RunRyder - dx7 unbinding

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Radio - JR & Spektrum DSM > dx7 unbinding

seflyer
Senior Heliman
Location: Northern California, Redding

anyone else have this happen? made 3 flights with the trex and two with the 99se x-cell, after the second x-cell flight we were double checking some pitch settings and the shut everything down and refueled, when turned back on, no connection? came home and rebound the system and everything looks ok. anyone else ever have this happen? using the 7000 rec in the x-cell and the 6000 in the rex

My heli is right side up -- the world is upside down

01-07-2007 Over year old.

OICU812
rrProfessor
Location: Grande Prairie, Alberta, Canada

When you set failsafe did you have the throttle 100% down and the digitrim down as well? This has happened to a few that did not. You must do your final binding when all your settings are done and have your diig trim 100% down as well as stick etc for it to recognize full off. Also the DX7 looks for a perfect connection and communication, if it does not see that it will not engage.

...Once upon a time there were Nitros, flybars and frequency pins...

01-07-2007 Over year old.

seflyer
Senior Heliman
Location: Northern California, Redding

i dont recall if the trim was all the way down, but he throttle was at low stick, i will rebind again after verifying this

My heli is right side up -- the world is upside down

01-07-2007 Over year old.

cptsnoopy
Senior Heliman
Location: Phoenix, AZ USA

I have had some issues getting the DX-7 to bind but usually it works on the second or third try. I have had no issues with the DX-7/AR600 or AR7000 unbinding. The only unbind I had was with the DX-6 and an AR6000, that was during flight and it destroyed the Heli. I still have a lot of faith in the system and continue to use it.

If you did not try binding several times, you should give it a go next time it happens.

I am not sure binding is the correct word to use as we "bind" the receiver with the Tx and then it makes a connection when you turn it on without the bind plug in. The orange lights being on (and commanded servo movement) after turning on the Rx with the Tx already on is what I am refering to.

01-07-2007 Over year old.

seflyer
Senior Heliman
Location: Northern California, Redding

i have not had any problems binding the system, it just worked for the set up and when turned back on after fueling it did not.

did i not make this clear? this happend after two flights that day, between flights we checked pitch and made a mechanical adjustment, not electronic, this was done to center the pitch curve, was at +12 and -10, centered the curve to +/- 11 at each end, done long swash links, as all other geometry is correct.

My heli is right side up -- the world is upside down

01-07-2007 Over year old.

Rum95
Senior Heliman
Location: Puerto Rico

Was the bind plug remove before turning/removing the power off the rx? Did you rebind after the setup?

01-07-2007 Over year old.

seflyer
Senior Heliman
Location: Northern California, Redding

yes, this happened at the field while double checking a mechanical set up, bind plug was not installed, was not even present. had to rebind the system when i got home. no plugs or settings were changed, just fueled up as stated, then would not connect when switched on.

My heli is right side up -- the world is upside down

01-07-2007 Over year old.

Paul Beard
Senior Heliman
Location: San Jose CA

If you un-intentioanlly put the transmitter into bind mode with the receiver not in bind mode, the transmitter will assume that it's bound to an AR6000 and go into DSM1 mode.

This is usually the reason behind this loss of binding on the AR7000s

Paul

01-07-2007 Over year old.

HOMEPAGE

hrosee
Senior Heliman
Location: Richardson, Texas

Paul,

I tried that and I didn't loose the bind.

Here is what I did.
1. Turned on the transmitter with the bind button down but no receivers on.

2. Waited a while so it would get good and confused.

3. Turned it off and on and then turned the receiver on that it was bound to and it was still bound just fine.

4. I rebound just to be safe.

Maybe I didn't understand what you were saying. I am trying to figure out what people are doing wrong so I don't do it. But so far I have 10 models hooked up to my DX7 with all 3 receivers (AR6000, AR6100, AR7000), and cannot make the system fail.

Wonder what I am doing right that some of you aren't?

Harold

01-07-2007 Over year old.

HOMEPAGE

hrosee
Senior Heliman
Location: Richardson, Texas

Well,

I went back again and figured out how to make the bind go away.

1. On a model that is already bound and working fine, turn on the receiver as normal WITHOUT the bind plug.

2. Turn the transmitter on with the bind button held down. You can then let the button go but don't turn the transmitter off for at least 20 seconds.

3. Turn off the receiver and then the transmitter. The receiver must be turned off FIRST.

This exact sequence will cause the system to unbind. You can rebind it and everthing will be back normal.

I can see where someone could do this by accidently thinking they had the bind plug in the receiver unbinding by mistake.

I have read a couple of post where they claim the system came unbound in flight and they crashed. I doubt that happened. I would bet something else caused the crash.

JMO.

Harold

01-07-2007 Over year old.

HOMEPAGE

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Radio - JR & Spektrum DSM > dx7 unbinding

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