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Home✈️Aircraft🚁HelicopterBeginners Corner › Centering servo
12-09-2012 01:09 AM  7 years ago
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Donnie Baker

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Indianapolis

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Centering servo
Can I center my servos by putting 4.8V to them so I can mount the servo horns before going in the heli?
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12-09-2012 01:13 AM  7 years ago
nappyroots2182

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Moline, il

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yup. i do this all the time.
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12-09-2012 01:48 AM  7 years ago
Donnie Baker

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Indianapolis

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For some reason it's not working for me. I plug a charged 4.8 NiCad directly into the servo and nothing happens.
What am I missing here?
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12-09-2012 02:15 AM  7 years ago
nappyroots2182

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Moline, il

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Are u plugging them into a receiver also?
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12-09-2012 02:28 AM  7 years ago
JKos

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Redondo Beach, CA

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Donnie,
The servo must be plugged into something that generates the proper control signal for the servo, not just power. Most people plug it into the receiver for their radio system. You'll need the transmitter on as well.

What radio are you using? Are you using a flybarless system?

Thanks,
John
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12-09-2012 02:42 AM  7 years ago
Donnie Baker

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Indianapolis

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Okay. That's where I an going wrong. I was trying to plug the servo directly into the battery.
Yes, Im using a vbar.
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12-09-2012 04:31 AM  7 years ago
marc8090

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Long Island, N.Y.

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Additionally, some servos such as certain tail rotor servos will only work when plugged into the gyro. They will not work when plugged directly into a receiver.
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12-09-2012 10:11 PM  7 years ago
dkshema

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Cedar Rapids, IA

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A servo goes where it is told to by the transmitter, with the receiver providing the means of interfacing the servo to your transmitter and its stick position. Position is set by WHERE the control stick happens to be.

Plugging a servo directly into a battery only supplies power, not position information. The servo won't go anywhere, because nothing is telling it to move, or for that matter, stay where it currently is.
-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz
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12-10-2012 03:17 AM  7 years ago
mustang67ford

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Central Pennsylvania

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You need the receiver and transmitter. For example, use an older fm radio setup and turn the receiver on without the transmitter, you will see the servos go crazy. You need the correct signals to the servo.Team HeliProz - Retired
AMA #513507
IRCHA #4011
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