Control twitch

[dshriver]

Hello!

I am having some issues that I think are due to an issue with my Spirit 2. I'm setting up the Spirit 2 in my Synergy E5s right now. Sometimes all the servos just twitch. They twitch for just a second then move back to the commanded position. I've tried 2 different receivers and the issue persists with both of them. I did a factor reset of the Spirit but that didn't help either. I'm running firmware 2.8. Below is my setup.

Futaba r7008sb receiver
Futaba 18sz transmitter
Spirit 2 FBL
Spirit 2 connection to RX via S.Bus2 using Spirit telemetry cable
Kontronik Kolibri 130 ESC with BEC set to 8.0v
Futaba HC500 cyclic servos
Futaba BLS276SV tail rotor servo

I'm attaching my setup file.

Could there be something wrong with my Spirit 2?

[ZeXx86]

Hello,

you can try if the problem will persist when receiver is connected with a direct cable.
Please connect servo cable at the S.BUS port, not S.BUS2.

Do you use FrSky integration cable, am I right?

[dshriver]

Hello

I tried an sbus cable last night. This did fix the problem.

Yes I’m using the frsky cable for sbus2. I would like to use sbus2 so I can get telemetry.

[ZeXx86]

Great, could you let me know how the receiver was powered up?
If S.BUS2 is used, nothing in the S.BUS port should be connected.

[dshriver]

The spare power lead for the ESC is connected to the aux2 port. The primary lead from the ESC is connected to the receiver on channel 3 for throttle control.

[ZeXx86]

Hello,

what Futaba modulation you are using? Is it FASSTest 12/16ch?

[dshriver]

FASSTest 18ch

[dshriver]

Any advice on how to fix this?

[dshriver]

Hello Tomas

Any update for me?

[ZeXx86]

Hello,

we will check tomorrow with Futaba 16sz once I will be back in the work.