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Old 10-23-2011, 10:31 AM   #1
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Default external bec?

ok, i'm new and stupid! i added a CC bec to my wraith. wired it exactly like the instructions said. when i hook up the battery, the lights come on and i have power to the servo, NO power to esc/motor. when i turn the esc power switch on, everything works as normal. i'm running a spektrum reciever that came with my dx3c. i have the bec plugged into the AUX port on the reciever. is this normal, or do i have a wire crossed somewhere? i've looked over the wires several times and they seem right.
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Old 10-23-2011, 11:01 AM   #2
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did you remove the red wire from the ESC plug that goes to channel 2 on your receiver(see below)? and also, i use the bind/battery port for my bec's usually cause my aux. is controlling a winch or something. hope this helps...

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Old 10-23-2011, 11:48 AM   #3
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also make sure that the plug is not backwards into the rx, i did that on accident and had similar results.. had power to lights but nothing else would work.
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Old 10-23-2011, 03:54 PM   #4
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yes i removed th red wire/pin from the esc to the reciever. everything works as it should, just the lights work and the steering servo works WITH the power switch set to OFF. once i turn the power switch to ON the motor and esc work as normal.

i'll try swapping the plugs around. move the lights to the AUX port, and the bec to the BIND port.
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Old 10-23-2011, 05:05 PM   #5
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thats what mine did. the switch goes to the esc, and now with the bec your not using the esc to power the reciver box.
you can add another switch or run the esc and bec switch in a series thru the existing switch.
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Old 10-23-2011, 06:42 PM   #6
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That's normal. The power for the BEC doesn't go through any switch. You MUST unplug your battery.
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Old 10-23-2011, 06:52 PM   #7
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Quote:
Originally Posted by Harley View Post
That's normal. The power for the BEC doesn't go through any switch. You MUST unplug your battery.
or you can put another switch on just to control the bec as it has constant power unless it is uplugged as said above .......
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Old 10-23-2011, 07:01 PM   #8
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Originally Posted by scorpion_ax View Post
or you can put another switch on just to control the bec as it has constant power unless it is uplugged as said above .......
When using LiPO's you should always unplug the pack instead of just using on/off switches. It can damage your packs to leave them plugged in over long periods.
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Old 10-23-2011, 07:31 PM   #9
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Quote:
Originally Posted by Harley View Post
When using LiPO's you should always unplug the pack instead of just using on/off switches. It can damage your packs to leave them plugged in over long periods.
X2, having no switches installed is a sure fire way to make sure you always unplug your lipos when your done.

switches are for noobs, i've seen races lost cause of switches failing, people need to remove them ASAP in my opinion, i'm tired if hearing "IT'S THE POWER SWITCH" when somones car dies, do something about it, its not the marshals duty to wiggle your switch till your car fires back up /rant

(unless you have no choice traxxas VXL for example)
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Old 11-09-2012, 12:49 AM   #10
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Default Re: external bec?

can i splice the power and ground directly into the servo and leave the signal pluged into the reciver
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Old 11-09-2012, 04:34 AM   #11
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Default Re: external bec?

I use a Y lead to power my servo from my BEC, with the red wire from the plug on this into the RX pulled. The ESC still powers the RX and everything else.

I always unplug every time.
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Old 11-09-2012, 10:40 AM   #12
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Default Re: external bec?

Only thing I would use a switch for is the lights!
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