sometimes servos do not initialize

Hallo,

I would try for testing !

Please do not use BEC; take a normal 6 Volt RX battery with a normal switch and test if the issue is gone or not.


Regards
PW

Hello

Thats a problem because i don't have space... its a f5j explorer and the fuse is very narrow.

So you think its a power supply problem, even with the redundant power supply coming from the ultrabec?

Maybe i can try powering with an external bec? disabling the one that comes with the esc i mean.

Thanks!!

Only for testing at the ground !

Ok, i will try.

One thing i noticed viewing the telemetry its that the voltage oscilate a little.... This is the data from a fail, i boot up the model and after launch check controls, found that an aileron does not respond and shutdown. I see the same voltage oscillation in all the flights

To make the test with the external rx battery i think that i will need to be able to reproduce the issue... if not it will not probe anything..

Tried today almost 50 cycles (power up, check servos, shut down) and i was not able to reproduce the issue. This was without the external battery, just normal configuration, i did not try with only the external one as i was not able to make the issue happen

One thing that i don't understand its that if its a power supply problem why the other servos move and the one that dont, its free to move with hand like no power or signal, because i can plug a servo after i turn on tx and rx and it will work, no need to be plugged on startup.

Im afraid that this will happen on flight and i lost one surface

Ideas?