[NSRCA-discussion] JR question 9303 kill switch

[Dwayne Brown]

Please explain this set up for a 10X.  Thanks, Dwayne

 

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Troy Newman
Sent: Saturday, August 29, 2009 4:42 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] JR question 9303 kill switch

 

I just set up this mix
.and found out that the button is not available as a
switch to select to activate the mix.   The choices for the mix activation
are the MIX, AIL, ELE, RUD switches. Those are the d/r switches. I didn’t
realize that until I started to set it up. There is an easy way to skin the
cat, and Allan Worrest did it for us. I checked his method out and it works
like a charm. I have my 12X and 10X time in the air and programming than the
9303. The logic is all pretty much similar just takes a little fooling of
the TX to get the task done on the 9303 compared to the 12X. Thanks Allan. I
pride myself on knowing how to program these radios and helping guys out
with it. This time I was combining programming between the different radios
in my head before I actually went and programmed it.

 

So since you can mix any channel to any channel we need to do what is
described below.  Use a spare channel and have it controlled by the button.
In the case below like Allan describes he used AUX 4. This channel is
normally controlled by the rudd D/R switch. In the Device Sel menu you just
re-assign the channel to the button. Now the button is AUX4.

 

You could choose any of the spare channels and assign them to the button.

 

Then create your mix. I will amend what Allan says below. I prefer to not
over drive the throttle servo and make it bind. So you should not use 100%
for the mix value. I would suggest say starting with 30-40% and see how far
the servo travels. If it kills you are done. If its binding and over driving
the servo then reduce the mix value until binding stops.

 

The “THRO STK” part of what is described below is to only have the kill
function work below a certain throttle stick position. Meaning it adds
another switch on the throttle stick to arm or dis-arm the kill switch. If
you set the “thro-STK” value to say 25% then below ¼ throttle the button
will be enabled. If its set to 100% then below full throttle the button will
be enabled. I would suggest like Allan that you choose a number down low
below say 25 so that the button only activates at low throttle settings.

 

The idea behind this mix is to take the current throttle position and add
travel to it. If you choose a 40% mix you are taking the current throttle
position say 1/4throttle 25% stick. This would  be about L-75% on the output
to the servo.  So you are driving the servo to L-75% PLUS another 40% so the
end result is the servo drives to L-115% or to its kill position.

 

It would act the exact same as setting your travel adjust at 115%. Except
when you let go of the button the Travel Adjust is back to the normal
values. If you were at full idle stick and your travel adjust was 100% on
the Low side L-100 it would drive the servo to 140%.

 

 

If you are flying electrics I would suggest the toggle option. This way the
controller is getting full kill signal after you let go of the button. To
raise the throttle output position you then hit the button again and the
throttle comes back up. In this case I would set the mix as Butn to throttle
and set the values to 125% as the speed controller doesn’t have a mechanical
linkage to over drive. This would be a good safety to not accidently bump
the stick and turn on the motor. 

 

I always use the mix switch for my Kill
.this way I can flip it and the kill
stays on all the time until I flip it back. Also I can physically look at
the radio and tell if my kill is “ON” or off.

 

I know the in the 12X the buttons, aux trim tabs can be used as switches for
the mixing. The 9303 doesn’t offer this capability. 

 

Thanks again Allan, I appreciate the help brother. I guess my brain was a
little clouded with work, and the new baby. Alexander is smiling and
giggling now 9 weeks today. It’s pretty cool. Too bad I’m not on his radar
yet. Mama has the food, I’m just some bozo that stumbles around trying to
change him. He knows I’m not an expert at it
.

 

Hope this helps guys and explains what is going on.

 

Troy Newman

 

 

 

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
AWorrest at aol.com
Sent: Tuesday, August 25, 2009 9:29 AM
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] JR question

 

For the 9303, to make the trainer button a momentary kill switch, first go
to the DeviceSEL menu and set AUX4 to be activated by BUTN. Leave AUX4
output active.

In a linear program mix menu, mix AUX4 into THRO. In Pos1 lower position,
set the value to +100%. Set the THRO STK to some low value like 12 so the
kill will only take place when the throttle stick is in the idle position.

The only problems that some people may have is with the timer. If you use
the trainer button to start the timer, you will momentarily cause the engine
to go low. Most engines will not stop with a quick blip on the button that
is needed to start the timer. But if this is a problem, use the timer switch
on the front panel. The other thing is that killing the engine will stop the
timer. I find this to be a benefit.

Allan

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