search

FrSkyRC / ETHOS-Feedback-Community

Feedback & suggestions are welcomed here for ETHOS by FrSky
191 stars 85 forks source link

Redundancy R9MX Receiver not working at 25mw #268

Closed Toolroom1 closed 3 years ago

Toolroom1 commented 3 years ago

I have an SR6 and an R9MX for redundancy in my aircraft, if I set the POWER setting of the R9MX to 25mw as it should be in my region and then switch the 2.4 transmitter off, the model surfaces will move to my custom HOLD settings giving me no redundancy. If I now repeat this with the R9MX set at a POWER setting of 200mw when I switch off the 2.4 transmitter I do not loose control, I only loose telemetry which is fine. Also the Icon for the R9MX does not light up. X20s-Firmware 1.0.6 EU-SR6-R9MX Internal Module TD-ISRM HW:1.4.0 FW:2.1.6 (EU) Receiver 1 Archer X HW: 1.2.0 FW: 2.1.7 Receiver 2 R9MX HW: 1.1.1 FW: 1.3.1

Keep up your good work

WismyYao commented 3 years ago

Did you re-bind the R9MX when you switched the power ?

WismyYao commented 3 years ago

How about TD-ISRM firmware 2.1.7 ?

Toolroom1 commented 3 years ago

Here is what happens.

  1. X20S and aircraft switched on and set to 200mw SR6 LED GREEN R9 GREEN
  2. Click on the 25mw setting for R9 and the R9 LED glows RED
  3. Switch off Aircraft and X20S
  4. Switch on X20S and aircraft, SR6 LED glows GREEN R9 LED glows RED
  5. Click on R9 BIND, result, SR6 LED glows RED, R9 glows RED, the X20S screen shows the BIND banner "waiting for receiver" but it never gets a signal the only way out is for me to switch both X20S and aircraft off and go back to 200mw.

NOTE: I also tried binding R9 with 2.4 switched off but still got the same result.

On Wed, 19 May 2021 at 07:57, Wismy @.***> wrote:

Did you re-bind the R9MX when you switched the power ?

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/FrSkyRC/ETHOS-Feedback-Community/issues/268#issuecomment-843801825, or unsubscribe https://github.com/notifications/unsubscribe-auth/AG5FAMQGGZOUIGJZW3IPIKTTONOMTANCNFSM45B6TM2Q .

WismyYao commented 3 years ago

When you change the power from 200mw to 25mw, you should re-bind the R9MX.

Toolroom1 commented 3 years ago

Please show a link pointing to download. TD-ISRM firmware 2.1.7

WismyYao commented 3 years ago

https://www.frsky-rc.com/wp-content/uploads/Downloads/Firmware/X20X20S/FW-X20X20S-TD_v2.1.7.zip

Toolroom1 commented 3 years ago

Thank you, I had managed to find it before your post. I have updated it but the problem is still the same sadly.

WismyYao commented 3 years ago

Thank you, I had managed to find it before your post. I have updated it but the problem is still the same sadly.

You should rebind the R9MX when you changed the power, did you do it ?

Toolroom1 commented 3 years ago

I did try to Rebind after changing to 25mw, the R9MX has its RED LED glowing the moment 25mw is selected and will not talk to the transmitter, as before the screen on X20S shows BIND banner "waiting for receiver" but it never gets a signal.

WismyYao commented 3 years ago

We tried many times and haven't reproduced it. Can you share a video about it ?

Toolroom1 commented 3 years ago

I have Just manager to get in to work at 25mw, I think what I did was with every thing running and the RM at 200mw I then switched off 2.4 then change RM to 25mw, then powered down the aircraft, then powered up again and selected RM bind which then offered me to bind SR or RM I chose RM then switched off 2.4 and found RM was still in control. I must apologize for wasting your valuable time, I must have been trying in the wrong sequence, I did post a video earlier but deleted it as I now have it working. Thanks for all your help.

Toolroom1 commented 3 years ago

Please read my last comment first. Something that is bothering me is when I power the system up all the servos move hard over for a second or so, I only ask as I have just had an aileron servo stop working, I'm wondering if this is due to being strained on each powerup. Should I start another thread for this?

FrSky-GX commented 3 years ago

Would you record a video of servo hard moving？

Toolroom1 commented 3 years ago

The side with no wing is where the servo has stopped working.

https://user-images.githubusercontent.com/28987442/119220149-f9200d00-bae0-11eb-9fab-9ef80775632a.mov

Toolroom1 commented 3 years ago

Please can you fix this problem, I'm worried about damaging another servo.

Toolroom1 commented 3 years ago

I took the servo apart and it smelt of burning inside.

FrSky-GX commented 3 years ago

When the receiver is powered on, we don't find any abnormal waveform on the oscilloscope. You can remove the signal wire of the servo from the plug and only connect the power supply and ground to see if this phenomenon still exists. Or do you use other types of receivers without such phenomenon？

Toolroom1 commented 3 years ago

This problem surely must be the X20S and SR6 as all I have done is replace my Powerbox receiver with the SR6 receiver, I'm leaving Powerbox as I think ETHOS is a better programming system, BUT this unwanted servo movement never once happened with the Powerbox receiver. My Powerbox Receiver

Toolroom1 commented 3 years ago

I have replaced the servo that had burnt out, and noticed that the other three servos lock over but the new one does not, this leads me to believe it is more a problem with the three, NEW POWER XL-17HMB servos. This does not answer why they did not ever lock over with the Powerbox system.