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Futaba-RC . A Main Hobbies . Boca Bearings

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Aerial Photography and Video > PowerJazz program card issue
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

LOL, yea, i wont celebrate anything yet until i have one hovered pack at least 30ft of the ground followed by a safe landing, i dont trust anything these days

I will try tomorrow

Better stick my hair into the rx to check for static first

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
06-13-2008 11:52 PM
HOMEPAGE  
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Quote 
Better stick my hair into the rx to check for static first

At least you got hair to test with... LOL
06-13-2008 11:56 PM
HOMEPAGE  
 
 
fergus
Veteran
Location: Ireland

Chris,

Just one point on the program card settings. You could set the low voltage cut off to the lowest setting available. That way there is no chance of the powerjazz detecting low voltage before the pack is empty and cutting the throttle.

This feature is really only for lipo packs to avoid damaging the cells due to over discharge. This is not an issue with A123. By going to the lowest setting you effectively disable this feature and fly the packs until 'empty' (as they will still remain above the cut off threshold).

Just remember to time your flights like before and if you add more weight to the Heli then hover and time a 'test pack' or install the wattmeter to see if flight times are effected much.

Always be mindful of the sudden 'dump' in power when the A123's are fully depleted.

Regards

Fergus

Regards

Fergus
06-14-2008 12:04 AM
 
 
trackhead
Key Veteran
Location: utah

Now I'm the idiot.

I successfully programmed my ESC with the card. Then I decided to check it after powering down. Now when I power the card up, all lights come on, then off, then nothing. I can't get it to go into programming mode? Prior to this, everything was working great on the bench.

Also, does the red wire need to be cut on the ESC throttle lead?

With everything plugged in for flight, I can't even get the ESC to arm now.

Ideas?
08-02-2008 07:41 AM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Ok let's start from the beginning.

You have the ESC plugged into the ESC port on the card.
You have a wire from the program card battery port to the RX's throttle. Make sure this wire has three wires (white, red, black) and not just two (red, black).
You have the main Lipo batteries plugged into the ESC. If this is unplugged the red lights will not turn on.
You have the motor plugged into the ESC.

You have a RX battery plugged into your BEC.

Make sure the orientation of the plugs are correct. I had this happen to me before.

Turn TX and RX on. What happens?
08-02-2008 08:06 AM
HOMEPAGE  
 
 
rroback
Elite Veteran
Location: Irvine (UCI), Ca

I never connected program card to my receiver. I always just used a receiver battery.... most people forget to have a battery plugged into the powerjazz when programming.

Rhett... I can't fly, luckily the HC Profi Can!
08-02-2008 09:24 AM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

When setting the Full gas and Motor Off positions you'll need to connect to the RX.
08-02-2008 10:30 AM
HOMEPAGE  
 
 
TrexRookie
Key Veteran
Location: San Francisco, CA

when setting the full gas/motor off positions, should the endpoints of the throttle curve be at 0/100? also, is it necessary to have the motor connected?
08-02-2008 11:40 AM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Yes. Set a linear curve from 0% to 100%. I originally had mine set up incorrectly until Tabb noticed my percentages were off. When I set the curve everything was correct.

After setting up the Full Gas and Motor Off positions then you can set up your throttle curves.
08-02-2008 12:05 PM
HOMEPAGE  
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

Hey!

Ive experienced that theres easily a lot of pits to fall into here...

Last time i had problems with the throttle curve, i totally forgot that i had to use a straight throttle curve during the stick poss programming, ive simply made a "test mode" file on my 14mz with a curve like that, program the ESC as you like, and then switch back to the regular setup file on your tx.

What is also confusing is that Kontronik havent included that wire you need between the ESC and the rx throttle port (females in both ends) unles you have it, youll have to make one, at least i did...
And dont forget, it MUST have 3 wires, red/wht/blck otherwise it wont get the lead signal.

Also make sure the rx battery are fully charged, had trouble cause of that once...

And even if its not gonna happen, i ALWAYS remove the rotorblades during the esc programing, i dont trust this with my life

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
08-02-2008 12:42 PM
HOMEPAGE  
 
 
trackhead
Key Veteran
Location: utah

ESC wire is into ESC port on card, polarity is correct.
Custom wire/plug from throttle to "battery" on card.
Battery on BEC fully charged.

Transmitter on.
BEC on-all lights come on briefly, then off.
Plug in flight packs. Nothing.

Strange thing is, it worked initially, now it doesn't.


Happily I get to spend $800 dollars to replace to CCHV110's. We've all been there.
08-02-2008 02:56 PM
 
 
FLAP
Key Veteran
Location: Michigan

replacing it with....what? (I haven't been there yet)
08-02-2008 03:29 PM
 
 
daytonabeach
Key Veteran
Location: Oslo, Norway

Im not familiar with BECs, but could it be something there? possible to bypass the BEC so the rx gets power directly from rx battery?

Just a thought

Never argue with an idiot, he'll drag you down to his level and beat you with experience...
08-02-2008 04:33 PM
HOMEPAGE  
 
 
nooobs
Key Veteran
Location: Toronto, Canada

Derek

Make sure the flight packs are plugged in first. Then turn on the power of the BEC.
08-02-2008 06:00 PM
HOMEPAGE  
 
 
trackhead
Key Veteran
Location: utah

I had a nice morning. Woke up, poured my coffee and a bowl of cereal. Sat down to read Runryder and dumped my coffee and cereal all over the keyboard. Great start.

Anyway, I'll monkey with the PowerJazz later in the week. I miraculously got my CCHV110 working today.

Weird thing about the PJ is now the ESC won't even arm itself when plugged in. It's like the ESC is dead.
08-02-2008 06:28 PM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

No can't be.

It will not arm if the flight packs are not plugged in.
08-02-2008 06:31 PM
HOMEPAGE  
 
 
trackhead
Key Veteran
Location: utah

Noobs,

Flight packs are plugged in, BEC is on, radio is on, no arming of ESC.

It worked prior to using the programming card, worked briefly after, then I rechecked the settings, and now it doesn't work.
08-02-2008 06:35 PM
 
 
TrexRookie
Key Veteran
Location: San Francisco, CA

Did you remember to reconnect the ESC to the receiver?
08-02-2008 06:37 PM
 
 
nooobs
Key Veteran
Location: Toronto, Canada

The programming card is a weird thing. There is an order of operation.

Everything must be plugged in first before turning on the power to the RX. Otherwise nothing will work.

Not giving up...
08-02-2008 06:39 PM
HOMEPAGE  
 
 
trackhead
Key Veteran
Location: utah

Noobs,

I think I tried every mathematical order of start up, but I'll try again. Might be a day or two before I get to it.

T-rookie,
Yes, the ESC was plugged back in to the receiver.
08-02-2008 06:52 PM
 
 
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