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HomeRC & PowerAircraftHelicopterFlybarless Rotor Head SystemsFutaba CGY › CGY-750 Advisory
05-01-2017 04:09 AM  19 months agoPost 1
Dr.Ben

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Richmond, VA, USA

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Well, for the short length of time that this forum might be around, let me make you all aware of something.

The CGY-750 MUST ONLY be used in an SBus designated slot in the receiver. DO NOT attempt to use it with an SBus2 designated receiver slot. Check carefully the mode your receiver is in to make sure a mistake does not occur. If you try to use the CGY-750 with an SBus2 slot, the unit may spontaneously reset in flight and cause a crash. We have seen it happen recently, and the behavior can be reproduced. There are specific warnings in the newer transmitter instruction manuals about not using pre-Sbus2 peripherals in an SBus2 slot, but many guys are unaware that the CGY-750 does not support SBus2.

Let me know if this is unclear.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-01-2017 01:21 PM  19 months agoPost 2
ssmith512

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Indianapolis, IN USA

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Thanks for the info Doc.

Steve

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05-01-2017 02:07 PM  19 months agoPost 3
wjvail

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Meridian, Mississippi

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Thanks Ben. I have 4 750s and will recheck my installations.

On a side note... I, personally, will continue posting here as if an alternative to the apparent closure of this site is going to be found. I have chosen to proceed as if this site will continue on - for as long as that is possible. As I mentioned elsewhere, I very much value your input and hope you too continue to post.

Cheers,

Bill

"Well, nothing bad can happen now."

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05-01-2017 02:31 PM  19 months agoPost 4
Dr.Ben

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Richmond, VA, USA

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Thanks Bill. I'll continue to do the same. Maybe something can be done to preserve this valuble resource even in the face of a changing hobby and associated economy.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-01-2017 05:43 PM  19 months agoPost 5
knightofcarnage

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chicago

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Well, for the short length of time that this forum might be around, let me make you all aware of something.
Hmm
Maybe something can be done to preserve this valuble resource even in the face of a changing hobby and associated economy.
So does Futaba see the RC Heli market being dead? And we will not see a new gyro anytime soon. A nice SBUS2, 6 axis gyro.

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05-01-2017 11:10 PM  19 months agoPost 6
Dr.Ben

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Richmond, VA, USA

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I neither stated nor implied any relationship between Mark's hard times and what Futaba might think of the model helicopter marketplace. I'm sure Futaba will release its next generation FBL controller at some point in the future.

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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05-01-2017 11:45 PM  19 months agoPost 7
wjvail

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Meridian, Mississippi

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Can I say that I'm surprised to learn that serial information from the SBus2 port could be passed to the FBL controller? My understanding of the SBus2 port was that it was a receive only port for the purpose of receiving telemetry data from various sensors. Are you saying it is possible to plug the lead from your 750 into a SBUS2 receiver port and have it function even for a short period of time?

"Well, nothing bad can happen now."

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05-02-2017 12:53 AM  19 months agoPost 8
ssmith512

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Indianapolis, IN USA

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Sbus2 is bidirectional for sure. I have Sbus2 servos running on an Sbus2 port on my big scale turbine without issue.

Steve

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05-02-2017 01:06 AM  19 months agoPost 9
jbjones

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Columbus, Mississippi

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Massive Thanks, Dr. Ben. You likely saved me a brand new model. I only have a few test-hovers on it, but My 750 was plugged into the SBus2 port of the 7008SB. I've got it rewired and reset to mode B.

I'm new to Futaba; Bought the 18SZ after a few decades of flying JR. It is in the manual, to not use the SBus2 port for SBus components, but honestly it really didn't even register with me.

I owe you a big one, Dr. Ben. Thank you.

-JB

J. B. Jones

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05-07-2017 06:32 PM  19 months agoPost 10
KopterKat

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New Jersey

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Ben,
It's been a very long time since we spoke last, but I've recently returned to the hobby. This information comes at the perfect time because I have my CGY750 setup om SBus2.

Thanks for the heads up

Tom


FlipMode Squad

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06-04-2017 02:44 PM  18 months agoPost 11
wjvail

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Meridian, Mississippi

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Sooo... A new question. Is there an easy way to know which port, SBus or SBus2, to use. I've recently started playing with an iKon FBL controller. Currently it is plugged into the SBus port. Am I being conservative? Am I leaving something on the table by not using the SBus2 port.

Going forward, how should I know which port to use?

"Well, nothing bad can happen now."

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06-04-2017 02:51 PM  18 months agoPost 12
wjvail

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Meridian, Mississippi

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Sbus2 is bidirectional for sure. I have Sbus2 servos running on an Sbus2 port on my big scale turbine without issue.
Thank you for sharing. Until this thread I didn't know the SBus2 port both sends and receive.

So with my new knowledge I have new questions. What advantage is there to plugging something like a servo into the SBus2 port?

Can I use the SBus and SBus2 port simultaneously on the same model? Will the Serial information be streamed from both ports at the same time?

Per Dr. Ben's post, clearly some peripherals won't function properly using the SBus2 port so there must be some difference in the coding of the information from the SBus2 port. Which is the correct port for any installation?

"Well, nothing bad can happen now."

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06-05-2017 03:00 AM  18 months agoPost 13
Dr.Ben

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Richmond, VA, USA

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Bill,

With a 750 installation, the receiver connects to the gyro via the SBus slot only. If any telemetry accessories are to be used such as GPS, mah counter, etc, then those plug into the SBus2 slot.

If you happen to be using the Fasstest or T-FHSS receiver in something fixed wing and with no gyro, then you can connect SBus2 servos to either an SBus or Sbus2 slot as long as you have the receiver in the appropriate mode. And remember that you can also plug SBus2 servos into an SBus slot.

Better?

Ben Minor

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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06-16-2017 09:52 PM  18 months agoPost 14
Papa Sal

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Reno, Nevada- USA

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Papa Sal here from Reno NV. Question: on a t-rex 450XL where can I put the control module, not the sensor, just the control module; Or how close can I get it to the motor? Thanks for the help everyone

"Everything's better inverted"

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06-17-2017 12:29 AM  18 months agoPost 15
ssmith512

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Indianapolis, IN USA

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Can I use the SBus and SBus2 port simultaneously on the same model? Will the Serial information be streamed from both ports at the same time?
Yes. I do exactly that on my big turbine. I have my FBL unit and ONLY the FBL unit plugged into the Sbus port on the 7008 RX. I have 5ea Sbus2 servos plugged into the Sbus2 port on the 7008 RX (through an Sbus hub). I also have 2ea standard digital "devices" (switchable relay and throttle input for the turbine FADEC) plugged into the standard ports on the 7008 RX. So I use all 3 available output options simultaneously on one bird.

I was experiencing some random and intermittent "weirdness" with the FBL unit plugged into the Sbus2 port on the bench when the Sbus2 servos were also plugged into the Sbus2 port (luckily it was noticed on the bench before the first flight) . Once I isolated the FBL unit to the Sbus port, it all worked perfectly.

Steve

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06-17-2017 12:31 AM  18 months agoPost 16
ssmith512

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Indianapolis, IN USA

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Papa Sal here from Reno NV. Question: on a t-rex 450XL where can I put the control module, not the sensor, just the control module; Or how close can I get it to the motor? Thanks for the help everyone
I've always placed it wherever I could easily see the screen. I had n o regard to anything else on the model.

Steve

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06-17-2017 01:08 AM  18 months agoPost 17
Papa Sal

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Reno, Nevada- USA

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Thanks Steve!

"Everything's better inverted"

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06-17-2017 03:31 AM  18 months agoPost 18
Dr.Ben

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Richmond, VA, USA

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+1

Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA

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09-21-2017 11:47 PM  14 months agoPost 19
NIKOS PAPISTAS

rrApprentice

KOZANI-GREECE

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Hi Dr Ben.
I want to put telemetry into my heli.I use r7008sb in mode B 12ch but the telemetry want to go into 18ch mode D (Radio 18sz).
The problem it’s only the slot into the receiver (to use the sbus slot not the sbus2) or and the mode?
Can I use and the mode D 18ch with telemetry into sbus2 slot and the cgy into sbus slot without issius ?

Hirobo SDX D3 Fbl - ALIGN T-REX 700 F3C V3 FL HEAD-ALIGN T-REX 500 DFC

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