Align 550E V2, GT5.1 and Taranis

[Jones791]

I am migrating across to Taranis / FrSky from Spectrum (Currently have a DX8 and AR7200BX)

Only bummer is not being able to reuse the AR7200BX due to the integrated receiver in it... but I do have a GT5.1 floating around from a previous project.

Anybody have some working GT5.1 configurations for an Align 550E V2 (DFC)? I have stock servos (so a bit nervous of the tale after reading here).

Any tips for the Taranis setup? Was thinking of using the S.BUS, and am going to have a play tonight.

[Bladecpnitro]

Spektrum DM 9 Module will make it bind to Spektrum stuff.
http://www.spektrumrc.com/Products/D...rodId=SPMMSJR7


I'm wanting the Taranis as well. The module is cheaper than buying a bunch of new RX's probably.

[Jones791]

I'm keen to get across to FrSky, the telemetry is much better, and I don't want a 2nd antenna!

You get signal strength and receiver voltage straight out of the box, can add battery voltage for about $10. To do that in the spectrum world it will cost you about $200

[Jones791]

Can somebody explain the relationship between the Total Gain (CH7 for me) and the P values for Tail and Swash? I am a little confused.

Have the 550e flying pretty well, to be honest I am surprised how nicely it is flying with pretty much straight out of the box settings. My only problem is a reasonable tail wag on spool up, as soon as the head speed comes up, or I start to hover the Tail is pretty solid, no wag and very strong. I am playing around with the Tail P setting, so will keep you posted.

My config at the moment:

Total Gain = 100
Swash P = 70
Swash I = 70
Swash ID = 100
Swash D sense = 25
Swash Feed forward = 85
Swash hover = 4
Tail P = 70
Tail I 30
Tail D sense = 22
Tail D-DB = 10
Tail Sym = 0
Tail stick dyn = 25
Tail cyclic = 0
Tail pitch = 0
Tail smooth stop = 0

The only other issue I had was the Swash zero point. on the AR7200BX at mid stick the servo's were perfect, zero degrees pitch, 90 degree arms etc. The GT5.1 I have had to use Pitch trim to get the swash to zero degrees at 50% stick. I am reluctant to adjust mechanically until I understand this as it was absolutely perfect before, and I would have thought 50% servo was 50%! Could be a spectrum to Taranis thing or a AR7200BX to GT5.1 thing???

Anyone got any ideas?

[mr_squiggle]

Total gain is the "base" inside which all other gains work. As such you should run your total gain as high as you can, then tune the PID gains.
I have a GT5 on a Trex 450 Pro running stock servo with no dramas, so no need to worry about it once setup correctly.
I found the tails on Aligns to lack authority in general, but any idea of the headspeed before the wag goes away? Have you checked your mechanical setup & made sure you have a few degrees of pitch to counteract torque?
Hit Google & look for the GT5 tuning guide by Gary Wright, it should help you out. If you still have questions re-post & you'll get the help you need.
Like you I was surprised how well the GT5 flies straight out of the box, it's a good little unit.


Citizen #186

[Bladecpnitro]

Originally Posted by Jones791

Can somebody explain the relationship between the Total Gain (CH7 for me) and the P values for Tail and Swash? I am a little confused.

Have the 550e flying pretty well, to be honest I am surprised how nicely it is flying with pretty much straight out of the box settings. My only problem is a reasonable tail wag on spool up, as soon as the head speed comes up, or I start to hover the Tail is pretty solid, no wag and very strong. I am playing around with the Tail P setting, so will keep you posted.

My config at the moment:

Total Gain = 100
Swash P = 70
Swash I = 70
Swash ID = 100
Swash D sense = 25
Swash Feed forward = 85
Swash hover = 4
Tail P = 70
Tail I 30
Tail D sense = 22
Tail D-DB = 10
Tail Sym = 0
Tail stick dyn = 25
Tail cyclic = 0
Tail pitch = 0
Tail smooth stop = 0

The only other issue I had was the Swash zero point. on the AR7200BX at mid stick the servo's were perfect, zero degrees pitch, 90 degree arms etc. The GT5.1 I have had to use Pitch trim to get the swash to zero degrees at 50% stick. I am reluctant to adjust mechanically until I understand this as it was absolutely perfect before, and I would have thought 50% servo was 50%! Could be a spectrum to Taranis thing or a AR7200BX to GT5.1 thing???

Anyone got any ideas?

The only way to get those servo arms back to a perfect 90 is to take the arms off and try a bunch of different arms at center stick regardless of the reason for them being off center. Chances are you can switch the 3 you have around and find a truer 90 on each of them. When I find one thats perfect I mark it R aileron, L ail or Ele.