AP2000i Channel 4 for GY401 - Won't stop blinking HELP!!

[borneobear]

Okay, so I'm setting up my flybarless Swift. I use Channel 5 on my Receiver for my 2 x GY401 (aileron / elevator) gyros.

I therefore need the 4th Channel on the AP2000i to set the gain for my Tail GY401 gyro.

But when I hook up the yellow wire to the AP2000i Channel 4, the gyro won't stop blinking.

I've played around with the Ep4H and Ep4L, and the Trm4 %, and the Rev4 (Nor / Rev) options, and none of them works (I've done all possible combinations, and its still blinking).

Anyone can help me out on this?? Its really frustrating as this is the only thing that seems to not be working out for the whole set up.

Thanks in advance.
Borne :dontknow

[MarkWebber]

You do have the connector installed correctly, i.e. the wire is on the l/h side of the slot?

That is my only suggestion. When I connected mine to the AP2000i, all I had to do was add % to Trim4 and it was right into HH.

[borneobear]

Hi Mark. I was hoping you'd be around.
Yes, the wire is in the right slot.

The funny thing is, when I first slotted it in, it went straight into HH. NO problem.

But after I had connected the other two gyros, it started to blink. The other 2 gyros are connected to the 5th Channel on my Rx for HH / normal gain control.
I don't see how this can affect the tail gyro.

I've done the "use spare servo" swap between Channel 5 Rx followed by adjusting the Servo trim on the AP2000i Channel 4, then reconnecting the yellow wire, re-start... but it still doesn't work!

sigh.

I just don't get it.
:arggg:

[MarkWebber]

For the other 2 gyros that are hooked to the rx, are they performing properly? I assume you just Y connected their gain wires together?

If they are both working properly on the rx ch. 5, I can't imagine how they'd affect the tail gyro plugged into the AP2000i. Especially when you said it worked initially.

Perhaps, confirm that the tail gyro gain is working correctly by connecting it to the ch5 lead again and switching it between HH and rate.

Is the slot#4 on the AP2000i still responding correctly if you duplicate the servo swap trick again?

[borneobear]

Yes. I've swapped the Tail gyro gain wire to Rx channel 5, and it works perfectly.

Did the servo swap on AP2000i, and the servo moves with no problem by the Trim adjustment - positioned it exactly as per on Rx Channel 5 - but tail gyro still continues to blink when installed.

Just to confirm that all 3 gyros can work, I installed the 2 Y connected gyros to Channel 5 and the tail gyro gain on Channel 7 of my Rx. All 3 works fine.

So the issue is with the AP2000i setting - just can't figure out what. Is it possible I'm running the old firm ware?? I got this unit from you Mark, about 3-4 months ago.

[MarkWebber]

Which swashplate type are you using?

[borneobear]

I'm using futaba radio 9CHP.
On the radio its SWH1 (Mechanical Mix).
On the AP2000i its SR-3.

[borneobear]

Mark,
I think I've figured it out:

When the AP2000i initializes, it searches for the signal from the Aileron and Elevator servos. In my case, the signal from my 2 X gy401 gyros.
The gyros take a few seconds to initialize before it sends out signal to the AP2000i.
In that 2 seconds of waiting for a signal, the AP2000i says "NoSignal".

During this period of "NoSignal", my tail gyro on the AP2000i Channel 4 is also waiting for a signal (to go HH or Std). When it doesn't get any during the 2+ seconds of "NoSignal", the gyro goes into Non HH mode.
No amount of signal for the Channel 4 trim will bring it back to HH, as it was not initialized in HH.

I don't know how you do it on your Raptor, but thats how it is on mine.

Any suggestion? :dontknow

Borne

[MarkWebber]

Borne,

Forgive me, please. I went to check out my Raptor. It turns out that I never set it up for AP2000i to control the tail gyro. That was only on my gasser. So I did not realize that it was the gyro initializing that was the problem. At this point, the only thing I could suggest would be to interupt the power lead to the tail gyro with a switch. After the cyclic gyros initialize you could switch on the tail gyro.

Angelos might have another suggestion but that's the best I can come up with.

[borneobear]

That sounds like a workable idea Mark. Wow! Just add a swith to the gyro red wire. Genious!!

It should work. Will post if it does.
Thanks!!

[borneobear]

Hi Mark... I tried the switch idea.

IT WORKS!!!!!!!!!!

:D :D :D :D :D :mrgreen: :mrgreen: :mrgreen: :D :D :D

[MarkWebber]

That's great :D