help...losing servo power when connecting the speed control

[eckloss]

ok, so this is a new one on me. anyone else have this issue?

using a thor speed control w/ built in bec.

when the speed control is installed, the motor works fine, but i lose power to the servos. when i switch to a batter pack to power the receiver, i regain servo control. obviously i dont want to have to use both power sources...

ideas?

[tmsmalley]

I had a different brand

I had a different brand of ESC with a battery eliminator circuit (BEC) , but it apparently didn't put out enough power to run all the servos. I wound up installing a separate BEC (SubTec) running off my main battery to power the receiver and that solved the problem. I don't know if that's your issue, but it might be worth a try!

BTW - many thanks for providing the cakes for the SubRegatta, Erich! They made for a nice treat after the Saturday evening SubSeminar and after the awards on Sunday!

T

[eckloss]

im thinking ive just got

im thinking ive just got a short or defect in my esc....ive lost throttle control at this point as well. wouldnt surprise me, the unit has been sitting for a long time.

no thanks needed for the cakes. least i could do!

[skip asay]

First question is what is

First question is what is your battery voltage? If it's 7.2 or less, there's your problem. The BEC that's used is not a low drop out version (at least that's what I've seen) and that means it needs to be fed at least 8 volts to be able to supply a rock steady 5 volt output.

If you decide to go with a separate BEC, make sure you disconnect the red (+) wire from your RX connector.

The fact that it "has been sitting for a long time" should have no effect on it. It's all electronic.

Skip Asay

[eckloss]

that could be it then.

that could be it then. its a 7.2v pack. ill wire up another one and crank it up to 14.4 and see if that works