorry to bug you, but can you please suggest the settings for a Flamewheel F450 Quad and for a F550 Hexa of the following parameters:

INS_GYRO_FILTER -?
INS_ACCEL_FILTER -?
MOT_THST_EXPO -?

and the limit for these parameters
ATC_ANG_PIT_P -?
ATC_ANG_RLL_P -?
Is 15 to high?

Thanks

Henry


(Leonard Hall) #83

Thanks all for the buzzer issue. The first time we saw this it was on a iris where the buzzer caused both IMU’s to go bad. Here we are obviously getting just one because that one is in just the right spot on the board.

Great info, thank you!!!


Position Hold causes uncontrolled fly-away with climb at max current
Need help! Severe shaking on roll axis
(Leonard Hall) #84

Hi Henwilsch,

I would go with:
NS_GYRO_FILTER -40
INS_ACCEL_FILTER -40
MOT_THST_EXPO -0.65

and the limit for these parameters
ATC_ANG_PIT_P -10
ATC_ANG_RLL_P -10

As safe parameters. I would consider dropping the filter frequencies to 20 and 10 on the D filters if you find you have excessive noise issues.

Sorry for the slow reply I have had a crazy few months.


(Paul Atkin) #86

Hi Leonard,

I would suggest to move core recommendations from this thread straight into the wiki for arducopter into a separate section on how to setup pids for a small racer pixhawk based model.

i went into almost week long ordeal fighting same exact issue and found this thread just thx to pure luck.

https://discuss.ardupilot.org/t/need-help-severe-shaking-on-roll-axis/29823/9

Your recommendations were the key - on filtering and startup pids. as i only dealt with large and medium models before i could not figure out at all what was the issue with oscillations and jigsaw output on RCOU.

Thanks again for your help and support!