MR60

Throttle dips (cuts out) erratically at low throttle input (in between around 10-25%)

Posted by Hugues on February 17, 2013 at 12:36pm

Hello,

I noticed some strange short throttle drop outs by displaying a graph of the Throttle IN and Throttle OUT data (from the mission planner log browser). It happens when the throttle stick is quite low (I would say around 10-25%). The throttle out goes shortly to zero while throttle in keeps its value. It appears as short cut outs spikes.

Does anyone had the same issue ?

(I remember reading something about PPM synchro issue on the forum but cannot find it back)

Config : APM2.5, quadcopter, firmware 2.9.1

 

Thx

Hugues

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Replies

  • Developer
    Randy February 17, 2013 at 5:01pm

    My guess is that you've got the throttle right at the edge of deadzone so a 1 pwm change up or down will cause the throttle to cut-in or out.  You can probably prove it by adjusting the RC3_DZ parameter up and down and you'll see it happens at a different throttle stick position.

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