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-   -   Official Tekin RX8 GEN2 ESC Thread (https://www.rctech.net/forum/radio-electronics/726576-official-tekin-rx8-gen2-esc-thread.html)

ACE_79 07-24-2013 03:26 AM

Look at page 51, had the same problem!

Mine stopped logging and unselected all chanels.
Factory reset helped...

Waflet 07-24-2013 07:09 AM


Originally Posted by RC_Tactical (Post 12376221)
Thanks for the quick response, but I should have been more clear in my question... I can see the motor temp graph, but the data isn't changing. How does the ESC get the motor temp data to log? Do I have to run a Tekin motor for it to work??? Everything else works fine - throttle, voltage, esc temp, rpm.


Originally Posted by Mullet1 (Post 12376354)
my motor temp does not work either....all motors are Tekin


Originally Posted by RC_Tactical (Post 12376845)
I've cleared all data from the ESC if that's what you mean. I can open the new data file from a fresh run, and there's no motor temp data. Is it really necessary to save it to a PC and then reload to view? Doesn't make sense. I can view the new run in the Tekin hotwire software. Hmmm....

Hideeho
I have not seen a direct answer to the question, but I'm gathering from problems I am seeing on the forum, you have to run a newer t8, t8i, pro4, pro4hd, or redline gen 2. I haven't heard of anyone using an sc4x yet, so I don't know about that one. I know the lrp x20 & viper motors (at least 540 motors) have a temp probe on the sensor board, so should (at least in theory) work to show the motor temp in data logging, but, again I haven't heard of anyone using these motors & succssfully getting motor temps in data logging. I have not heard of anyone using other brands other 1/8 motors so I have no clue if other brands do motor temp data logging or not. Until someone from tekin makes a statement other wise, I would assume ONLY NEWER tekin motors (t8 & newer designs) will give info to the ESC for motor temp data logging.

yzracer758 07-24-2013 07:11 AM


Originally Posted by Brandonmorris44 (Post 12376813)
My rx8 gen 2 white case busted to pieces . Big race this Saturday . Do I have any options ? Where could I order one and overnight it ?

You've got mail.

TY@TEAMTEKIN 07-24-2013 08:02 AM


Originally Posted by RC_Tactical (Post 12376221)
Thanks for the quick response, but I should have been more clear in my question... I can see the motor temp graph, but the data isn't changing. How does the ESC get the motor temp data to log? Do I have to run a Tekin motor for it to work??? Everything else works fine - throttle, voltage, esc temp, rpm.

If the motor you're using has a temp thermistor and a standard wired sensor plug, the datalogger should read the temperature. All of our sensored motors back to the GEN1 Redline work on our datalogger.

bigbadbasher 07-24-2013 08:38 AM

Question for the Tekin guys, how long does it log before it stops? Basically how much memory does it have in terms of minutes?


Originally Posted by RC_Tactical (Post 12376845)
I've cleared all data from the ESC if that's what you mean. I can open the new data file from a fresh run, and there's no motor temp data. Is it really necessary to save it to a PC and then reload to view? Doesn't make sense. I can view the new run in the Tekin hotwire software. Hmmm....

I do that myself because thats the order i do it in when im logging, that way i can go back and check and know that before i slap it back on the track, it's cleared. Sort of a fail safe from myself and it also tells me it worked right..

@Biggie, are you clearing data or leaving your power on? I did that last week, i forgot and left the buggy on when i was setting up, i wanted to power on the buggy to center up my servo and i wanted my buggy dressed for setup, well i forgot, it was logging that whole time..

Also make sure your "downloading" the data and clearing the data..

Randy_Pike 07-24-2013 09:02 AM

The amount of data collected varies upon sample rate and data stream chosen. Motor RPM for example consumes a lot of memory. I don't find it very important in 1/8 so I turn it off and focus on temps, battery,etc.

Each time you set the car down on the track it's best to clear the memory by holding down the "inc" button for a few seconds and let it confirmation chime. This will maximize your data log run.

RC_Tactical 07-24-2013 09:21 AM

Good discussion folks! I'm running a Revtech 4xs motor, so I guess there's a possibility that it does not have the temp thermistor. I'm setting up another Rx8 Gen 2 on my 1/8 buggy with a T8, so all should be fine with that one. Glad we found some clarification.

BiggieFries 07-24-2013 10:43 AM


Originally Posted by bigbadbasher (Post 12378336)
@Biggie, are you clearing data or leaving your power on? I did that last week, i forgot and left the buggy on when i was setting up, i wanted to power on the buggy to center up my servo and i wanted my buggy dressed for setup, well i forgot, it was logging that whole time..
Also make sure your "downloading" the data and clearing the data..

I've used it before. I know to DL it first. It does what Ace said. Downloads for about half a second and then stops like there is no data. when you look at the log all the parameters are unselected, once you select all of the parameters there is nothing on the graph, not even a flatline.

I will try holding both buttons down and reloading all of my settings like Ace suggested does anyone from Tekin know anything about this?

Waflet 07-24-2013 10:45 AM

Hideeho
It's good to get that confirmed! Thanks for for all your help ty, randy, yz & the rest!

I'll be interested to see what other motors work for temp data logging. If anyone out there is using another brand & getting temp data, post up & let us know what works & doesn't. I would do some testing, but afaik, everyone at my track either uses tekin or sensorless motors for 1/8. I wonder how many companies (reedy, trinity, etc.) will change their next gen motors to have temp sensors.

Randy_Pike 07-24-2013 10:47 AM


Originally Posted by BiggieFries (Post 12378673)
I've used it before. I know to DL it first. It does what Ace said. Downloads for about half a second and then stops like there is no data. when you look at the log all the parameters are unselected, once you select all of the parameters there is nothing on the graph, not even a flatline.

I will try holding both buttons down and reloading all of my settings like Ace suggested does anyone from Tekin know anything about this?

Perform a factory reset, install your settings, radio calibrate, re test. Should clear it up.

Cain 07-24-2013 12:02 PM


Originally Posted by 2low4u (Post 12106741)
Street price on Tekin website $199.

Who has the best overall price right now? Looking to purchase 2 to 3 of these, can get the price down to about $188 shipped each, anyone got a better price somewhere else?


Originally Posted by TY@TEAMTEKIN (Post 12263513)
Yep, no sensored only. 4-poles don't really like it and we don't want boost or turbo on them.

Strange, so you can't do any of that ... I know with the 4 Pole 4000Kv motor Pro4 I had, using timing at a higher RPM start range (like 5 degrees) and a smaller pinion kept my temps low but gave me the top end to compete with 4600Kv equipped vehicles in my SC10 4x4 when I couldn't pull taller gearing without getting too hot. Is this not common to do or?


Originally Posted by Pulse_ (Post 12267990)
You can adjust directly:

- drag brake
- brake strength
- current limiter
- neutral width
- throttle profile
- motor type
- voltage cut off

for everything else you'll need the hotwire

Can you set custom cut-off voltages? I don't like relying on the auto-cell detect feature that some ESCs have as I have seen it mis-detect the total pack voltage due to a weak cell.


Originally Posted by timamybrown (Post 12290452)
I have to give props to tekin. I never really been a tekin fan but the Gen2 is great. My motor and esc run cooler and even at 60 CL my motor has way more punch it like a put a difference motor in the tekno. Good job tekin.

Seen this guy drive, VERY FAST and very helpful! Reason I am looking at the ESC ... :)


Originally Posted by dogwood174 (Post 12332264)
+1

I heard the same from One of the Tekin guys so I stopped using fans with no issue. I would consider installing one on a weekend that was 100 degrees and /or running a sand track with a heavy throttle finger. If you spin from corner to corner, the ESC will get hotter.:nod:

Curious, I know that fan's shouldn't be relied upon, Is it possible to just make an RX8 that has the fan area taken up by a Taller heatsink? How much of a temp drop would a taller heatsink only option offer?


Originally Posted by MattDub (Post 12368192)
Anyone wondering how strong the new BEC is, it is quite impressive. We are testing mechanical breaks in our ET48 electric truggy and the ESC has enough BEC current to run two Hitec 7955s (one for steering, one for break) for ten minutes without a capacitor (glitch buster) on the rx. Servos were going strong and no issues for the entire race.

Thats really cool. I am personally looking at this ESC to run in a dual steering servo setup on a 1/5 scale Savage based Flux. (so basically a big monster truck). Wonder if it can handle the load?

As a side related question to that, for the Tekin RX8 BEC, if for some reason it experiences a failure, does it has some ability to NOT send all the voltage to whatever is attached to it?

Lastly, and sorry for the ignorance here but does the RX8 Gen 2 have any water resistance? Seems that is becoming more common, water resistance and water proof setups, curious if the RX8 Gen 2 has that ability as out here when the watering gets heavy, it can be handy, especially in an SCT without an inner shell.

Thank you beforehand everyone who has info!

Randy_Pike 07-24-2013 12:37 PM

Yes you can set custom voltages via the Hotwire device.

No these are not waterproof. In those conditions we recommend boxes,etc.

The BEC is awesome but 2 HV servos in a 1/5 in all honesty should be on a stand alone BEC or receiver pack.

While the fan isn't required in most 1/8 buggy cases lower voltage setups like 2s 4wd SC do often require the fan for longer mains,etc.

A taller heatsink could help but no where near as well as the fan.

Brandonmorris44 07-24-2013 12:54 PM


Originally Posted by yzracer758 (Post 12378084)
You've got mail.



No I don't haha

yzracer758 07-24-2013 12:58 PM


Originally Posted by Brandonmorris44 (Post 12379084)
No I don't haha


E-Mail that is. lol
You will have real mail by Saturday. :)

Cain 07-24-2013 01:36 PM

Thanks for the info Randy!

Any info on this question?

"For the Tekin RX8 BEC, if for some reason it experiences a failure, does it has some ability to NOT send all the voltage to whatever is attached to it?"


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