Naza M Lite flipping issue

[zmae2g]

Evening all...
Not sure if this is the right section for this, but here it goes.
I have the following setup:
Alien 560 frame
Naza M Lite
TURNIGY Plush 30amp ESC';s
Turnigy NTM Prop Drive 28-30S 800KV / 300W Motors
Turnigy TGY-i6 AFHDS Transmitter and 6CH Receiver

Heres what I have done.
Everything is installed (naza unit)
All ESC';s are calibrated and all motors spin up at the same time.
I have set up the Naza as per the instruction (told it that I have a quadcopter)
All the motors spin in the motors spin in the correct orientation.
All the props ar on the correct way (clock wise, counter clockwise) and on the correct motors.
I';ve done the compass calibration (naza dance)
I have the unit in GPS mode (I';ve also done Altitude & Manual mode) with all the satellites present.

Now here';s what';s going wrong....
When I go to launch the quad keeps flipping over? and this is when its sat on the ground?

I arm the motors and they all spin at the same time and at what seems to be the same speed.
I then apply a little throttle. You can visible see the aircraft create lift.
Then apply a little more throttle and the back of the craft flips over the front.

I have tried arming then applying a continual amount of throttle... same thing happens.
I even tried arming then applying 3/4 throttle... the same thing happens and screw up a set of props?

PLLLLLEEEASSSE can some one advise whats going on.

Cheers
Zane

[rsmith21]

What mode are you using, I have mine in GPS to acquire the satellites when all ready I change to ATTI mode for take off, I also had problems if I left it in GPS mode.  Once in the air you can change to GPS mode as soon as you like.

[Friskle]

only ever lifted off in Attitude Mode with both my Naza`s, that has nothing to do with it, it is still aquiring sats while sat in attitude mode just the same.

Out of interest, are you sure that all sticks are moving the sliders in the assistant the correct way ?

[Digit]

Check that the ESCs are corrected correctly. ESC 1 to channel 1, ESC 2 to channel two and so on.

[Hands0n]

Most likely issue is that you';ve got the motors rotating the wrong way.  Check carefully against the Naza documentation (the DJI Assistant tool has diagrams) - take the props off before you do this!. 

Could also be that the ESC need to be calibrated to your TX/RX set up. If they';re not equal then you';ll get odd behaviours.

[zmae2g]

Afternoon all,

I';ve checked and double checked the rotor rotations and they are all correct (as per the naza setup image).
All the ESC have been calibrated and I';m confident they are all spinning correctly. Plus they all spin up at the same time.
The one thing I thought about last night, was maybe the centre of balance isn';t right.
What do you think about maybe it being to heavy on the front, so when all the motors fire up it lifts the back first and the system can';t react quick enough to get the fronts up to speed ??
I must admit I';m not likely this Alien 560 folding frame. Everything seems to flex all over the place.
And balancing the thing is a bloody nightmare because all 4 arms are different weights.

Might bin it off and go back to my 450 frame or get another non-folding frame.

[BYOD]

Check the basics as listed here:

http://www.multi-rotor.co.uk/index.php?topic=17324.msg157007;topicseen#new

Let us know....

Regards

Martin

[Fletch]

Photos always help

Stick up a pick of your frame, if you can show wiring to that helps!

Is the FC arrow pointing forwards or backwards? 
Does naza have a flight controller offset if it is in backwards? (like the naze does) if so is it set right??

[Whitelocks wizard]

zmae2g
            Have you fallen into the same trap as I did in not noticing that the Naza protocol for Motor numbering is No 1 is top right and then 2,3,4 are anticlockwise. My other two controllers were No1 top left and then 2,3,4 clockwise and I, wrongly, as pointed out by BYOD, thought that this was standard. I have rewired to the Naza protocol and have just had a successful, albeit brief, first flight.

[zmae2g]

Hey whitelocks,

I checked all the comfigs for the motors and the props and everything was correct.

So what I noticed, with the Alien 560 frame was that it flex';s all over the place.
All the folding arms weigh different amounts and vibrate way to much.
Trying to line up the motor mounts was and absolute pain in the backside.

So what did I do...

Binned it off, and installed everything back into my 450 frame.
Bosh... everything works.

So now I';ve ordered the S500 frame from Hobbyking.
I might do a build video... what do you all think?

Cheers
Zane2g

[stickboy]

Have you tried seeing how it responds to pitch/roll inputs before giving it enough thrust to actually take off?

...cuz i don';t mean to over due the topic.....but what you are describing is a problem caused by ESC being connected to the wrong output.

The frame concerns are likely nothing to worry about. Flex and vibration wont lead to a flip, and i';ve had frames that collapsed mid flight (made a K shape, one arm even swaying as I';m freaking out trying to land) and the NAZA handled it flawlessly. But yeah, definitely put up some pics/videos. Doesn';t sound like you are having a hardware problem ( ) so it';s hard to diagnose without seeing.

Also, side note.....props spinning opposite what they should results in out of control spinning on take off, not flipping. Quite an interesting and terrifying sight.

[Galifrey]

Have you tried seeing how it responds to pitch/roll inputs before giving it enough thrust to actually take off?

...cuz i don';t mean to over due the topic.....but what you are describing is a problem caused by ESC being connected to the wrong output.

Agreed!

Sounds like the pitch esc';s are reverse connected (or roll if it flips left to right).

Flip on take off could point to the FC trying to correct a tilt and sending it the wrong way which is typical of incorrect orientation/reversed connections.

[MFB]

I have exactly the same problem.  My quad (X configuration) flies perfectly with a simple, cheap HobbyKing KK type controller.  I thought I would move upmarket a little and upgrade to a Naza lite and as you describe it flips as soon as I apply power to the point of lift off. The ESCs are calibrated and the motors spin in the correct direction etc etc. I contacted DJI and they suggest that the controller is faulty however I am not convinced that there isn';t something wrong with the set up.  Did you solve the problem with your quad?

So it turns out that I had configured the motors in the wrong order and this was the problem.  I changed the order to 1 as top right with the motors numbered anticlockwise and bingo it flies perfectly.  A little twitchy on manual but so it was on the KK controller.  The thing I find puzzling is that after seeing a video of the quad flipping DJI did not know the solution and told me I needed to return the controller to Hong Kong for repair.

[apollo7]

I had this problem, i was sure i had done all set up correct, motors were spinning in right directions BUT i had esc plugs in wrong ports on Naza

[ched]

Also make sure the esc and rx plugs going into the naza are the correct way up. I seem to remember that they may be upside down to ';normal';.
I also seem to remember that naza doesn';t like esc that are oneshot. I think it';s oneshot might be another of the modes if you know what I mean.

[Revs]

If the motors are spinning up and in the right direction, it';s likely that you have the ESCs conneted to the FC in the wrong order...

[Dippi]

Hello, and sorry for joining the discussion so late.

I guess i had the same problem, the vibrations have to do nothing with the flipping.

This solved my issue, if all else is correct, then in your TX, go to the dual rate/exp settings,

i have options for channel 1, 2 and 4 in there..... in my TX, i set it at
ch1 rate 100 exp 60
ch2 rate 100 exp 60
ch4 rate 100 exp 60
also you have to check your basic gains on the assistant and the displacement settings in the assistant for you gps. All these settings influence a lot and are frame or build specific.

The s500 is an excellent choice of frame it has angled arms which give a great feel while flying, i first had a f450 which i did not like so much and moved on to s500.

If you put in a picture of your set up it is easier for people to give you suggestions.

Also every time you change the position of anything on your quad do recenter the TX in your assistant.

The battery can be a bit displaced from the centre the TX setting can handle that, but if it is at extremes it is not good.

If you need the full settings for your assistant using s500 frame, drop in a line i will send you my setting file and picture of my setup.