View Full Version : Problems setting up the DX 7 - Giving me a headache
Catastrophe
09-03-2009, 02:08 PM
So im trying to setup the DX 7 to my heli, watched finless setup video over and over, think i have the model all set up correctly on the DX 7.
But things are not quite as they should be judging by this guide:
http://www.digimemphoto.com/guides/backguide.htm allthoug its for DX 6 the following should apply for me aswell:
Move the right stick (cyclic) forward. The Channel 3 servo arm should move up while the Channel 6 and 2 servo arms move down. The opposite applies when the right stick is pulled back.
If this is not the case you will need reverse the Channel 3 servo.
Now Channel 3 (elevator) does move up and channel 2 (Aileron) down, Channel 6 (pitch) however doesnt move at all, but channel 6 is working on the throttlestick.
How do i fix this?
Another problem i have is i cant spool up, no reaction on the motor, yes TH is off.
TheBum
09-03-2009, 02:30 PM
It almost sounds like you have the channel 6 (pitch) and channel 1 (throttle) cables swapped. It would explain why the pitch servo doesn't move at all on elevator inputs but does move on collective, assuming the throttle curve is still linear. What happens when you try applying aileron?
Skarn
09-03-2009, 02:31 PM
If your ELE is going in the wrong direction (swash tilts forward with right stick moving down), then you need to go into your swash mix and reverse whatever percentage you have there. For example if ELE is +60 make it -60.
The same goes for AIL.
Watch the Finless CCPM1 and CCPM2 setup vids, it's all covered in there.
Good luck,
Skarn
mstram
09-03-2009, 02:35 PM
Have you set the swash type to 3 (120 CCPM) ?
Catastrophe
09-03-2009, 02:44 PM
It almost sounds like you have the channel 6 (pitch) and channel 1 (throttle) cables swapped. It would explain why the pitch servo doesn't move at all on elevator inputs but does move on collective, assuming the throttle curve is still linear. What happens when you try applying aileron?
Might be on to something here, when i apply Aileron the Aileron servo moves like it should, but on the DX 7 servo monitor screen it appears i should be applying pitch aswell. Wich i do not.
Elevator looks correct Skarn, thanks. I will watch the CCPM video's
Mstram, yeah set the correct swashtype: 3 servo's 120 ccpm
Catastrophe
09-03-2009, 03:09 PM
You where absolutely right The bum, i still cant get the motor to spin. But all the servos are working as intended :D Atleast im getting somewhere.
For some reason i put the throttle into the recievers battery plug :S
Throttle is where it should be now, but my motor is giving me a series of beeps, dont know whats up with that.
mstram
09-03-2009, 03:43 PM
The beeps are the motor ESC's "code" trying to tell you something.
Do they sound different than when you had it working ?
You could try reversing your throttle channel.
I don't know if ESC beep tones are "standard", ideally if you have documentation for it, it should explain it.
If you don't know what model the ESC is, what is the heli name / model?
One of these ESC programming cards really simplifies things :
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=2169&Product_Name=TURNIGY_BESC_Programming_Card#
Catastrophe
09-03-2009, 03:45 PM
Deffinatly sound different than it used to, just a series of beeps. Not covered in the manual :S
I Will try to reverse the channel, thats a great tip thanks.
:edit: sweet mother of jesus, haha i reversed it and turned it on. that made the motor spin atleast......at full throttle! I do not have blades on of course, hmm weird. (well not really, but that it started at all)
Catastrophe
09-03-2009, 03:52 PM
Ok reversed it, and what i mentioned in the previous post happened.
So i reversed it back to normal, and everythings working as it should =)
Thanks mstram
mstram
09-03-2009, 03:54 PM
Deffinatly sound different than it used to, just a series of beeps. Not covered in the manual :S
I Will try to reverse the channel, thats a great tip thanks.
Which manual? ... Do you have one specifically for the ESC?
Is the ESC labelled ?
If it's a Turniqgy or HobbyWing this manual should work :
http://www.hobbywing.com/upload/manual/ESC_e.pdf
Catastrophe
09-03-2009, 04:02 PM
I have the manual =) its a KDS 40A esc. They have it for download at theyre site.