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HelicopterRadio - Servo - Gyro - Gov - Batt › ATG V3 Gov over revs in between flight... Need help .....
01-16-2011 12:49 PM  7 years agoPost 1
JJ-TREX450

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Saginaw, MI - USA

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I seriously need help with my ATG V3 governor.

Recently I've started facing an issue with ATG V3 governor but don't know the cause of the problem.
The ATG V3 governor is being using on my Raptor TT X50 with an OS 50 hyper engine along with SAB 50 tuned pipe.

ATG V3 Governor settings are as follows:
Normal 1700
Idle 1 1800
Idle 2 1900

Now here's the problem i'm having... in between flight all of a sudden the engine starts to over rev for few seconds and later get back to it's original state as defined in ATG V3 governor.
I.e - If the governor is set at 1700, for few second it's will go above 1700+, and get back to it's original state.
Earlier, I thought it might be due to the sensor, but upon check that was fine.
Here's the way it was tested. The problem existed while using the Spektrum backplate sensor as well as the ATG V3 sensor. Along with this the red light turns on, when the magnet passes over the sensor. Therefore that apears to be great.

I'm using the same ATG V3 governor on my vibe 50, and that works great. I don't know what wrong with the ATG V3 governor installed on my TT x50.

Please advise to fix this issue.
Thank You

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01-16-2011 12:54 PM  7 years agoPost 2
Frank Bostwick

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Cincinnati Ohio

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If you have confirmed the sensor is working, I would switch out the throttle servo.

RIP ROMAN

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01-16-2011 01:04 PM  7 years agoPost 3
JJ-TREX450

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Saginaw, MI - USA

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The servo I'm using on throttle with ATG V3 is Hitec HS5945MG.
Are you sure that it might be the servo and not the ATG unit its self?

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01-16-2011 01:27 PM  7 years agoPost 4
Frank Bostwick

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Cincinnati Ohio

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No Im not sure. Troubleshooting often involves confirming that each component that CAN cause the problem is eliminated one by one. at least thats the way I go about it. Problem, what can cause the problem, then what is not causing the problem.

RIP ROMAN

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01-16-2011 01:28 PM  7 years agoPost 5
Frank Bostwick

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Cincinnati Ohio

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One thing Im not clear on, You are using 2 differant sensors? A back plate and mags?

RIP ROMAN

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01-16-2011 03:18 PM  7 years agoPost 6
MarshallB

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Middle Arkansas

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First thing I would do is re-calibrate the atg with the throttle trim at least mid way up and with a linear normal curve! Sometimes this will fix something if something went wrong the first setup! Worth a shot.


CurtisYoungblood.com
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Spyder Batteries

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01-16-2011 07:07 PM  7 years agoPost 7
JJ-TREX450

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Saginaw, MI - USA

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FBoss:
I'm not using two sensors. Whereas, when I installed the ATG governor, I went with the Spektrum backplate sensor as it's much easier to install. In flight, when I noticed about the over revs i thought that the spektrum sensor didn't worked out. Therefore, I removed the spektrum sensor, and installed the ATG sensor and the problem is yet not resolved.

Marshall:
At the time of installation, I calibrated the ATG governor along with the Throttle as per manual (Trim in the mid along with the linear throttle curve) several times. With the spektrum sensor as well as the ATG sensor.

I might retry by factory reset, but i believe it might notb resolve the issue.

As of now I even checked all the fuel lines, and all are new and in great condition. Now i'm stucked...

What else to check...

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01-16-2011 07:14 PM  7 years agoPost 8
rocket_33

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Mount Pleasant, Michigan USA

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If it weren't so cold I would say come on over and let's see if we can get it fixed...but I stay indoors during this weather lol.

I used the backplate sensor with my ATG and never had an issue. I would go through and check a couple of things.

First I would try swapping out the throttle servoe. I did have one go back last year and it would do similar things to what you describe (except for longer....one flight I had to fly around until I ran out of fuel as it would not come down).

The second I would thoroughly and completely look over your wiring from the sensor and to the throttle servo. Look for possible nicks, cuts, or breaks that could be causing you to loose signal.

My guess is you will find something. If not then I would go through and look at your radio setup, make sure you have nothing that is shutting off the ATG at certain stick positions.

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01-16-2011 09:06 PM  7 years agoPost 9
MarshallB

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Middle Arkansas

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Have you tried setting up a throttle curve to make sure it doesn't do anything out of the ordinary? I assume it is not running lean anywhere? I also assume the throttle linkage is linear as well? Just throwing out some ideas!


CurtisYoungblood.com
Next-D
Spyder Batteries

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01-21-2011 07:09 AM  6 years agoPost 10
JJ-TREX450

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Saginaw, MI - USA

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Thanks for all the help.
Realigned the Sensor & reprogrammed the whole ATG V3 unit, after a factory reset. Curtis helped me out in resolving this issue.
That resolved the problem.

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HelicopterRadio - Servo - Gyro - Gov - Batt › ATG V3 Gov over revs in between flight... Need help .....
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