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skijones007
06-26-2008, 01:12 PM
Kevin,

Thanks for the help, so I do not need a separate battery for the receiver then. I appreciate the assistance. By the way I'm going to use this in my X-cell Razor 600.

Don
fireup
06-26-2008, 01:19 PM
Kevin,

Thanks for the help, so I do not need a separate battery for the receiver then. I appreciate the assistance. By the way I'm going to use this in my X-cell Razor 600.

Don

Ok, I want to make it clear, You need two sets of batteries, one 2S pack to power the Rx, servos, gyros. And a separate pack for the Motor and ESC.
TooLy
06-26-2008, 01:32 PM
If your ESC don't have internal bec you can connect it to throttle channal as usual, if you have bec, just cut the red wire in the rx connector.
By the way, you can power the AR7100/R from ESC with bec, and then you don't need another battery for rx.
trickybit
06-26-2008, 01:36 PM
Ok, I want to make it clear, You need two sets of batteries, one 2S pack to power the Rx, servos, gyros. And a separate pack for the Motor and ESC.

Yeah, that's why I thought God invented the BEC. Fireup, is there something about this configuration that would argue against a "battery-elimination circuit"?

Thanks,
Jim
fireup
06-26-2008, 02:05 PM
Here's two ways to use the AR7100 on an electric.

http://www.helifreak.com/attachment.php?attachmentid=52889&d=1214504123
futurase
06-26-2008, 02:11 PM
What we need now is for some company to step up and make a BEC with an output to 8.0v not 6.0v or 4.8v. We just need a higher voltage BEC is all. nothing else will change then.

Norman Ross Jr.
skijones007
06-26-2008, 02:18 PM
Thanks Fireup that makes it perfectly clear now, I just couldn't picture it in my head. I'm going from a 450 to the 600, either 10S or 12S. I wanted to make sure, I didn't want to purchase something I didn't need.
I plan on using a castle HV85.

Thanks again
warpspeed
06-26-2008, 08:49 PM
What we need now is for some company to step up and make a BEC with an output to 8.0v not 6.0v or 4.8v. We just need a higher voltage BEC is all. nothing else will change then.

Norman Ross Jr.

Castle's bec is adjustable to 9 volts.....

http://www.castlecreations.com/products/cc_bec.html
charles
06-27-2008, 10:27 AM
Is it possible to use the 7100r with 6.0 volt servos and a 2s lipo pack. What switch, wiring look like. They state in the instructions that normal switches do not work.

Charles
Montana_Reefer
06-27-2008, 10:35 AM
Is it possible to use the 7100r with 6.0 volt servos and a 2s lipo pack. What switch, wiring look like. They state in the instructions that normal switches do not work.

Charles

I had one out of the box the other day and it comes w/ it's own switch!
Finless
06-27-2008, 10:37 AM
No.... the unregulated output is straight 8V so you MUST use 8V servos if you want a straight 2s lipo. You can however run a regulated 6V into the RX.

If you don't want to use THEIR switch then leave it off and that leave the RX powered up and you can use a switch on the input power or regulator but to some extent your defeating the purpose of this RX. Might as just well use a 921 or AR9000 and a regulator. Did you watch my video?

Bob
charles
06-27-2008, 11:23 AM
Bob,

I did watch the video. I just wanted to make sure that I understood concept. It does not make sense that they would set this up so the only way to use their setup with lipos is to use 8v servos. I guess you could put a 6.0v regulator in between the battery and the rx, which would then give you 6 volts to cyclic servos and 5.2 to the internally regulated ports.

Charles
Finless
06-27-2008, 11:24 AM
Bob,

I did watch the video. I just wanted to make sure that I understood concept. It does not make sense that they would set this up so the only way to use their setup with lipos is to use 8v servos. I guess you could put a 6.0v regulator in between the battery and the rx, which would then give you 6 volts to cyclic servos and 5.2 to the internally regulated ports.

Charles

Correct you can do that......

Bob
JR NUT
06-27-2008, 11:01 PM
does it matter if the receiver antenna hits the canopy ,the satelite is fine just the receiver antenna?:confused:
Zaphod_2112
06-30-2008, 03:28 AM
No.... the unregulated output is straight 8V so you MUST use 8V servos if you want a straight 2s lipo. You can however run a regulated 6V into the RX.

If you don't want to use THEIR switch then leave it off and that leave the RX powered up and you can use a switch on the input power or regulator but to some extent your defeating the purpose of this RX. Might as just well use a 921 or AR9000 and a regulator. Did you watch my video?

Bob

Bob,

I just bought a 7100R and was planning to use a 2s lipo to run my 8717 cyclic servos. After talking to JR's tech support I was told that they are aware that people are running 2s lipos directly to 8717s but that they aren't rated for it and it voids the warranty. I'm not worried about the warranty but I am concerned about the increased risk of toasting a servo and wrecking my heli. The extra speed is not going to make a big difference for me so I've been looking at using a 6 volt A123 pack with out a regulator. It sounds like you're saying that I'm risking a brown out that way and I need to buy a regulator and a 2s lipo to run 6 volts. Is this correct? If so, I've lost half of the benefit of this reciever by buying a regulator. Am I making too big a deal out of this issue? Any thoughts?

Thanks
noste500
06-30-2008, 05:38 AM
If I use the lead that comes with the unit, instead of the switch, ( the one that enables you to charge )
then I cannot balance my battery unless I connect the balance lead as well, Is this correct?

Also how do you rig up a battery level indicator for a lipo??

I am using a 2 cell lipo.
Finless
06-30-2008, 10:59 AM
Well I can't argue with JR and running those servos at 8V. I am just sharing what many people have been doing for over a year now. I can tell you that many pro pilots are doing this even before the 7100 came out. You have to decide if you want to do that. I have myself have not heard of the servos burning out on anyone running 8V to them.



If I use the lead that comes with the unit, instead of the switch, ( the one that enables you to charge )
then I cannot balance my battery unless I connect the balance lead as well, Is this correct?

Of course! to balance you always have to use the balance plug! I do not use the feature to charge through the RX because they recommend you unplug the pack when not flying as the "soft switch" system does cause a tiny bit of leakage and can drain the pack over time. So since you have to unplug it anyway after your done flying, might as well charge it from the battery connector.

Bob
Pinecone
07-04-2008, 10:19 AM
For those that don't want to run 8 volts:

http://www.spektrumrc.com/Products/Default.aspx?ProdID=SPMVR6010

Or any other high amperage BEC setup.
TooLy
07-04-2008, 06:21 PM
Got my AR7100R today, really nice unit.
The starnge thing is the sensor, I mounted it and checked it while I turend the motor, the led goes on and stay on all the time, only if I'm turning it to the other direction she goes off.
I understand that this is not ok right ?

Thanks,
Roei
creightoncarr
07-04-2008, 07:06 PM
Rather than reposting everything here, I think anyone using or thinking about using the AR7100R's should read these three threads on the otheRR site:

http://www.runryder.com/helicopter/t443309p1/
http://www.runryder.com/helicopter/t440566p1/
http://www.runryder.com/helicopter/t439198p1/

I'm not trying to scare anyone into not using these, but I think anyone who is using them should be cautious. We've all got a lot of money invested in our helicopters. I can think of a lot of ways I would rather crash than my receiver taking a dump on me.
noste500
07-05-2008, 06:35 PM
I am running the ar7100r in the following set-up
8717@ 8v
gyro, tail and throttle at drop down volts.

If I want to power a carbsmart, can I use the gear output channel, ( not the 8v output ) to power it?
Or do I have to y-lead into one of the other outputs?

I will be running the rev limiter soon.
Thanks
TooLy
07-06-2008, 02:35 AM
Yes you can, and don't forget you have another free throttle channel.
5.0Greg
07-12-2008, 08:36 PM
Hey Guys,

I installed a 7100R with no problems. Once I installed the carbsmart I started to get a tail drift to the left. It's only happening when I'm using the sensor. In normal mode, no drift. When I go into idle up which I have set at 100% so I'm letting the sensor do it's job is when it drifts. I tried first plugging the carbsmart into the gear channel then tried the only other available channel (at 5.2V) being the bind/data port, still a drift.

I'm thinking there's something going on in the receiver that I need to block with maybe a filter but I'm kind of lost..Any help or ideas would be greatly appreciated.

Thanks
Finless
07-13-2008, 12:32 PM
Per my video did you remove the signal wire from the carb smart cable that goes to the RX? Having a wire like that can cause noise to the RX as it is not terminated on the other end. So the cable going from the carb smart to the RX REMOVE the orange wire as it is not used for anytning.

Bob
noste500
07-14-2008, 02:35 PM
Thought I would post this info , as I seem to remember somebody asking whether the sensor has to be moved back from the engine plate on the OS. I am running the pumped os91 and I found that I had to do the same as Bob and move it slightly away from the backplate, ( approx 1mm ) I think others had reported doing the same on the YS. It would not work for me right up against the backplate.

Anyway, just wanted to share this info.

Cheers