SBus fails on teach/setup

Soundmodul und Fahrtregler in einem Modul
Rascal
Beiträge: 3252
Registriert: Do 9. Okt 2014, 01:31

Re: SBus fails on teach/setup

Beitrag von Rascal »

In diagnose_230330_2017.dat the neutral position for Prop #1 was recorded as 1,607 ms, so when the stick is in the middle position at 1,499 ms then the SFR-1 actually thinks it is in reverse, hence why the reversing light is on (output 10) and the hazard lights are flashing (output 5, 6, 13 and 14).
Which means either the throttle was not in neutral at the time of starting the setup or there is something wrong with the input signal.

In diagnose_230330_2021.dat the value for the neutral position looks correct though (1,499 ms).
jimfity@gmail.com
Beiträge: 11
Registriert: Mo 27. Mär 2023, 19:17

Re: SBus fails on teach/setup

Beitrag von jimfity@gmail.com »

It is like there is no output on prop 1, The motor does not turn and the engine sound affects do not rev like they should. Every other prop works as expected.

If I use a pwm receiver the prop 1 works as expected. The problem only affects prop 1 when using Sbus.
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BEIER-Electronic Andy
Administrator
Beiträge: 4140
Registriert: Mi 17. Dez 2008, 07:37

Re: SBus fails on teach/setup

Beitrag von BEIER-Electronic Andy »

But in your recorded diagnosis, Prop #1 worked!

Please record a diagnosis when it doesn't work.
jimfity@gmail.com
Beiträge: 11
Registriert: Mo 27. Mär 2023, 19:17

Re: SBus fails on teach/setup

Beitrag von jimfity@gmail.com »

I think there might be some confusion here.

The diagnosis tool does show input on prop 1 but it never triggers any motor movement or sounds base on the movement.

Would it be worth while for me to record a short video of what happens when using sbus compared to pwm.
Rascal
Beiträge: 3252
Registriert: Do 9. Okt 2014, 01:31

Re: SBus fails on teach/setup

Beitrag von Rascal »

Hello,

the problem is understood but we need to see the additional diagnosis for further investigation.

The one you attached above was taken during the setup, in which case the motor will not be energized. Now that we have seen that the setup should have been successfully executed we would like to see a diagnosis taken in normal condition (with SBUS), i.e. not during the setup phase, so we can figure out why the motor is not energized then.

You may of course attach a video, too.
jimfity@gmail.com
Beiträge: 11
Registriert: Mo 27. Mär 2023, 19:17

Re: SBus fails on teach/setup

Beitrag von jimfity@gmail.com »

Attached is the diagnosis data from the SFR-1 in normal operational mode as asked for. I took two reads of both test/setups I did.

For all runs the LEDs are as follows.
Green: slow flash
Red: off
Blue: fast flash

Runs with no sound turned on:
1. Throttle/prop 1 start at 0%
2. Throttle slowly move to 100%
3. Throttle hold 100%
4. Throttle return to 0%
5. Throttle slowly to -100%
6. Throttle hold -100%
7. Throttle return to 0%

I hope this helps work out what is going wrong.
Dateianhänge
diagnose_230404_1813.dat
(52 KiB) 50-mal heruntergeladen
diagnose_230404_1812.dat
(44.75 KiB) 54-mal heruntergeladen
jimfity@gmail.com
Beiträge: 11
Registriert: Mo 27. Mär 2023, 19:17

Re: SBus fails on teach/setup

Beitrag von jimfity@gmail.com »

As there seems to be a limit to the number of files that can be attached here is the test files for when I enable the sound.

For runs with sound
1. Prop 3 100% for 3 seconds to enable sound
2. Prop 3 back to 0%
3. Throttle/prop 1 start at 0%
4. Throttle slowly move to 100%
5. Throttle hold 100%
6. Throttle return to 0%
7. Throttle slowly to -100%
8. Throttle hold -100%
9. Throttle return to 0%
10. Prop 3 100% for 3 seconds to disable sound
11. Prop 3 back to 0%
Dateianhänge
diagnose_230404_1815_with_sound.dat
(70 KiB) 53-mal heruntergeladen
diagnose_230404_1814_with_sound.dat
(74.5 KiB) 53-mal heruntergeladen
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BEIER-Electronic Andy
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Beiträge: 4140
Registriert: Mi 17. Dez 2008, 07:37

Re: SBus fails on teach/setup

Beitrag von BEIER-Electronic Andy »

It looks like the failsafe bit is always set in the receiver's S-Bus protocol! This is a bug in the receiver firmware.

If the failsafe bit is set, the motor output of the SFR-1 is deactivated for safety reasons.

According to the data sheet, the receiver can also output the i-bus protocol. I would suggest you change the receiver to i-bus and also set in the Sound-Teacher to use i-bus.
jimfity@gmail.com
Beiträge: 11
Registriert: Mo 27. Mär 2023, 19:17

Re: SBus fails on teach/setup

Beitrag von jimfity@gmail.com »

Some progress has happened. I set the receiver and SFR-1 to I-bus. Now the throttle will change the engine sounds but still no motor movement.

I have attached the diagnose recording. In the recording the throttle start at 0% and goes to 100% and then down to -100% with finally going back to 0%.

Looking on the hobbyking forums I did see some questions about the fail safe being asked and also being told to contact the support. If you can confirm there is still the issue with the fail safe I will try the hobbyking support to see if they can give any advice.
Dateianhänge
diagnose_230405_2344.dat
(40.25 KiB) 49-mal heruntergeladen
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BEIER-Electronic Andy
Administrator
Beiträge: 4140
Registriert: Mi 17. Dez 2008, 07:37

Re: SBus fails on teach/setup

Beitrag von BEIER-Electronic Andy »

Everything looks good on the diagnostics now! The motor output stage is controlled by the SFR-1 and the motor should actually turn.

Was the motor properly connected?

If so, then please check again whether the motor rotates without a sum signal.

Incidentally, there is no failsafe bit in the I-bus protocol.
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