coging with cc bec
#1
coging with cc bec
so i was getting brown outs with my spektrum 6040 servo and my sv2 esc.
the brownouts started after i ran at least 20-30 packs with no problem.
so i installed the cc 10amp bec.
and now it cogs hjas anyone heard of this with the bec.
with a reciever pack it works great.
and the motor is a cc 1410 3800.
what else could i do to fix this problem.
thanks for any and all advice.
mike
the brownouts started after i ran at least 20-30 packs with no problem.
so i installed the cc 10amp bec.
and now it cogs hjas anyone heard of this with the bec.
with a reciever pack it works great.
and the motor is a cc 1410 3800.
what else could i do to fix this problem.
thanks for any and all advice.
mike
#2
Got a pic of yopur wiring? Is the red wire in the rx lead of the ESC still connected ?
#3
Tech Master
iTrader: (3)
If it is indeed "cogging" that you are experiencing its unlikely to be related to the external bec
Does the ESC calibrate correctly to your transmitter ?
What ESC settings are you using ?
You can try rolling back the software revision on the ESC, it often fixes random problems
Cheers
Does the ESC calibrate correctly to your transmitter ?
What ESC settings are you using ?
You can try rolling back the software revision on the ESC, it often fixes random problems
Cheers
#4
the red wire has been removed.
it works fine with a reciever pack.
im wondering if the speedo is on its way out.
it worked fine for 25 or more packs just started to brown out.
i was going to get a mmp but ive heard i could have the same probllem with that as well
maybe its not coging but its stuttering like when i hit the throtle it accelerates but on and off
my radio is a 3pmx nothing set on the settings full power throttle
it works fine with a reciever pack.
im wondering if the speedo is on its way out.
it worked fine for 25 or more packs just started to brown out.
i was going to get a mmp but ive heard i could have the same probllem with that as well
maybe its not coging but its stuttering like when i hit the throtle it accelerates but on and off
my radio is a 3pmx nothing set on the settings full power throttle
Last edited by 68sportcoup; 07-02-2012 at 03:27 PM.
#5
ok so i tried it again.
i unpluged the reciever pack and pluged the bec back in.
from a dead stop mash the throttle it stutters or skips and goes about 6 or 7 times then it takes off.
i unpluged the reciever pack and pluged the bec back in.
from a dead stop mash the throttle it stutters or skips and goes about 6 or 7 times then it takes off.
#8
Receiver pack is 1700
Punch control is off
Punch control is off
#10
With the receiver pack it works fine trims work I can slow it down with the radio
I'll have to try the older firmware when I get home
I'll have to try the older firmware when I get home
#11
Tech Master
iTrader: (3)
There are a few things that could cause this problem.
Binding in the linkage:
Remove the servo horn & check for any bind in the linkages.This can cause a servo to pull more amps than either of your bec 's can provide & cause the motor to cog on take off.
Check your servo:
Rapidly turn the steering back & forth ( with the transmitter) & check if the servo is getting hot.
A receiver battery pack of 1700ma should be able to supply more amperage than a 10 amp bec.
Also like was mentioned earlier your main battery could be weak.
A watt meter wired in line with your bec or servo would tell you if you are exceeding your bec's ability.
A Watt meter is what I use to diagnose my radio system for these problems.
An example of a watt meter
http://www.focalprice.com/YOE03B/100...Fc2a7QodgnSbkA
Most hobby shops carry some brand of one as they are commonly used in rc
Hope this helps
Tom M.
Binding in the linkage:
Remove the servo horn & check for any bind in the linkages.This can cause a servo to pull more amps than either of your bec 's can provide & cause the motor to cog on take off.
Check your servo:
Rapidly turn the steering back & forth ( with the transmitter) & check if the servo is getting hot.
A receiver battery pack of 1700ma should be able to supply more amperage than a 10 amp bec.
Also like was mentioned earlier your main battery could be weak.
A watt meter wired in line with your bec or servo would tell you if you are exceeding your bec's ability.
A Watt meter is what I use to diagnose my radio system for these problems.
An example of a watt meter
http://www.focalprice.com/YOE03B/100...Fc2a7QodgnSbkA
Most hobby shops carry some brand of one as they are commonly used in rc
Hope this helps
Tom M.
#12
Tech Regular
What did you connect the input of the BEC to? Take a picture if possible.
#13
The bec is soldered on right at the deans connector on the esc
And yes the polarity Is correct
And yes the polarity Is correct
#15
We turned the bec up to 6v
I'm not sure how high I could go
I run 2s 6000 packs
The reciever pack is 5 cells 1700
I'm not sure how high I could go
I run 2s 6000 packs
The reciever pack is 5 cells 1700