I have Hitec R/C equipment in my APM2-equipped Telemaster. The rx is the Optima 7. This rx has a failsafe capability where you can select the throttle setting and the control surface position when signal is lost. Loss of signal results in the failsafe selections within one second. My configuration setting is zero throttle and neutral control surfaces.
I have tested this setup (no APM connected) with partial throttle and control surface deflection. Turning off the tx results in advertised failsafe behavior.
My understanding is that in APM2 MANUAL mode, receiver outputs are supposed to be directly passed through without modification to the servos and ESC. Thus I expect failsafe settings to be passed through unchanged when I test it with APM2 connected.
The results have left me concerned! It appears that the control surfaces behave properly, ie, they go to neutral. The throttle, however, does not go to zero. There is a modest reduction in the motor speed but it is nowhere near zero.
Do I have reason to be concerned?
Fred
Replies
@Vernon, I think Fred meant "zero throttle" to mean "lowest stick postion."
I've got the same setup on my FrSky... you bind by holding the bind button on the Rx, position your sticks and switches, and then click the bind button again.
I position my APM mode switch to the setting I've mapped to RTH.
@John, thanks for the patch!