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HelicopterScale Model RC Helicopters › Problems with the Stock Align ESC
11-21-2009 06:13 PM  8 years agoPost 1
rcmadness

rrApprentice

Midland, Texas - USA

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I just got through wrapping my Trex 450 with an A109 Heliartist fuselage and I am having trouble with the ESC. (Stock ESC)

When I give it a lot of collective the motor starts pulsing and scares the crap out of me. If I gently give it more collective it doesn't seem to do this and flies normally. Any ideas?

It does it even if the battery is fresh off the charger.

Trex-250-450se-450pro-500esp-600nitro-Predator Gasser

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11-21-2009 06:45 PM  8 years agoPost 2
Flint325

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xxx.xxx

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Pulse

Did you install lights?

You will need a higher amp esc.

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11-21-2009 06:52 PM  8 years agoPost 3
rcmiket

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El Paso,Texas

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Had the same issue turns out my battery was on its way out.
Mike

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11-21-2009 10:58 PM  8 years agoPost 4
rcmadness

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Midland, Texas - USA

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Flint325: Yes I installed lights but I have them turned off.

rcmiket: It does it no matter which of the five batteries I have tried. It still does it.

Thanks for the ideas.

Trex-250-450se-450pro-500esp-600nitro-Predator Gasser

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11-21-2009 11:02 PM  8 years agoPost 5
rcmiket

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El Paso,Texas

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So much for the easy way out. I'm assuming that you have checked though your ESC programing to be sure of your cut off settings.
Mike

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11-21-2009 11:48 PM  8 years agoPost 6
darrens

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United Kingdom

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I agree with Mike above, change the Low Voltage protection to the LOW setting in the esc programming.

He who dies with the most toys is the winner!

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11-22-2009 12:29 AM  8 years agoPost 7
rcmadness

rrApprentice

Midland, Texas - USA

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I went back through the programming and changed several of the settings.
Timing= low
Shut off = Med it had medium or high
Throttle response= normal

It seemed to help and I will also alter the pitch curve a little so it does not bite so hard.

I will keep tinkering with it and hopefully it will settle down.

Thanks for everyones input.

Trex-250-450se-450pro-500esp-600nitro-Predator Gasser

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