@DroneUnit wrote:
Hi All,
1600mm Flat Octo / 55lb
Really struggling to figure out what is going on here. Ever 5 startups or so, the aircraft goes crazy in Altitude hold. It rapidly goes up and down like 10 meters. My initial instinct means this is due to vibration, and while I do know there is quite a bit of vibration, VIBE shows the Z still appears to be below 30. 4 out of the 5 times after powering up it files perfectly though (same setup) which is the confusing part to me. The only thing that does worry me is VIBE.CLIP2 is showing crazy clipping. I am assuming this is due to high Z vibration on IMU2 (third IMU)? The attached log is one of the flights where it goes crazy on me.
One thing I think I have noticed about the flights that go crazy is as soon as I take off I get the warning:
Critical: NavEFK2: lane switch 1
Warning: EFK primary changedEFK2 is set to use IMU0 and IMU2
Does this warning mean it is switching to using IMU2 for EFK? (which I think may explain the aircraft going crazy?)Any ideas?
Log389 (Crazy altitude behavior): https://www.dropbox.com/s/jl8kuvtvn1entzr/00000389.BIN?dl=1
Log386 (Good altitude behavior): https://www.dropbox.com/s/ez8ll3ij7xwel3q/00000386.BIN?dl=1
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