Naza gps and Futaba 8fg transmitter failsafe WHY?

[cinemacopter]

Hi
I have two questions and hope someone can answer them or point me in the right direction:shame:

1. As I understand it there are two types of failsafe to configure
- Failsafe in NAZA
- Failsafe in Transmitter (receiver)
What I dont understand is why I have to configure transmitter/receiver for failsafe?
If I only configured NAZA failsafe, and shut down transmitter it goes to failsafe(assistant software, blue-failsafe), shouldnt this be enough?


2. If it going in to failsafe and hexacopter starts to fly away, can I abort failsafe and switch to atti mode and bring it back with transmitter?

 

[akromatic]

I have understood from reading in different multicopter forums that the Tx sends data to the Naza unit when going into failsafe. And the data it sends to the Naza unit is information about what throttle percentage it should keep the motors at while descending in falesafe mode. As I understand it going into failsafe mode means it will descend when it looses Tx signal or if you force failsafe through a switch on the Tx. So what you need to do is to set your Futaba (under the failsafe menu) to send a predefined throttle percentage to the Naza when signal is lost so that it can descend in a civilized manner.

Be careful when testing failsafe! Ask a buddy to hold the multicopter for you. I have a Futaba 8fg like you and when I tried the failsafe mode by turning off the Tx when I was in Atti mode my Dji Hexa with Tigermotors that I held in my left hand went craaazy and throttled up like hell, I could barely hold it. I quickly turned on the Futaba with my right hand and somehow managed to shut down the motors, pheew!! Now I am trying to figure out like you how to make the Futaba send a decent throttle value to the Naza when going into failsafe..

 

[cinemacopter]

I tried failsafe this week, both shutting of transmitter and failsafe button on my transmitter and it worked like a charm. It went up about 20 m and back down to the place were it started(GPS).
I even tried one time to abort a when it was in failsafe mode without any problem.
As I understand it, the value you set is not for the throttle speed, you change this value for the Naza assistant software to trim it into the failsafe area(Now I know WHY).
I will try more when I'm back from my vacation.:tennis:

 

[mitsaras]

Hey cinemacopter!
The way I understand failsafe is: you need to set your receiver failsafe to trigger the Naza failsafe - Naza can only know something is wrong (loss of signal) only if the receiver "tells" it. You need to set your transmitter so that turning it off triggers the Naza into failsafe in every flight mode, manual / atti / gps.
This helped me a lot (not my site).
As for 2., I believe that if you flip the mode switch to manual & then to atti you regain control.