wiring of AMT CTF button
 

Anyone know the wiring of a AMT CTF button, in the middle of an install and AMT are closed to Monday

RE: wiring of AMT CTF button
 

Hi,

What do you need to know. Please look at the AMT site (www.amtjets.com) and go to the download page for manuals ect.

RE: wiring of AMT CTF button
 

Not shown in the manual what we need!

There is a button that is wired to the ctf lead which is needed to setup the radio it is a new turbine but we don't have the button or ground support unit and trying to get it setup today !

RE: wiring of AMT CTF button
 

Do you have a picture? I have an AMT ... Cant picture what you mean?

Scott.

RE: wiring of AMT CTF button
 

In order to set the transmitter to the ecu you need either the ctf button which plugs into the receiver or the gsu
It is a new Pegasus

RE: wiring of AMT CTF button
 

Don't have pic

RE: wiring of AMT CTF button
 

I can't remember offhand but I'll take a look in my olympus manual when I get to the shop. I don't think I ended up having to use it for anything though, but I can't remember. I'll look it up, I know it's in the Olympus manual.

RE: wiring of AMT CTF button
 

Here the wiring diagram of the switch.

http://www.skyhigh-jets.nl/image/ctf%20diagram.png
Switch can be a (moment) toggle or push button type

If you want to go to single channel control please connect a JR lead to the futaba lead (white=orange, red=red, black=braun) and connect this to the switch input lead of the ECU.

Programming

1. Push CTF switch so it short circuit the white and black lead
2. Switch on the ECU. Beeps from high pitch to low pitch
3. Release CTF switch
4. Place transmitter OPS switch in emer. stop position. This can be a switch or trim input on your transmitter.
5. Push CTH so ECU will beep once
6. Place transmitter OPS switchin auto stop position
7.Push CTH so ECU will beep once
8. Place transmitter OPS switchin run position
9. Push CTH so ECU will beep once
10. Place Trottle in 0% (idle) position
11. Push CTH so ECU will beep once
12. Place throttle in 100% (max.) position
13. Push CTH so ECU will beep once
14. ECU will initialize and test if programming is correct.
Low, mid and high pitch beeps must be given by the ECU if OPS (operatings switch) is moved or throttle stick is moved.

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RE: wiring of AMT CTF button
 

Here two pages from the manual

http://www.skyhigh-jets.nl/image/ctf...20receiver.png
http://www.skyhigh-jets.nl/image/ctf%20programming.png

RE: wiring of AMT CTF button
 

brilliant thanks

RE: wiring of AMT CTF button
 

I assume then when using it as single channel it the CTF and the switch wire are wired straight through like below

RE: wiring of AMT CTF button
 

Correct

RE: wiring of AMT CTF button
 

Thanks really appreciate the replies under pressure to get it sorted today

RE: wiring of AMT CTF button
 

Ray ,
Im setting up a Pegasus in my Kingcat too . Im setting it up for the single channel operation.
I have a few questions:

1. Can one use a metal Kavan type filter instead of the plastic Festo filter supplied with the engine ?
2. Why is the filter suggested on the upstream of the pump(Suction side) in the manual?
3. Can the fuel solenoid be eliminated and replaced by a manual shut off valve ?
4. Does the CTF switch stay connected at all times and in the airframe ? Somewhere in the manual it says it can be removed.
5. What lead is the GSU connected to during the start up ?

RE: wiring of AMT CTF button
 

Hi,

I am wondering if all works. Please give me the engine number so we can also see was't happing with this engine/ECU.

Perhaps fully unnecessary but please keep in mind the failsave comments in the manual. Previous ECU software could only handle one channel operation if input seq. was from emer. stop - auto stop - running - throttle 0% - throttle 100% which match with a pulse length of 1ms to 2ms. If it's in the opposite direction a toggling beep (high and low pitch) could be heart after programming the ECU.

I hope this will help.<br type="_moz" />

RE: wiring of AMT CTF button
 

We could not get it to work in single ch mode, although the ecu beeped each time when pressing the CTF button for the different throttle positions, we could only get an alternating beep with nothing happening when we done the start sequence.

Thought initially it might have to do with the pulse width on the spektrum setup so tried 35mhz but no change.

We have now got it to work using 2ch mode and the three position switch. Would like if possible to use in single channel mode with the trim lever as we could do with the channels on the receiver.

Pegasus SN NL2313

RE: wiring of AMT CTF button
 

Xantos,

I have quite a bit of experience with both the Pegasus and Olympus. Not sure about your first two questions but here are my answers to the other three:

Ray ,
Im setting up a Pegasus in my Kingcat too . Im setting it up for the single channel operation.
I have a few questions:
1. Can one use a metal Kavan type filter instead of the plastic Festo filter supplied with the engine ?
2. Why is the filter suggested on the upstream of the pump(Suction side) in the manual?
3. Can the fuel solenoid be eliminated and replaced by a manual shut off valve?
Yes, the turbine will start and run normally but it's risky. If you fuel up with the manual valve open, fuel will get through the pump and into the engine and you will get a hot start (don't ask me how I know).
4. Does the CTF switch stay connected at all times and in the airframe ? Somewhere in the manual it says it can be removed.
Yes the CTF switch stays connected and I always keep mine plugged in and accessible (pic of my Olympus install below)
5. What lead is the GSU connected to during the start up ?
Telemetry lead

Hope this helps,

Craig

RE: wiring of AMT CTF button
 

Yes guys,

@Xantos:
The ECU for engine NL2313 is an older V2 version (HW 2.10 and SW Vx28D1) .
This version it was only possible to have a single channel mode if the fail safe pulse width was at the low side of the pulse width window. So lower the 1ms. If you program it wrong, so 2ms is emer. stop and 1ms is running at 100% throttle, the ECU falls into fail safe mode. Simple trick is to reverse your throttle channel in your transmitter. Please always test direction and positions with a servo.
We found a repair sheet in our administration of 04-11-2005. On this sheet I found that the starter was repaired and that Bennie has tested on 18-11-2005.

For readers of this tread: In the version from higher the HW 2.12 and SW Vx29 this is fixed. Due to hardware change the older ECU can't have a software update but always please mail use to get a clear answer.



@ Craig:
1. If this Kavan filter has the same mesh width as Festo it should not be a problem
2. This because the all particals will stick in the filter and not suct into the pump
Al other question already answered.

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RE: wiring of AMT CTF button
 

Thanks we will give it another go, but I do think I tried reversing already, but not sure as we tried many different combo's.

RE: wiring of AMT CTF button
 

Hi Craig,
Thanks for the info
What Fuel tanks are you usin ?
It looks a lot different than the standard 2 conformal tank set up on the KC

RE: wiring of AMT CTF button
 

Xantos,
Sorry, I wasn't clear about that. The pictures I posted were of the Olympus install in my Ultra Bandit. I made the CTF button accessible on the equipment tray in my U/B (not really necessary), whereas on my KingCat, I just stuffed the CTF under the tray after I programmed it. Likewise, I mounted the EDT plug ("telemetry") on the U/B equipment tray rather than just a loose lead.

This is what the Pegasus install looks like in my KingCat.

Craig

RE: wiring of AMT CTF button
 

What sort of plugs are you using? Any alternatives to the Rossi R8 ones we have tried keep blowing and dont have the GSU to make any adjustments

RE: wiring of AMT CTF button
 

It's probably the battery type that is causing your blown plugs. If you use other than Nicads (i.e. Lipos or A123) you will need to change the glowplug voltage settings in the ECU. I went through this myself after blowing numerous plugs of various brands.

Unfortunately, this can only be done with a computer and an AMT software program called Tool Kit. Not sure if it can be downloaded on line or if you have to get a disc from AMT. For what it's worth, here are the instructions for changing the plug values (if you can get your hands on the software).

Craig

RE: wiring of AMT CTF button
 

It is presently using 10 cell nicad, could this ecu have been setup originally say for air start on a lower voltage?

RE: wiring of AMT CTF button
 

I suppose so. I just know that when I was blowing plugs on my Pegasus, inculding the nearly bullet proof Dura Plug, the only fix was to change the battery voltage settings. For some reason, the setting is a little different for my Olympus than my Pegasus, even though they use the same ECU and battery setup.

FYI, you also need the ECU adapater that should have come with the engine to connect the ECU to a computer.

Additional FYI, if you have easy access to the glow plug, you can start your engine with a regular glow starter. It does not need to be connected for the start sequence to operate (like some turbines). At least it would save you a glowplug on each startup.