Originally Posted by wfield0455

Setting up turbine fail safe is not done in the ECU, it's done in your transmitter. I personally have the fail-safe for my throttle channel set to OFF, which when the receiver loses contact with the transmitter causes the servo pulse on the throttle channel to cease being output. If this continues for a couple of seconds the ECU will shut down the turbine and log the shut down code as Lost RC (or something to that effect). I consider this to be very important as ANYTIME my turbine shuts down I want to know WHY.

Another way that the ECU uses to detect loss of RC for transmitters that don't have the ability to shut off the servo pulse is to detect an "out of bounds" throttle pule width. For example, my transmitter sends a throttle pulse of 1100us for stop, 1300us for run and 1900us for full throttle. Sending a servo pulse significantly outside that range should cause the ECU to recognize a fail safe condition, shut down the turbine and log it as lost RC. So if you simply set your transmitter fail safe to send a pule to the throttle channel outside the 1100-1900us, range (from my example) such as 1000us, then that should do the trick as well.

Setting your throttle fail-safe to the shutdown value will safely kill the turbine but will simply be logged as a normal shut down. If loss of control was only the minimum duration for the ECU to shut down the turbine, depending on what you were doing at the time may leave you wondering why your turbine stopped with no useful info in you ECU log to help you understand what happened.

That's about as complete a description of how most ECUs detect fail safe as you're going to find. I personally have used both methods with multiple JETCAT and KINGTECH turbines and both work equally well.