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Home✈️AircraftMulti-Rotore-Multi-Rotor Main DiscussionDJI › NAZA-M V2/F550 tips on lift off
07-04-2014 09:43 PM  6 years ago
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TRACERBOB

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NAZA-M V2/F550 tips on lift off
I have this on a Flame Wheel 550 with the white landing gear installed. Here's the issue. When I power it up I wait for the GPS lock and all the LED lights to clear. After I initialize the motors and advance the throttle it tries to tip over hard to the right. It's like the right skids are stuck to the ground (I'm flying from a concrete pad)or the motors on the right side are losing power. I thought it might be a problem with mode ATTI so I switched to manual. No change. This is my first real multicopter so I have no clue on how to go about diagnosing what is happening. Any ideas on where to look. It was a pretty short maiden flight but at least it's in one piece
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07-04-2014 11:12 PM  6 years ago
balsapro

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Are the props on right?.Build the Best, Fly the Best, Crash the Best
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07-04-2014 11:47 PM  6 years ago
TRACERBOB

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That's a real good question. I've checked them several times so I assume the motors and the props are in the correct arms. I need to check again but I'm sure they're spinning in the right direction but what I saw today casts doubt on that.Life is hard. Harder when your stupid
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07-05-2014 12:00 AM  6 years ago
balsapro

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There are pusher and puller props so make sure you have the right kind going the right direction.Build the Best, Fly the Best, Crash the Best
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07-05-2014 01:53 AM  6 years ago
TRACERBOB

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I'm starting to think the gyros are reversed for some reason. Looking at my channel monitor, the aileron and rudder sliders move to the left when I give right stick. The "norm/reverse" buttons are set to norm. If I set A,E and R to reverse, the motors won't initialize.Life is hard. Harder when your stupid
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07-05-2014 04:40 AM  6 years ago
balsapro

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yeah the sliders have to correspond with the stick movement... something must be reversed.

what radio are you using?
Build the Best, Fly the Best, Crash the Best
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07-05-2014 01:01 PM  6 years ago
JTorsrud

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Reveral Problem!
I had a similar problem.

Another area to check after you reverse the A, E and R is the Channel reversal in your radio.

I had everything on my F550 setup correctly and could not get the motors to start. (I'm a little balder now, scratching my head) Anyway, someone on this forum told me to check my reverse servo switches on the transmitter. I reversed the Channel 5 (I think) and then proceeded to initialize and the motors fired right up.

Another check is to start the motors and keep it on low power so it won't lift off and the motors don't quit. Then run your hand over the top of the ship and make sure the Air is not blowing upward. All the Props should be pushing Air DOWN. Sounds silly, but if something is reversed this can happen.

And of course check all the functions in the NAZA software.

If you need more help, PM me and I'll fire mine up and look at my NAZA software and we can walk thru the process.

Take Care.

Jeff
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07-05-2014 11:22 PM  6 years ago
TRACERBOB

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what radio are you using?
JR 9503

I did the prop test and all are spinning in the correct direction.

I tried reversing the channels within the radio. Got the sliders to to go in the same direction as the sticks but then I could not start the motors. My laptop is in need of a charge now so I'll get back to it shortly.

I love a challenge but this one tests me to aggravation. Watch it turn out to be something basic.
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07-07-2014 11:32 PM  6 years ago
JTorsrud

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TRACERBOB
I sent you a PM.
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07-08-2014 02:49 PM  6 years ago
ErichF (RIP)

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Is the NAZA MC mounted backwards? Just gotta ask, I've done worse
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07-09-2014 02:06 AM  6 years ago
TRACERBOB

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No, that's the first thing I checked.

OK, I got the AIL slider to move in the same direction as the stick by reversing the channel on the radio. When I initialized the motors they started up this time. That's a good sign. Now on to the ELEVATOR slider. When I push the stick forward, which direction should the slider go? Of course I won't know anything until I fly it to see if it's right.
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07-09-2014 11:01 PM  6 years ago
TRACERBOB

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Test flight. Still wants to tip to the right at lift off. I'm starting to think there's something wrong with the main controller and I'm contemplating sending it back.Life is hard. Harder when your stupid
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07-13-2014 01:22 AM  6 years ago
rwilabee

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Yes I have seen that happen when the ESC's are not plugged in to the correct ports on the Controller
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07-13-2014 01:28 AM  6 years ago
ErichF (RIP)

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I would hope that would be identified as soon as one performed the motor test procedure, which he said he did.

If the thing is mounted correctly and passed the motor test, the only thing left is a faulty MC or possibly ESC.
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07-13-2014 01:50 AM  6 years ago
rwilabee

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He said prop test that they were spinning in the correct direction. It depends on how it did it. You could just start the motors going and have them set to turn correctly. If he actually made sure using the motor test besides them spinning correctly that motor one that starts is actually on the correct arm and so on then he is ok as far as that goes. I have seen people just do a start and figure that since the props are all spinning correctly that the ESC's are plugged into the correct ports on the Controller.
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07-13-2014 09:48 PM  6 years ago
TRACERBOB

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My F550 is using the new E300 system with left and right hand threaded props so if something was in the wrong place it would throw a prop. I did the motor test per the manual (no props installed). I checked the rotation like this. For example, boom 1, front right side, the motor is CCW. As I clicked on the button for motor no. 1 I touched the right side of the motor to feel as well observe the rotation.

I would hate to think that my hardware is defective. What a hassle that would be.
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07-14-2014 01:39 AM  6 years ago
rocket_33

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Are the motors all coming on correctly and up to speed before liftoff? Sometimes you have to increase the idle speed (sorry if wrong term, I am not in front of the software at the moment).
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07-14-2014 12:53 PM  6 years ago
TRACERBOB

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As far as I can tell, yes, they are all up to speed at or before lift off. I'll see what I can do as far as reading the RPMs with a tach.Life is hard. Harder when your stupid
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07-15-2014 02:01 AM  6 years ago
TRACERBOB

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Well, they all tached the same. I put one on 4140 and the rest of them were in sync.

I just don't know. The tech rep from the place I bought it from asked if I calibrated the ESC's. To the best of my knowledge they don't need to be calibrated.
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07-18-2014 06:48 PM  6 years ago
TRACERBOB

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One thing comes to mind. I have the PMU mounted on the bottom of the top plate in close proximity to the main controller. Could this effect the gyros? It's mounted overhead and to the left of the controller.Life is hard. Harder when your stupid
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Home✈️AircraftMulti-Rotore-Multi-Rotor Main DiscussionDJI › NAZA-M V2/F550 tips on lift off
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