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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> ESC question
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ESC question - 10/24/2006 3:55:31 AM   
zach8202


 

Posts: 19
Joined: 9/7/2006
From: , IN, USA
Status: offline 		Ok, I just bought a 60 and a li-po, brushless motor and esc to go with it. Its my first heli so this is probably a stupid question...here goes anyway. So when the voltage of the li-po (or nimh) battery is reduced to 3v (assuming this is the cut-off) will my bird fall out of the sky or does the esc actually just reduce power to let you know you really need to ground it. Thanks!
       Post #: 1

RE: ESC question - 10/24/2006 4:18:02 AM   
Soccerking3000


 

Posts: 51
Joined: 10/23/2006
From: Solon, OH, USA
Status: offline 		well it shoudnt be 3 volts thats too low, but it depends on the ESC, programmable ones have different settings for what happens when the voltage goes below a predetermined amount ( which can be set by another parameter

(in reply to zach8202)
       Post #: 2

RE: ESC question - 10/24/2006 4:41:15 AM   
zach8202


 

Posts: 19
Joined: 9/7/2006
From: , IN, USA
Status: offline 		Ok, well it is coming with the walkera brand brushless esc. I would imagine you can't program it. The websites states this:

Brushless 30a ESC
Sustaining voltage: 6-17V
BEC current: 3.0A
Continuous output current: 30A
Instant max current: 50A
Inside impedance: 0.0044 Ω
Reversion: yes
Low voltage, cut electricity protection: yes
weight: 32.4g(approximately
Reversion: yes
Low voltage, cut electricity protection: yes

Any idea from that info as to what it will do?

(in reply to Soccerking3000)
       Post #: 3

RE: ESC question - 10/24/2006 6:19:23 AM   
Orion1024



Posts: 1384
Joined: 5/27/2006
From: Bolingbrook, IL, USA
Status: offline 		Well, before I got a LiPo monitor I over-discharged my battery with the Walkera ESC...it did not reduce power or anything. I think the Walkera ESC is either set for a very low cutoff (like 2.5V per cell) or it doesn't have a cutoff at all. You really should get a LiPo monitor like the HRPoly-X and land when it goes off at the voltage you have set (mine is set for 3.2V per cell)...don't rely on the ESC cutoff.

http://www4.mailordercentral.com/heliproz/prodinfo.asp?number=335444

(in reply to zach8202)
       Post #: 4

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All Forums >> RC Helicopters >> Electric RC Helis >> Walkera Helis - Dragonfly, etc.. >> ESC question
Page: [1]





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