over taxing esc
Just got a slow ride from Tower hobby, Went with the recommended servos Tactic minis and encountered a problem. When I operate the servos on the ground going from one the other the esc power quits and browns out the receiver. I have tried 4 escs from different brands and all have a 5v 3a rated output. If I disconnect esc power to the rec and add an aux battery to the rec. the problem goes away. I can operate the servos all day long and no brownout; Has anyone seen these tactic servos overload a system elect. I have many of the Tactic standard size and no problems love them.
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Similar problem, causes and solutions
Power loss when applying aileron and elevator - RCG Prettig weekend Attachment 2264721 Ron • Without a watt-meter you are in the dark ... until something starts to glow • • e-flight calculators • watt-meters • diy motor tips&tricks • Cumulus MFC • |
Originally Posted by oly 9
(Post 12534089)
Just got a slow ride from Tower hobby, Went with the recommended servos Tactic minis and encountered a problem. When I operate the servos on the ground going from one the other the esc power quits and browns out the receiver. I have tried 4 escs from different brands and all have a 5v 3a rated output. If I disconnect esc power to the rec and add an aux battery to the rec. the problem goes away. I can operate the servos all day long and no brownout; Has anyone seen these tactic servos overload a system elect. I have many of the Tactic standard size and no problems love them.
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What ESC's and how many cells?
With the Slow Ride setup for 3D, the large throws and surfaces are going to result in higher current draw, even without any aerodynamics loads. If the ESC's have linear 3A BEC's and you're running on 3S, you'e almost certain to have a problem, and 4S is out of the question with most linear BEC's. Pete |
(UBEC is a propriatery brand name, no info,I prefer LBEC (linear) and switching SBEC (switching), gives more info.)
The higher the power-pack voltage, the fewer servos a non-switching = linear BEC = LBEC can handle. Switching BEC's = SBEC hardly have this restriction. The higher the battery voltage, the hotter a LBEC will get, for a given current/load/servos. Or, in other words ... The higher the battery voltage, the lower the current a linear BEC can supply. In depth:
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