I have just fitted an external gyro to the 12/20 Gyro I have (giving me a second gyro) and I am having problems with it causing the servo's it controls to pulse.
The pulse rate is slightly less than a second apart and causes the control surface to move 10% to 15% deflection.
It is not there all the time but comes and goes. Cannot find a trigger so far.
I have moved the the gyro external to the plane in the hope that it was just picking up interference from something but it has made no difference where the gyro is located.
The gyro is a simple one with a sensitivity control only. I have tried it at Max and Min sensitivity but the pulses remain, and at the same intensity.

Is this a known problem with using the external gyro connection, or have I missed a setting somewhere?
Would getting a Futaba GY240 be any better or would I have to go to something like the Futaba GY401?

Hi
Sorry for the delay. Could you please shoot a picture of the receiver wiring setup as well as the servo program setup and send it to us. [email protected] . Due to the holidays it is taking longer. We will get back as soon as we can.

Thanks and have a happy new year!

Gerhard

I am very happy you mention this, as I have exactly the same phenomenon in my L-39.

At first, I thought it is because of slow processor speed somewhere (which Weatronic confirmed could not be the case), but now that I read your post, I realize I have gyros on ALL three axis, and it might be simply caused because of the gyros (one dual axis GY352 and one single axis GY351).
I have reported this to Weatronic since I could notice it with my extremely fast servos (Futaba brushless BLS451's everywhere except flaps and valves) when rapidly moving around with the sticks.

Must say, it held me back for a while but I have flown again, and the pulses are so short that actually I could not notice it whatsoever in actual flight and now I do not worry about it any longer.

Nicolas.

I have not yet finished testing and setting up but at this stage it appears I have solved the pulsing problem.
The servo I had was a CSM brand ICG 180, made in England. It might do for a simpler installation.
I replaced it with a Futaba GY401 which seems to be working fine, no pulsing so far.
Have not tried it live with the engines running yet but the nice part is I can now switch gyro sensitivity and mode from the transmitter.

Should the gyro's be set for digital servo's if I have digitals on the channels it controls?
Or will that harm the Weatronics unit?
It's only that they warn about digital settings harming analogue servos.

Hi Guys,
I have a little metal demo model that I use for showing the Weatronic versatility at shows. I too noticed that the servos that are attached to the Gyro function have a jitter every once in a while, especially if the model is not resting on solid surface. Turns out that the movement of the control surfaces is causing a very small rotation moment that in turn reacts through the receivers Gyro to over counter react and keep the jitter going. Once I take the gain down or set it on a more solid or damped surface, it stops immediately.
A model standing on its gear with the tires etc. can be very sensitive or springy in that respect.
Support both wings on something solid and it should disappear.

Gerhard