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04-17-2016, 09:33 PM | #1 (permalink) |
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Join Date: Nov 2013
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CC Telemetry Link for Futaba Sbus2
Anyone using the new CC telemetry link? I'm having trouble with the reading of the rpm... My motor is an 10 pole... And the E7SE gear ratio is 10.08... Those figures are entered in my 18SZ but its seemingly giving me motor rpm and not actual HS rpm... Anything I missed? Suggestions?
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04-20-2016, 02:02 PM | #2 (permalink) |
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Join Date: Aug 2012
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I was messing with mine today and it looks like the 18sz is multiplying the motor RPM by the gear ratio instead of dividing it How did that go unnoticed by the development team? (Futaba's problem)
Last edited by Danny Dugger; 04-21-2016 at 07:53 AM.. |
04-21-2016, 09:39 AM | #4 (permalink) |
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Join Date: Sep 2015
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Hi, I have a futaba 14sg and Talon 35 ESC, I have to choose between gear or poles, it is not possible to use both.
If I use poles, 6 in my case, then I get motor RPM. If I use gear, I have to put gear x poles / 2, in my case 11 x 6 / 2 so I enter 33. With this option it seems to work OK and I get HS RPM. But I detected a problem, the max internal value before conversion I think is 99999, and HS RPM is 99999/33 so more or less 3000 s the max RPM I have. With my TRex 450L I have governor mode in idle2 at 3200, but telemetry shows 3000. I sent an email to castlecreation support yesterday, not response yet. |
04-21-2016, 12:06 PM | #5 (permalink) |
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Join Date: Sep 2015
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Hi, I have the telemtry link sbus2 installed with Talon 35 ESC using Futaba 14SG in the heli Align TREX 450L.
I was doing some test with RPM telemetry and these are my comments: - In my transmitter I have to choose between poles and gear ratio, I can not use both parameters. - If I use poles (in my case 6 poles) then I get motor RPM - If I use gear ratio, then I use this formula -> "gear ratio" x "poles number" / 2. In my heli this is: 11 x 6 / 2 = 33. And with this option I get the head speed RPM- It seems that this works but not sure. But the problem I have found is that it should be a max value of 99999 in the internal value that is send through the telemetry system for RPM, because I can not read more than about 3000 RPM (99999 / 33 more or less = 3000). I have configured governor mode with three values, normal 2800, idle1 3000, and idle2 3200. In normal and idle1 the telemetry shows more or less the correct value, but when I move to idle2, it shows the same as idle1, although it is clear than the RPM are increased. Yesterday i sent an email to castle creation support about this, but I am waiting for their response yet. Regards. |
04-22-2016, 12:27 AM | #6 (permalink) |
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Join Date: Sep 2015
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I'm sorry. I have duplicated the message. I thought the first was missed.
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04-22-2016, 07:30 PM | #7 (permalink) |
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Thread Starter
Join Date: Nov 2013
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The ? pertains more the the 18SZ radio I suppose... Not sure if anyone is having this issue with the 14SG.
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06-30-2016, 06:47 PM | #8 (permalink) |
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Thread Starter
Join Date: Nov 2013
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This ever get solved?
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Team Synergy / Rail Blades |
07-07-2016, 08:11 PM | #9 (permalink) |
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Join Date: Jul 2009
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I was in contact with Futaba on this issue for the 18SZ. They are working on a fix. None yet.
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07-16-2016, 06:40 AM | #10 (permalink) |
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Join Date: Aug 2012
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Hi guys, sorry I forgot about this thread. I've been working with Nick Maxwell and Clint Akins for a while on this. Just a heads up - Castle released new Castle Link software and ESC firmware yesterday with their fix and the 18sz firmware 1.7 which implements the math error fix should be available any day. Head speed on my tx agreed with my Castle logs within 5 RPM. :cool:
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