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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › shut off in flight help!
04-09-2014 04:22 PM  5 years ago
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wc_wickedclown (RIP)

rrProfessor

long beach calif

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shut off in flight help!
could the reason be it shuts off because i had cut off voltage to low ?

Watch at YouTube

Watch at YouTube

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04-09-2014 05:50 PM  5 years ago
Trexwilly

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FL USA

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WC can you open the log, and then on top click view, and select the last session so we can see a better log of just that flight...
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04-09-2014 06:11 PM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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Trexwilly
WC can you open the log, and then on top click view, and select the last session so we can see a better log of just that flight...
ok give me 15 min brother wil
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04-09-2014 06:23 PM  5 years ago
Trexwilly

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cool
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04-09-2014 07:18 PM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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Watch at YouTube

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04-09-2014 10:41 PM  5 years ago
Trexwilly

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Yeah WC you got it, the highest number will be the last session. It looked like the Throttle signal went to 1.3 and that's why the controller shuts off... Were you messing with the Auto bailout?
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04-09-2014 10:53 PM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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Trexwilly
Yeah WC you got it, the highest number will be the last session. It looked like the Throttle signal went to 1.3 and that's why the controller shuts off... Were you messing with the Auto bailout?
nope

how can you tell the throttle position ?

my curves are 0 30 30 30 30 70 70 70 70 70 100 100 100 100 100
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04-09-2014 11:50 PM  5 years ago
rcflyerheli

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Granbury, TX USA

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To me, it appeared that the motor shut down due to a current peak when you did the punch out. If that was a fresh pack, you should not have hit an under voltage condition at 1:20 of flight.

I run my low voltage cutoff at auto/3.5v/cell and I can do what you were doing in the first video for 6 minutes and come down with about 3.7v/cell.
Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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04-10-2014 12:01 AM  5 years ago
Trexwilly

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This line I have highlighter in red and the corresponding scale on the left are what the controller is seeing for Throttle...

The lowest point is true zero, needed to arm the ESC, the next "step" is most likely TH, a "near zero" for the auto rotation, the next two must be 70% and 100% it is measured in Milliseconds I believe

This is a guess, but
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04-10-2014 12:06 AM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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rcflyerheli
To me, it appeared that the motor shut down due to a current peak when you did the punch out. If that was a fresh pack, you should not have hit an under voltage condition at 1:20 of flight.
I run my low voltage cutoff at auto/3.5v/cell and I can do what you were doing in the first video for 6 minutes and come down with about 3.7v/cell.
i lowered the pitch and the head speed

think that will help ?

and should i upgrade the motor or esc or both ?

and i had a brand new 50c packs 5000 mah i figured maybe the fresh pack had to much power ?

i want to be able to run 2000 rpm head speed
2100 top.

either the motor or esc cant hack it ?

wish i could have attached my castle log file to my post.
thank you

what could have caused a under voltage condition with new packs ?
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04-10-2014 01:01 AM  5 years ago
rcflyerheli

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Granbury, TX USA

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Without actually seeing the voltage trace, as well as the current trace, I'd still want to take a hard look at your current limiting values. I had a buddy that was having similar issues on his T550, and it was simply shutting down due to the combination of motor and ESC. His was the new DFC kit with the 730 motor and it was just too much for his 80a ESC.

We swapped it out to a 120, and it has run with no issues since.
Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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04-10-2014 01:45 AM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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rcflyerheli
Without actually seeing the voltage trace, as well as the current trace, I'd still want to take a hard look at your current limiting values. I had a buddy that was having similar issues on his T550, and it was simply shutting down due to the combination of motor and ESC. His was the new DFC kit with the 730 motor and it was just too much for his 80a ESC.
We swapped it out to a 120, and it has run with no issues since.
would that be in my log file ? maybe i can email it to you
rr does not have support for the cc file

and i think i may need to put this bird on the shelf until
i can buy a cc 160 esc and sell the cc 120

and thank you
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04-10-2014 02:33 AM  5 years ago
rcflyerheli

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Granbury, TX USA

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Which motor are you running?Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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04-10-2014 02:37 AM  5 years ago
MMarozas

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chicago

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It sounds like the One Way Bearings lets go in the vid. Try holding the motor and see if you can spin the blades backwards. If you can the bearing is bad.
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04-10-2014 02:46 AM  5 years ago
rcflyerheli

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Granbury, TX USA

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It sounds like the One Way Bearings lets go in the vid. Try holding the motor and see if you can spin the blades backwards. If you can the bearing is bad.
Very good point. I wasn't thinking along that line.
Logo 700, Specter 700, Goblin 700, Trex 700DFC, Gaui X7, Logo 690SX, Logo 600SX; Trex 470 Trex 500
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04-10-2014 03:01 AM  5 years ago
BobOD

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New York- USA

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I think you should pay more attention to what Trexwilly is saying. It looks like the esc was commanded to shut down.

That would be either commanded by the TX throttle channel or maybe a failsafe action in the RX.
Team POP Secret
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04-10-2014 03:03 AM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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here is the log file

700mx 510 kv
http://rc.runryder.com/gallery/78129/
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04-10-2014 03:04 AM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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BobOD
I think you should pay more attention to what Trexwilly is saying. It looks like the esc was commanded to shut down.
That would be either commanded by the TX throttle channel or maybe a failsafe action in the RX.
Team POP Secret
should i try resetting the fail safe ?
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04-10-2014 03:12 AM  5 years ago
BobOD

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New York- USA

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What RX?
What is powering the RX?
Team POP Secret
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04-10-2014 03:18 AM  5 years ago
wc_wickedclown (RIP)

rrProfessor

long beach calif

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BobOD
What RX?
What is powering the RX?
futaba r617

7.4 lipo
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