Transmitter Loss failsafe

Posted by Damo on July 30, 2013 at 12:41pm

Hello,

I want to setup failsafe for my Futaba T6EX tranmitter. I have been following this http://copter.ardupilot.com/wiki/failsafe/#Throttle_Failsafe

When i power down the transmitter my PWM value does not drop on ch 3 so i assume that the transmitter / receiver have it's own built in fail safe so i read the manual in detail (http://manuals.hobbico.com/fut/6ex-2_4ghz-manual.pdf) - (see below for the excerpt that i am specifically referring to)

Should i set the mode F/S to "NOR" or "F/S"

i tried both and neither make any difference to the ch3 value when the transmitter is switched off.

When set to F/S there is a % option but alas i cannot change it - it was set to 20% but somehow i changed it to 52% - 

thanks

Damo

Excerpt from manual

"To set the Fail Safe Function:

1. Enter the programming mode. Access the “F/S” screen with the MODE key.
2. Press DATA Input lever downward when you need to set Fail Safe. The arrow moves to
“F/S” side. This means that the F/S function is activated. Then move the throttle stick to the
position where you want the servo to move when “F/S” function works and press DATA
INPUT lever downward for about two seconds. A figure in percentage will be shown with
a beeping sound. Press DATA INPUT lever upward if you want to set “NOR”. The arrow
moves to “NOR” side and then the “NOR” function is selected.
The F/S value is set to 20% of the full throttle for “F/S” function as a default.
3. Verify if the F/S function has been correctly set. Turn off the transmitter, then check if the
throttle servo moves to the position that you set."

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Replies

  • Pedals2Paddles April 24, 2014 at 6:40pm

    Am I missing something here??  All you need to do is bind the receiver such that the throttle goes to -120% when it loses contact.  I'm not familiar with that TX, but if the whole point is what do when you lose the transmitter, I'm not sure what TX programming is going to help you with.

    • Damo > Pedals2Paddles April 25, 2014 at 1:00pm

      yes - you are missing something - there are 14 steps required. Not all of these are documented in a manual.

  • Damo April 24, 2014 at 12:24pm

    Final Instructions - Complete 

    I got the Solution to this for the Futaba T6EX

    Here they are:

    Note: Press Mode + Select together for 1 seconds to enter programming mode

    1. Enter programming mode
    2. Press mode until the EPA screen opens
    3. Press select until ch3 is selected
    4. Press the DATA INPUT key up until the value gets to 140%
    5. Turn off/on the transmitter
    6. Enter the programming mode. Access the “F/S” screen with the MODE key.
    7. Press DATA Input lever downward when you need to set Fail Safe. The arrow moves to “F/S” side. This means that the F/S function is activated. Then move the throttle stick to the position where you want the servo to move when “F/S” function works [i.e minimum throttle] and press DATA INPUT lever downward for about two seconds. A figure in percentage will be shown with a beeping sound[For me it was 4% which is perfect].
    8. Verify if the F/S function has been correctly set. Turn off the transmitter, then check if the throttle servo moves to the position that you set."
    9. Enter programming mode
    10. Press mode until the EPA screen opens
    11. Press select until ch3 is selected
    12. Press the DATA INPUT key up until the value gets to 100%
    13. Turn off/on the transmitter
    14. Now you have to set the mode of the transmitter so that ch3 is your throttle:To change the mode, simultaneously depress the MODE and SELECT keys, then turn on the power. The current mode will appear on the LCD screen. Push the DATA INPUT lever up or down to change the mode. Read google to figure out what mode you fly in - 
This reply was deleted.