All 4 motors stopped in mid-flight - what is broken?

[-=RAGE=-]

Hello,
all 4 motors stopped suddenly and my Invertix crashed into the ground. The battery was not empty!

And now, the Invertix does not beep after connecting the battery.

Is the nano Wii broken, or the BEC? Or something different?

[zomaar]

I would guess the bec, because everything gets the power from there.
no beeps mean not motor control, esc's need the power from the bec , if 1 of them should be busted you would still hear some beeps from the others

I got a 'new, but 2nd hand' invertix which falls from the sky too, it just freaks out mid air

[Freeskiken]

Email tech support if you can't figure it out. The service is great. Sounds like
the BEC.

[Freeskiken]

ZOMAR could it the Nano Wii board ?

[larryfl]

Same thing with me. The bec gets fried.

Don't know why????

[setishock]

Some times the worst case scenario is not figured in to the design. Meaning it all works fine until you add some other goodies on like FPV camera and transmitter, the system gets over loaded. The BEC being the heart of the system supplying power has to be rated for the absolute worst case current draw.

If you can replace that as a separate module, I would suggest getting one that is rated to supply a much higher current. Your system will only draw what it needs to run but if it needs more current to stay running, it's nice to have it on tap. Other wise the BEC gets flogged and fries.

[zomaar]

IMHO you don't need more.
Stock BEC is enough for stock gear. If they get fried maybe they should check quality


Hell, it's rated for 2,5 A @5 v that's 12,5 watt
More then enough to supply a nanowii and 4 esc's it's pure to power some ic's and minor electronics.

If you add fpv gear that's another matter....

[larryfl]

i found the issue...

looked at invertix support faq and it says if a capictor on the esc comes lose it will toast the bec...

sure enough opened all 4 up and 1 of them did break loose on one leg.....

time to solder put a new bec in and test....

[-=RAGE=-]

Thank you, all, I've found the reason for the motor cut off. The BEC died, because one capacitator broke off from one esc.

Never crashed. Foam was under each esc and lot's of rubber between the cap. and the circuit board.

[zomaar]

At least the invertix is a lot of fun too fly ��
3mins of Whoooooooohaaaaaaaaaaa

Only took invertixes to the field yesterday and had fun. +15 flights probably. 1 crash = 2 props.

I seem to get issues with the motors (or esc) after a lot of crashes.

Got a 2nd hand invertix (damn this invertix really had a bad life, the amount of crashes on this one is skyhigh ) anyway I got it knowing it had issues, crashed it twice when I collected it (broke arm and 2 or 3 props)
Agreed with the vendor I would have a look and pay for it when I found it. Otherwise I could return it.

Anyway it had 1 motor that just made the invertix crash. The windings in the motor seem to be damaged because of crashing. And quickly reversing it probably made the motor arc and then it went down.
Swapped motor everything fine. So vendor agrees to lower the price with the amount of a motor so good deal I guess.

Notice the wear on the motor thread this invertix had a lot of prop switches.

Picture of the messed up winding

On my other invertix one of the motors is sometimes 'slow', its like the timing is messed up, on a reverse and if you are close too the ground, you do not have much time to counteract this. As said had 1 crash because of this yesterday, 2 props so just swapped and finished the battery

So my wish for a v2 invertix would be closed motors, so dirt can't get in so easily.

[-=RAGE=-]

After a closer investigation, I definitely can say, that there was two cold soldering joints.
I've re-soldered the capacitor, applied some hot-melt adhesive and now I'm waiting for a new BEC and two arms, to get the Invertix back in the air.