Turnigy 9X Stock Receiver Failsafe

[ShowMaster]

If your not worried about fly always, or NEVER turn your tx off when the plane is powered, and respect the PROP and where you put your hands, you don't need failsafe. It's just an extra safety feature that's useful.
If you fly only electrics the esc's will usually power down the motor if signal is lost.
For nitro planes with a full tank of gas loosing link and the motor on full, your plane could go miles before crashing.
All turbines require engine cutoff failsafe at my field in a populated area.

consider upgrading when you can to the Frsky DJT module and receivers you'll not regret it.

[jhsa]

it's not misleading. Flysky RECENTLY changed the receivers firmware. And i guess both behaviours can happen. Answering your question again, no you can't program the failsafe on those receivers. As simple as that. Now, you believe it or not.

[victor88]

As you mentioned, we may set the failsafe as RTH or position hold, if transmitter off suddenly while heli on work bench, the motor still spins right ? unless we set failsafe as throttle off, otherwise the motor will still spins, if we forgot to on the tx and on the rx first,...

[jhsa]

You know what, try it.. make sure you take the blades off the heli or it might get a bit messy..

Good luck

[jhsa]

Ok, if you're using a FLIGHT CONTROLLER on your aircraft, it can take advantage of the fact that the receiver stops the pulses and the flight controller HANDLE THE FAILSAFE ISTSLEF. In this case is NOT the receiver setting the failsafe, but the flight controller.
As I said before, flysky changed the firmware of the receivers lately, so some might just stop the pulses on loss of signal as it should be, and some might send pulses at something like half throttle, which is not good in any case.. You will have to try what you have..

João

[ShowMaster]

So test it already?
It either has or hasn't sent failsafe of some kind depending on maybe the model and fate it was made?. Put a servo in the throttle channel and see what the servo arm does when you power the tx on and off from a half or full throttle position.
If the fails try clicking your heals together 3 times. Can't hurt.

[victor88]

thanks jhsa, seems throttle cut and RTH don't happen concurrently for receiver failsafe. We still need Flight controller failsafe feature for decision making as it is smarter in this sense whereby it has got sensors as well as more robust programming software and CPU as to what actions to take.... throttle cut or RTH... FC failsafe is better than Receiver failsafe, I think I better invest in a good FC rather than frsky system cos my range is below 1km for my quads, I may use the stock 9x receiver if it got throttle cut firmware, thank god,waiting for my 9x orders to arrive....

[jhsa]

I would use frsky module and receivers.. more reliable. but that is just me..

João

[gohsthb]

RTH (return to home) and throttle cut can't work together! Unless you are already over home.

[jhsa]

he he he

[victor88]

RTH (return to home) and throttle cut can't work together! Unless you are already over home.

throttle cut is quite standard for ESC even without receiver failsafe.

[johste]

SET THE FAILSAFE , IT WORKS , THIS IS WHAT HAPPENED WHEN I LEFT IT AS STOCK

https://www.youtube.com/watch?v=dESQ-Iz3WW0

[jhsa]

Thay way I see it is that you had lost of control a couple times, you forced the craft up again, only to lose control again, and you make it go up again?
You're lucky it didn't crash on top of a house or a car..

What RF module are you using?

João
EDIT: I just read the topic title. You are using the stock 9x module and receivers?
Those don't have failsafe on all channels as far as I know, so not good for your application. But you say it worked? I don't think that is possible..

[Daedalus66]

The stock receivers are supposed to go to no pulses on any channel if signal is lost. There have been suggestions, however, that this behavior has changed in recent years to holding last position. I can't verify this but it's certainly something to test with a given receiver.


Sent from my iPad using Tapatalk

[kaos]

Looks like that is a perfect ad for using Flsyky rx, it 'flew' the plane out of populated area and dumped in an clear area.

[johste]

I found out now that I have it on the table that when the Tx is shut off so do the motors, but when the Tx is turned back on the motors start working again without control being regained. So if signal is lost momentarily and regained you have an uncontrollable craft.
My question is since this Tx module is designed to not be replaced and use the stock Rx why does the transmitter have FailSafe options in the Menu?
I have tried setting them and get the same response when signal is lost

[MikeB]

What firmware are you using on the Tx?

Mike.

[Kilrah]

1) The behavior you noticed only happens when the radio (actually TX module) is powered off. It does not reflect what happens on a loss of signal.
2) The stock firmware dates back from before that radio was even sold with a 2.4GHz module, and the failsafe settings applied to the PCM modulation choice of MHz modules.