Question regarding connecting FC, ESC, and battery

B

brett.freese

New Member
I am building a quadcopter that will use the sunrise cicada 30A 4 in 1 ESC, and an F4 Flame FC. The ESC has 2 (what I believe) are 16 gauge wires for +V and GND, as well as five thinner wires, four of which are signal wires for the motors and connect to the FC, and the last one another GND wire. The FC has a signal pad for each motor as well as a +V and -V pad for each motor. Since I am using a 4 in 1 ESC (which only has one set of +V and GND wires + another random smaller GND wire) I do not know how I am supposed to connect the ESC to the FC. I know that I am supposed to solder the signal wires from the ESC to the signal pads on the FC, but don't I need other connections as well?

The 16 gauge wires coming from the ESC (the fat red and black ones) look as if I am supposed to solder them to a XT60 plug and then plug that into the battery, but I thought I was supposed to connect the battery to the FC and not to the ESC? Or are the 16 gauge wires meant to solder onto the FC (the big + and - pads), and then I plug the FC into the battery?

What is the fifth small wire (next to the signal wires) that is labeled GND for? Why doesn't it have a +V wire paired with it? Why only ground?
 

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Hi the main wires Red/Black will go to the battery xt60 or a power board if one is used the FCB will get power from the 4 in 1 ESC normally from the wires to motor one pins
You should have a plug that goes into were it says s1 s2 s3 s4 these are the signal wires , I would place the 3 wire plug to motor 1 pins on the FCB this is the power signal and ground wires this will power the FCB the other are just signal plugs for motors 2,3,4
 
Hello, sorry but I am not sure I understand your comment. Are you saying that the FCB will get power from the signal wires? The FCB does not have pins on it, only solder pads. Also, for the plug that contains the signal wires, there is a ground wire but no red +V wire. Right now I have soldered the big red and black wires from the ESC to the large +V and GND pads on the FCB, and then a second pair of large wires from those big pads on the FCB to a xt60 connector (and then to battery). Is this an okay arrangement?
 
Yes, that's the correct way to power your ESCs and flight controller. Now just connect the 4 signal wires from the ESCs to the appropriate pads on the flight controller. As for the ground wire on the ESC, just connect it to the ground with signal wire 1 on your flight controller
 
Sorry was not about ,yes as my colleague said
You can power it both ways first power receiver then this will power the FCB
Second is power FCB then this will power ESC from the FCB
 
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