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Other › ringing sound as i thorottle up
01-29-2012 05:11 PM  6 years agoPost 1
readytofly

rrNovice

tuvalu

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hi,

sometimes as i throttle the heli up, the motor doesn't start and i hear a ringing sound coming out from it.

the motor doesn't work, but the motor shaft kind of shakes. as it shakes, it makes the ringing sound.

it is the very same sound one hears when trying to spool up a motor that has one wire disconected, but in my case all wires are connected.

i've already checked all junctions and solders and the seem good as well.

i wonder what could be causing this problem. it only occurs when i interrupt a flight and land. a few seconds later, when i try to take off again, the problem shows up. however, it only happens 50% of the time, not always.

what does the ringing sound that comes out from the motor mean, please?

thanks.

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01-29-2012 05:48 PM  6 years agoPost 2
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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it sound like a esc setting problem, does your esc have a startup power adjustment or something like that ? if so set it higher, the higher the startup power, the faster and harder is the start. With small rotors or power trains that turn with less friction startup power isn’t a problem, but with large ones or power trains that turn with more friction, it can lead to a fairly rough startup behavior or in your case 50% of the time a motor stall on startup.

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01-29-2012 10:05 PM  6 years agoPost 3
readytofly

rrNovice

tuvalu

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hi,
the esc is an align 100a.
i'm not sure it has a start up power adjustment.
could it be that the soft start is contributing for the problem?
thanks.

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01-30-2012 02:13 PM  6 years agoPost 4
Richardmid1

rrProfessor

Leeds, England

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What motor? Either the esc doesn't like the motor or the esc is faulty.

60% of the time, it works every time!

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