I thought the bec was a low battery indicator? whats a low battery indicator called? Would I solder it to the pdb? Whats a ubec? Sorry for all the questioms everyone.. gawd I wish I haf someone in person to talk to. Thank you all again!! My heads been hurting from the fliw if information frim here and youtube man its a lit to take in... lots of typeos there
newbs first build help please
- Thread starter johnathan
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tylorwashere
Well-Known Member
Bec stands for battery eliminator circuit, you can program your esc's to have a low voltage cut, if you bought the programming tool for the esc's that yout have. A ubec is just a different kind of bec, it's supposed to be a little more efficient. The bec is built into your esc, it isn't a separate thing
tylorwashere
Well-Known Member
Here's a few pictures that might help, some of the picture quality is crap due to resizing.
The first picture is of an esc. You'll notice there are three wires on one side, which are the wires that connext to your motor. The other side has a red, which is hot, a black, which is ground, and a grouping of three smaller wires. One of these smaller wires, in the case of mine the yellow one, is the signal wire. The other two are hot and ground from the bec, putting out 5v.
The next picture is of a reciever. The top plug, or the 1st spot, has 3 wires going into it. This is your throttle connection. One of these wires is signal, and the other two are hot and ground, pulling 5v from the FC to power itself. The rest of the connections for the rest of the channels will only have one wire, for signal.
The next picture is of the signal, hot and ground wires from all four esc's plugged into to fc. If you were to pull the power wires from 3, 3 of them would only have the signal wire connected, while one would have all 3 wires still connected.
The last picture is of a simple Male to male deans to xt 60 connector, for batteries that have a deans connector so I can plug them into my quad, which has a female xt 60 connector
The first picture is of an esc. You'll notice there are three wires on one side, which are the wires that connext to your motor. The other side has a red, which is hot, a black, which is ground, and a grouping of three smaller wires. One of these smaller wires, in the case of mine the yellow one, is the signal wire. The other two are hot and ground from the bec, putting out 5v.
The next picture is of a reciever. The top plug, or the 1st spot, has 3 wires going into it. This is your throttle connection. One of these wires is signal, and the other two are hot and ground, pulling 5v from the FC to power itself. The rest of the connections for the rest of the channels will only have one wire, for signal.
The next picture is of the signal, hot and ground wires from all four esc's plugged into to fc. If you were to pull the power wires from 3, 3 of them would only have the signal wire connected, while one would have all 3 wires still connected.
The last picture is of a simple Male to male deans to xt 60 connector, for batteries that have a deans connector so I can plug them into my quad, which has a female xt 60 connector
RENOV8R
Well-Known Member
Yes, run all 3 wires from motor #1 to your CC3D. For the remaining 3, chop off the black and red power wires close to the ESC. Fold them over and and seal them with shrink tube and just run the yellow signal wires to the CC#D. I took the 3 and put them in a servo plug and plugged it into 2, 3 and 4 on the board. Nice and neat. You'll be surprised how much wire is removed, it adds up to some weight savings.
I have to buy a program to program the esc? in with the erc there are instructions in hiw to program, either via transmitter or program card. I skimmed throu it.. seemed gibberish. Maybe next time.I read it, ittl make more sense.
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would cutting the wires prevent me from programing the erc?
tylorwashere
Well-Known Member
Good luck, you got Flux right?
tylorwashere
Well-Known Member
Looks right, give them a little tug to make sure you don't have a cold solder. Flux makes it much much easier, a Flux coated wire will suck up solder like a candle wick
andy bards
Well-Known Member
yes it would be better (capable of supplying more amps) .. and safer if there was a battery failure,, still have one left..
JUST A LITTLE THING TO REMEMBER don't forget a battery lipo alarm -- set your low voltage alarm, and when you battery runs low you get an audible sound telling you to land soon.. its a small device that plus into your balancing connector on battery, gives you individual cell voltages as well..
andy bards
Well-Known Member
the only problem between the 3s and 4s battery is going to be heat,, the motor will be able to handle both batteries no problem, but the 4s option may generate more heat on the motor.
the battery will not burn out the motors,, the esc will probably go first with the motor demanding more amps than the esc can handle when flying fast full throttle/accelerating for long periods.
esc have a max output of amps they can continuously maintain with a burst limit of so many seconds (overdrive) they can be pushed to..
if like myself and new to the quadcopter,, you will be flying slowly, and wont have any issues with amps and so on,,
good luck Andy