Problem with my throttle setting

John Doecliff

John Doecliff

Well-Known Member
Bought a used turbo ace X-830 with a Naza M V-2 Controller. Inspected everything, preformed bind, calibrated compass, programmed Spectrum DX-8. Everything seems to work just fine except the throttle control. I tethered it to a brick and did some testing with it. After enabling the motors you have to go above 50% stick position to get the motors to energize and going below 50% stick position causes them to cut out. When they are at 50% stick position they are at a very high rate of speed. If I really work the throttle gently I can get them down slightly below 50% without cutting out. I'm trying to figure out if this is a radio programming problem or an ESC programming issue.

On the DX-8 my throttle curve is linear from 0% to 100% throughout the travel of the stick. On the servo set up the throttle travel is 100% and 120% I set it this way because that was what was giving me full travel when hooked up to the DJI GUI for the Naza V-2. When tethered all other stick commands appear normal. It's just that the motors cut out at such a high throttle position. I want my throttle to have full range not 50% to 100%. Any suggestions would be appreciated.
 
Have you flown another model with the same tx? It may be worthwhile to set up a new model in your tx and play with the curves to see if you can correct the way throttle is applied. Before that, definitely re-calibrate the ESCs though just to ensure that isn't the issue first. That's all I can think of quickly off the top of my head. If I can come up with something else, I'll post again.

When I had a Turnigy 9x tx, I had similar symptoms at one point, but it had to do with the actual sticks/gimbals not making good contact, so throttle signal actually wasn't being sent (based on the output on the tx showing throttle position). I doubt you have that with a DX8 since the quality is much better and also you probably would have figured that out pretty quickly anyway.

If you figure it out, let us know what it was.
 
Yes My DJI 450 runs from the same transmitter. I think this quad was a RTF package with a different radio so I am going to calibrate the ESC's . I will let you know how it turns out.
 
Ok I finally got some time off work to test fly the turbo ace X-830. I calibrated the ESC'c and an email exchange with wow hobbies claimed that it was just the nature of the naza v-2 to require that much throttle input to run the motors. When I had it tethered to the ground it seemed like the minimum throttle would be too much and the quad would rise rather than hover. I am happy to report that it flew just fine and hovered well. My fears were unfounded. I was really worried because this was a used quad and I could have gotten screwed. The components alone were worth more that I paid for the whole thing but I was still concerned. I got a naza m lite and v-2 both with gps and 2-8 channel receivers with dual antennas for my radio plus 2 quads and 2 gimbals and a bunch of spare parts. Now I will reinstall the gimbal and figure out a better way to secure the battery. The landing gear on this quad is a pathetic joke, it's very weak. Still, all and all this is a good next step in the learning process. Thinking about a tarot hexa quad for my next build.
 
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