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12-14-2012, 02:29 PM | #1 (permalink) |
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Join Date: Dec 2012
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Problem with NAZA-H
Hi peoples,
I have a trouble wiht my NAZA-H, it's the first time I make a setup with it, and what's strange, is that when I turn it on, in manual mode the swashplate is completely incorrect, the controls are right, but the answer to movements is very slow. Also the neutral position is completely incorrect, when I switch ti ATTI the swashplate go immediately in neutral position, and the answer to movements is fast, is that correct? For better understand the problem, please check this video: https://vimeo.com/55634114 pass: freak Thanks a lot for your help! 'flyer |
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12-14-2012, 04:21 PM | #2 (permalink) |
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In manual mode you will get no correction to movement. It is manual and you control the swash. In ATTI and GPS the controller compensates for the movement. It looks normal to me. Did it react correctly in the feedback section of the Assistant? If so it looks like you are ok.
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AMA #844172 DJI S1000 Lightbridge Zen for 5D, S900 LB Zen for BMPCC, DJI Phantom 2 Vision +, P2Z2 with Data Link, P2Z3 with LB DJI Forum Support |
12-14-2012, 04:26 PM | #3 (permalink) |
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Tahoe - is this how yours behaves?
Normal FBL controllers (eg beast etc) are essentially manual mode, but still correct against movement... That is after all the entire basis of a FBL system... Gyro detects an un-commanded movement, moves servos to compensate... It's how it replaces the stabilising effect of a flybar. If I move any of my other FBL controlled heli's around, the swash reacts to the movement... To see no movement in manual mode strikes me as odd. The swash being so far out of position is also bizarre - can you confirm this is how yours is? I would help, but mine is still in the box and I haven't even come close to setting it up yet.
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12-14-2012, 04:38 PM | #4 (permalink) |
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Mine reacts exactly as your video shows. No movement in Manual and compensation in ATTI and GPS. I understand what you are saying. I have owned different FBL controllers. The DJI units are different. It took the guys at the AMA field off guard because they were expecting the same thing and when it did not do it they thought something was wrong. It wasn't.
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AMA #844172 DJI S1000 Lightbridge Zen for 5D, S900 LB Zen for BMPCC, DJI Phantom 2 Vision +, P2Z2 with Data Link, P2Z3 with LB DJI Forum Support |
12-14-2012, 04:44 PM | #5 (permalink) |
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That's useful info...
Can't really wrap my head around why the swash behaves like that in manual though, especially with the big tilt back and left. You would have thought that would instant tip the heli when you spool up.
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Blade mCP X - Brushless, XP-7A, HP05S Gaui X2, BeastX/Scorpion 3400kv/YGE-30A/GS-093/DS95i Align AH-1 Cobra (T-Rex 500) Align T-Rex 600 EFL Pro, SK720/600MX/YGE-90HV/BL9180/BL9188 |
12-14-2012, 05:08 PM | #6 (permalink) |
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Hi Tahoe,
so another question, the NAZA quick start guide suggest to do the maiden flight in manual mode, to be honest I'm afraid to do it showing how the swashplate is moving, what happen if I take off in ATTI, and then once in flight I switch to manual? |
12-14-2012, 05:15 PM | #7 (permalink) |
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Remember the Naza has a barometer. It knows when you are on the ground and when you are in the air. Most other controllers do not. The WKH does not react at all unless you are connected to the Assistant in test mode or flying. I remember with my 700 part of the ground test before flight was to check the movement of the swash on the ground before takeoff with the Gyrobot and the HC Rigid.
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AMA #844172 DJI S1000 Lightbridge Zen for 5D, S900 LB Zen for BMPCC, DJI Phantom 2 Vision +, P2Z2 with Data Link, P2Z3 with LB DJI Forum Support |
12-14-2012, 06:42 PM | #8 (permalink) |
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When your unit is set to manual mode..I have to assume it will function as a straight flybarless controller.
That being said, reaction to any stick input will be extremely slow due to the fact the helicopter is not in the air and the controller is not "seeing" any correction to its action . Also the swash plate correction is dependent on your FBL gain settings.
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12-14-2012, 10:09 PM | #9 (permalink) |
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Wow, I don't know much about that system, but it sure seems weird to me. In particular, the lean the swash takes in manual mode.
Are your trims centered? I imagine they should be. When you switch to manual mode, does the swashplate slowly tip over, or it moves suddenly? I didn't hear the servos jump so I think it happens over 1-2 seconds? When you move the stick in manual mode, am I seeing it right, that the swash reaction is sort of slow? To me, it almost seems like they are controlling the swash purely with I-term, and no P-term. If your trims aren't centered, that would explain why it slowly tips over.
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-Rob Former Managing Director of Maxxum Robotics Inc. |
12-15-2012, 12:12 AM | #10 (permalink) |
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new video deom
Here another small vid about what happen:
https://vimeo.com/55658565 pass: freak I'm sorry for the quality, I've done it with iphone... If you confirm me that is completely right, I will try the maiden on monday. |
12-15-2012, 12:20 AM | #11 (permalink) | |
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Quote:
[ame]http://youtu.be/HiAEJ9XVkYs[/ame]
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Align 450, Align 700e, SK 720 GPS, DX8, T14SG |
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12-15-2012, 12:34 AM | #12 (permalink) | |
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Quote:
The neutral position of your swashplate in manual mode shouldn't be like that. I would go through the setup wizard again to check everything.
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Align 450, Align 700e, SK 720 GPS, DX8, T14SG |
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12-15-2012, 03:39 AM | #13 (permalink) | |
Join Date: Jun 2008
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Quote:
I noticed the radio and tray. I have often thought of using a tray. On a later video if you could include a brief shot of how the straps are configured for the tray and how it is held stable. Nice work and good to see the assistance with the setup. Sorry to interject the extra question. Mike |
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12-15-2012, 04:46 AM | #14 (permalink) |
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Wesley - your swash looks much more like I would expect. Clearly there is something wrong with FPVflyers...
Does yours react to movement of the heli in manual mode? Thanks for posting the video. By the way, the way I always take off with my other helis is that I spool up in idle up on the ground then once I've reached full headspeed I lift off. This way would allow you to take off in Atti mode if you switch once full throttle has been achieved on the ground. I was curious as to why DJI say it is currently not possible to do so... The only catch I could see is that unless you get it almost to hover pitch on the ground first, then when you switch out of Atti and back to manual the heli would drop a bit.
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12-15-2012, 07:01 AM | #15 (permalink) | |
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Quote:
Either that, or the center stick position is not being remembered properly in the Naza. Something like that it seems. Wesley, could you do a short video, in manual mode for me? If you could get the Tx and the swash in the same frame. Then *quickly* push the cyclic to one side, and hold it. Then quickly push it to the other side, and hold. Do that a couple times. Just trying to figure out what they're doing. It looks an aweful lot like how I had Arducopter working this summer.
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12-15-2012, 09:17 AM | #16 (permalink) | ||
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Quote:
Quote:
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Align 450, Align 700e, SK 720 GPS, DX8, T14SG |
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12-15-2012, 09:18 AM | #17 (permalink) | |
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Quote:
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12-15-2012, 09:53 AM | #18 (permalink) |
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That sounds more like behaviour I would expect to see in manual mode.
Interesting about the bounce - sounds like the same thing the Naza-M does sometimes when auto landing. Perhaps it is best to wait for a firmware update before trying it lol
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12-15-2012, 12:24 PM | #19 (permalink) |
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Yep. Just trying to gauge how it's working. I'm surprised if the control algorithm is as simple as it appears to be.
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-Rob Former Managing Director of Maxxum Robotics Inc. |
12-15-2012, 01:07 PM | #20 (permalink) | |
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Quote:
[ame]http://youtu.be/dVSVF_LeymQ[/ame]
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Align 450, Align 700e, SK 720 GPS, DX8, T14SG |
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