Altitude hold on 550

[RAHCO]

Just completed my 550. How do you engage altitude hold? I have to use a lot of throttle movement to maintain any altitude. How do you engage heading hold?

 

[Tahoe Ed]

First off what controller are you using. If you are using a Naza then the answer with altitude hold is to have it in ATTI mode. It should hover at 50% throttle. There is no compass on the Naza therefore no heading hold. If you are using something else let us know.

 

[RAHCO]

Yes I am using a NAZA controller. I am in ATTI mode. I am using a DX8 Spektrum that has a smooth stick movement. When I get it in stable level hover, with hands off the throttle, it just drops. Once I let it go all the way to the grass. It sat there for a couple seconds and then started up. It seems to me it is getting throttle adjustments from the bar.... but no altitude hold. I set my vertical gain to 90% and both of the attitude gain to 90%.

On start up, the green led blinks a few times before going to the yellow blink. After I lift off I am getting a rapid red blink. I lowered my voltage cut offs, thinking I was getting false voltages. No change. It seems to fly just fine except for the altitude hold.

I got mixed up on the heading. I've been studying the Quadrino board.

 

[Elliott000]

Fast red sounds like LVC, Try turning it off altogether... And double check stick calibration on both the tx and naza

Sent from my GT-I9100M using Tapatalk

 

[RAHCO]

I re-set LVC to 0 in the assistant. As soon as I wrote to NAZA the value changed to 10. Do you mean to turn all the voltage protection off?

 

[Elliott000]

yea just shut it off for a quick check and ensure your battery is full. just for the process of elimination

 

[Tahoe Ed]

I use a second warning of 3.3v per cell. So for a 3S, I am at 9.9v and for a 4S, I am at 13.2v. Since this is under load the actual voltage is slightly higher. i end up putting back about 80% into the lipo. I also use a timer on my Tx to be safe. When the timer goes off, I know it is time to start heading home. It normally goes off 30sec after the yellow warning goes off.

I re-set LVC to 0 in the assistant. As soon as I wrote to NAZA the value changed to 10. Do you mean to turn all the voltage protection off?

 

[RAHCO]

I made 2 changes. 1. Turned off the Voltage control. 2. Increased the vertical gain to 115%. Test flight was great. Held altitude within a meter, and most of the time it was very steady at one altitude.

Then, I re-set the voltage control to ON. 2nd Test flight was as good as the first one... Will try 120% vertical gain.

 

[Elliott000]

Nice