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Mikado Modellhubschrauber . GrandRC . CanoMod

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e-Electric General Discussion > Bec shutting down ?
 
 
bathmagic
Senior Heliman
Location: Berwick,Victoria, Australia

Questions for the experianced..

I have a razor e set up as follows

NEU 15152y
HV 85
fut 611
fut 9550 servos
Western robotics 5amp bec

Problem i have is this

since fitting the bec (which is soldered to where the battery terminals connect to the HV85) 2 times when flying constant high current drawing manouvers eg tick tocks the machine has shut down and fell out of the sky.

What i have noticed is that the head speed seems to hunt a little (which it doesnt any other time) and then shuts all power off.

when i have run over to the machine the speedy AND the bec and not hot ?

My thought was with all digital servos and the gyro running of this BEC it cant handle the spikes in current draw and shuts off, and my dx7 goes into fail safe which would of course shut the motor off.

when it has crashed onto the ground i have quickly disconnected the battery so im not sure if the radio gear is working still or not.
When i get it back to the bench for all the onlookers to check out and plug in a pack it all works again.

This is twice the same thing has happened with the same result !

Luckly the razor is extreamly tuff and only seems to suffer a broken landing leg , bent main shaft and broken canopy, NOTHING else

Thanks for your input guys

3DMP , Vbar 600 "Innovation" The key to success !
04-22-2008 04:01 AM
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helicraze
Veteran
Location: Victoria - Australia

Its seems to be that the low voltage when the head speed bogs is making the receiver re-set.

Try:

1) I think best to get the new quickconnect software on your receiver
or
2)get a separate flight pack for the BEC
or
3)try another lipo maybe?
04-22-2008 06:10 AM
 
 
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A Main Hobbies . Boca Bearings . Modefo's RC Helicopters

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e-Electric General Discussion > Bec shutting down ?
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