After Switching To Autotune, Copter Disarms After a Couple of Seconds

ArduCopter
1

The telemetry modems I ordered from Holybro arrived today and I installed it on my other Tarot quadcopter.

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After a successful connection to Missioj Planner on my laptop I confirmed that there is no interference with the GPS like I had with the other 500 mW telemetry unit on my other Tarot quadcopter.

Next, I removed the propellers because I wanted to arm and run the copter and switch from Stabilize to Autotune. When I did so, Mission Planner indeed confirmed that the mode had switched to Autotune but a couple of seconds later, the aircraft disarmed itself. I’m afraid to try to fly this quad and switch to autotune until I understand why it disarmed itself.

Could it be that the copter sensed that it was not flying?

2

Yes. It automatically disarms in that case.

3

Not only an invalid bench test, but switching directly from stabilize to autotune is not a typical scenario at all. Documentation here:

4

@FossilRider give the AMC another try, you are more experienced now and the software has also matured since the last time you partially used it.

5

Actually, my objective was to see if the copter would switch to Autotune, which I confirmed did happen. Previously, with my other Tarot quad, when I switched from Alt-Hold to Autotune, nothing happened. I have now since confirmed that both aircraft will change modes.

6

I see no value in using it at this time. I have two quads that are flying and once I successfully run autotune on both I will be satisfied.