Skippers Walker Posted March 24, 2020 Share Posted March 24, 2020 Hi Folks I have just completed a Micro indoor fixed wing Cessna L19. Bench testing the RC gear has presented me with a perplexing issue: When connecting the tiny motor via a 5A ESC to the Micron Rx the motor fails to respond to the Tx throttle signal, it just emits a continuous rapid series of beeps. The servos work normally and I have checked the wiring to the JST-SH plugs which appears OK. Any helpful comment would be welcome please. I hasten to add that I'm a recent convert to electric flying, especially the Micro stuff! Thanks & stay healthy SW Quote Link to comment Share on other sites More sharing options...
michael cawood Posted March 24, 2020 Share Posted March 24, 2020 hi SW, i had the same problem with my banggood flying flea. I solved it by taking the throttle trim right down as far as it would go. it fired up ok. be warned the throttle control is very limited, sort of on or off. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted March 24, 2020 Share Posted March 24, 2020 The ESC senses Throttle High or some Throttle on and is protecting you. With the prop off, try trimming down If this does not stop the beeping, then reverse the throttle and trim down again Quote Link to comment Share on other sites More sharing options...
John Wagg Posted March 24, 2020 Share Posted March 24, 2020 Some instruction on Utube :- https://www.youtube.com/watch?v=kIQ74qp5BaY Quote Link to comment Share on other sites More sharing options...
Skippers Walker Posted March 24, 2020 Author Share Posted March 24, 2020 Many thanks for the helpful guidance, I'll give them a try and post my results. SW Quote Link to comment Share on other sites More sharing options...
Allan Bennett Posted March 24, 2020 Share Posted March 24, 2020 Rapid beeps from an ESC indicate that it's not getting the correct signal from the receiver, or not any signal at all. As others have suggested, the signal it's expecting when you power up the model (with transmitter already switched on) is zero throttle, and sometimes it needs throttle trim to be fully down to achieve that. (With Futaba transmitters it also needs the throttle channel to be reversed.) Once the ESC is reacting correctly, you usually need to calibrate it. That's what is being shown in the link in John Wagg's post above. Failure to calibrate might account for michael cawood's experience with his throttle being sort of on or off. Quote Link to comment Share on other sites More sharing options...
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