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Brownout or esc issue?
I run a 1/10 shortcourse with a hobbyking 120a 1/5-1/8 esc (bought before I knew very much about anything). It has a limit of 7,5T offroad motors according to it's manual. With this, i run the Castle 1410.
The issue is, that about halvway into a battery, I frequently get "throttle brownout" meaning that the car totally loses power, and stands there for a good 2-4 seconds(sometimes less). During this time I can control the steering servo. The glitch does seem to start after the truck takes a hit, for example after landing a jump, and then continues to return on any stretch of the track. When i run on a flat surface i can get to lvc without any issues. But when i mix in some jumping, the glitch comes a while into a battery. I have a 3300uf voltage protector connected to the receiver. The fact that i can control the wheels during the glitch leads me to believe that it is not a radio brownout, and that the problem is more inclined to come from the esc. Any ideas? |
Yea - doesnt sound like a servo/BEC issue. You can usually recreate those on the bench.
I'm not too smart on those ESC's, but if it has a limit of 7.5T (that being the lower limit), I think the castle falls below that? I'm not sure what its rated in turns, but @ 3800kv, I'd GUESS....5.5T? Not sure with it being a 4 pole, how that figures in. Its a neu style I believe, so I dont think it follows the turns conventional motors are given... My money would be on the ESC. How are temps when you come off? |
I read somewhere that the 1410 is equivalent to 10,5T. Not entirely sure though.
Temperatures have always been on the coolside, the esc seems only mildly strained by the motor. |
Got this cleared up.
It was the esc. When i opened it up there was a load of dried dirt on the electronics. After all this was cleaned off, the esc ran great. |
Originally Posted by cavg
(Post 9587149)
I run a 1/10 shortcourse with a hobbyking 120a 1/5-1/8 esc (bought before I knew very much about anything). It has a limit of 7,5T offroad motors according to it's manual. With this, i run the Castle 1410.
The issue is, that about halvway into a battery, I frequently get "throttle brownout" meaning that the car totally loses power, and stands there for a good 2-4 seconds(sometimes less). During this time I can control the steering servo. The glitch does seem to start after the truck takes a hit, for example after landing a jump, and then continues to return on any stretch of the track. When i run on a flat surface i can get to lvc without any issues. But when i mix in some jumping, the glitch comes a while into a battery. I have a 3300uf voltage protector connected to the receiver. The fact that i can control the wheels during the glitch leads me to believe that it is not a radio brownout, and that the problem is more inclined to come from the esc. Any ideas? Equipment = Tekin RS Pro, SANWA SRG-BLS, 451R Rx, 17.5T Ballistic motor. Throttle Brown-out lasts only a couple of seconds and occurs mostly after a roll-over. Added a cap, ensured that all LVC's are off, changed motor/sensor wire....still happened. I now changed ESC. Hoping that this will work. Are you certain that cleaning the innards of the ESC was the solution? Thanks!! |
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