Attitude and GPS sudden ascent

[Tahoe Ed]

Dark here too, but still 105 and not fun to be out in.

 

[Explorocam]

Dark here too, but still 105 and not fun to be out in.

Ok, Did it. for the switch for Manual, Attitude & GPS [Manual = no light, Attitude = Yellow flashing, GPS = green flashing]
Switch for IO, no lights what so ever.
But the software says the switch is being toggled.:dejection:

So basically, no lights for IOC, when I start I get a bunch of red lights that decrease in number until finally I get some green flashes that stop and then disappear. But nothing seems to happen in IOC, if in manual no lights when IOC is toggled. If in Atti I get the same yellow flashing light with no change in the yellow light when IOC is toggled and if in GPS while toggling IOC green light continues to flash with no change. It's as if there is not input to the naza when the IOC 3 position switch is toggled.:upset:

 

[sixback]

Don't you have to be at least 10 meters from your quad for IOC home lock to function?
Are you waiting 30sec at the start to set the initial home position ( flashing greens )?

 

[sixback]

Don't you have to be at least 10 meters from your quad for IOC home lock to function?
Are you waiting 30sec at the start to set the initial home position ( flashing greens )?

Sorry, I see you have home set

 

[Stratrascal]

It sounds like you are going into fail safe.

 

[Explorocam]

I watched a video where the guy toggled the IOC switch a few times prior to take off. One set of toggles did heading Lock and some other set of toggles did Home Lock. I just thought the Naza recorded where it was taking off from automatically. I guess this is not the case. Can someone help me understand how to arm or initiate the IOC prior to launch?

 

[Totality]

It sets home automatically. You can toggle modes quickly to set a new home afterwards for example in flight.

I would recommend reading the GPS part of the manual as you'll learn some new things. It's worth a read.

 

[Explorocam]

yes or add a bigger camera. at one point the 3s 10" runs out of game so be careful. it'll barely want then goes from flying to a descent with no choices but down. if the thing feels heavy, keep it low and over flat ground

it would be a parralel connection. i take deans and solder them into these kinda things, no wire, just the connectors like this, ben the paralel ones together to the opposing sides ground side, top + side is just one big slab of solder

Ok, I just tried the dual packs 2 X 3s 5000mAh batters. I get longer runtime; 15 minutes. But the sudden ascent is still occurring in fact it seems to be the same or maybe even a little worse. The sudden drop after going back into manual is definitely worse due to the extra weight. Yesterday I tried a friend's 4s 4000mAh battery and the sudden lift in Attitude/GPS was not as bad, in fact almost not noticeable. But the 3s is really quite dangerous. Are you guys sure there is not something I miss where were I can adjust for that sudden lift?

 

[ksrimoungchanh]

post some videos if possible.. it would help.

KS

 

[ksrimoungchanh]

could the barometer be off? or going bad to fluctuate altitude control? Does it drop then catch it self or gain's then stops as if it was trying to ascend and descend to a mark?

Regards,

KS

 

[kloner]

if your in manual and flip to atti, it goes down with the extra weight more than if it's lighter? Are you sure the throttle doesn't have any trim and that you put it at exactly 50% when you calibrated it?

everything your seeing is exactly opposite 2 of them here that are over propped with 9's 1000kv and on 4s, they weigh 2100 and 2300grams. They hover in manual at 1/3 thorottle and atti it hovers at mid stick. if i hover in manual and just hit the switch, the throttle is in an ascend spot, 1/3 stick. if i add the second packs, manual hover is exactly at 1/2 stick and when it's flipped to atti, mid stick is already being touched, hovers

If you wanted to get to radio programing, you could make throttle curves for each mode like manual mode move the midstick to 30% and leave the mid stick at 50% for the atti and atti gps mode.

Some radios might need to be in heli mode to see throttle curves.

 

[Explorocam]

could the barometer be off? or going bad to fluctuate altitude control? Does it drop then catch it self or gain's then stops as if it was trying to ascend and descend to a mark?

Regards,

KS

It raises and keeps going, If don't pull back on the throttle it will just keep getting higher. When I switch back into manual it will drop. If I don't catch the throttle it will just keep dropping and hit the ground. I'll try and post a vid. I'm not sure the barro is bad as it worked better when I tried my friend's 4s. Plus it worked fin until I switched to the Grapners.

 

[kloner]

so that's oppositte i was thinking.

your asking for it taking off with it like that. your already to heavy for the setup. I'd swap over to 9" props and 4s or find some stronger 3s motors. is it the 2212 still? whats it weight?

 

[kloner]

if you wanted to make a throttle curve still, try 60-70% midstick throttle, look it up in your manual for your transmitter

problem with the way it is it's gotta be sluggish and would have alot of tendency to go down better than up. Theres not alot of reserve throttle with it the way it is. I've flown mine like that at first messing with packs. one time i put too much weight and it barely got up and flew but was pretty smooth, all AP like but as soon as voltage went away, it got into an iminent going down thing no throttle could stop. Mailman did it right after i did. kids learnin and all......

 

[Explorocam]

I'll try the transmitter adjustment. For now, I can't really get new motors and props until I get some more cash. That being said. Things seemed to be a little better with a 4s.

 

[Explorocam]

I went back to one 3s 5000 and set my mid throttle curve to 65%. I still get some raise in Attitude and a little drop after I switch back to manual. But, it's not as bad as it was with 2 X 3s 5000s.
So Kloner, you think I should switch to 4s and go to a small prop size. I was really hoping this was something I could set in the DJI program. This would be a good firmware update. :shame:

 

[Explorocam]

I sent an Email to DJI.

"I have the F550 ARF with the Naza + GPS and I'm using Graupner 10x5 props on a 3s 5000mAp battery.[FONT=verdana,sans-serif]Since I switched to the Graupner props I am having one little problem. Whenever I switch from Manual to Attitude mode the F550 will suddenly climb altitude, I have to lower the throttle to stop the climb or it will just keep ascending. When I toggle the switch from Attitude back to manual the F550 will suddenly descend (loose altitude) and if I don't raise the throttle back up the F550 will crash into the ground.[/FONT]
[FONT=verdana,sans-serif]However, if I use a 4s battery 5000mAp the problem of the F550 suddenly ascending in attitude and descending in manual goes away."

DJI's reply;
"Did you re-calculate the gravity position and adjust it into assitant software?"

Is this just me, or does it seem like they missed the point? Or could the recalculation really help? All I did was change the props.[/FONT]

 

[tyor]

You write that you dont have the problem with a 4s battery. I guess the 4s is heavyer then the 3s battery. And then the cg point will change. thats why they ask about the calculation of cg.

 

[Explorocam]

You write that you dont have the problem with a 4s battery. I guess the 4s is heavyer then the 3s battery. And then the cg point will change. thats why they ask about the calculation of cg.

Oh, I see. But the reality is, the problem got worse with 2x3s in parallel.

 

[kloner]

KV = rpm per volt..... when you run 4s the props spin faster making more lift, problem is your most likely over rating the motors watts which is volts x amps. When a motor hits it's max watts, it pops like a fuse eventualy