It is currently Mon 25. Nov 2024 2:52:51

All times are UTC + 1 hour





Post new topic Reply to topic  [ 12 posts ]  Go to page 1, 2  Next
  Print view Previous topic | Next topic 
Author Message
PostPosted: Mon 19. Aug 2019 17:31:20 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
Hi
Can I know if the rpm of the telemetry with spm4649 on my DX8GEN2 are correct? I have a big doubt, in practice I set everything, wires etc, and I enabled telemetry in the spirit, but in hovering with an Oxy3 with a 60 amp HW esc , it marked me 1,200 rpm. Ever possible? What should I change again?i have flat throttle curve on my radio 70 70 70 70 70,
and I excluded the governor for now.
I made a comparison with an app on my phone, and he measures (I think correctly) in hovering at 3,200 rpm,see attachment.

So I find myself with less than 2.000 rpm on telemetry. where do I fix?
Thanks


Attachments:
Cattura.JPG
Cattura.JPG [ 46.56 KiB | Viewed 219 times ]


Last edited by Pino74 on Wed 21. Aug 2019 19:31:28, edited 2 times in total.
Top
 Profile  
 
PostPosted: Tue 20. Aug 2019 7:15:30 
Offline
Site Admin

Joined: Mon 29. Apr 2013 16:06:44
Posts: 12442
Hi,

you have to set Gear Ratio and Sensing Divider in the Telemetry window.
Do not set these values in your radio.

Then everything will be fine :)

_________________
Spirit System developer


Top
 Profile  
 
PostPosted: Tue 20. Aug 2019 8:43:52 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
Hi Tomas, it seems that in the tab I have entered all the correct values, but I find the rpm of the telemetry not exact.
my motor is 6 poles / 2 = 3, and my pinion 11.

but the rpm works exactly only if I use the governor of the spirit? or even if it is excluded should they be exact?

Now on the my radio i can see 1.200 rpm, it no exact,using the curves on my radio and with both governors disabled in esc and in the spirit


Attachments:
divider rpm.JPG
divider rpm.JPG [ 51.33 KiB | Viewed 179 times ]
Top
 Profile  
 
PostPosted: Tue 20. Aug 2019 9:01:20 
Offline
Site Admin

Joined: Mon 29. Apr 2013 16:06:44
Posts: 12442
Gear Ratio is not equal to your Pinion but count of the tooths of Main Gear / Pinion.
Usually this value is written somewhere in the manual.

RPM should be same with or without Governor.

_________________
Spirit System developer


Top
 Profile  
 
PostPosted: Tue 20. Aug 2019 9:07:48 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
My Main Gear is 140 teeth/11 my pinion is 12.727272 then=12?

i have set 12,70 value

Thanks Tomas


Top
 Profile  
 
PostPosted: Tue 20. Aug 2019 9:43:34 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
Tomas I'm having problems with the softstart, it seems that it doesn't work well, both with the governor enabled in the esc HW 60 AMP, and with governor disabled.
In case I want to try using the governor of the spirit, the one in the esc must be set as?
Option1 Fixed Wing
Option2 Helicopter External Governor
Option3 Helicopter (Elf Governor)
Option4 Helicopter(Store Governor)
Thanks


Top
 Profile  
 
PostPosted: Wed 21. Aug 2019 19:30:01 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
Hi everyone, I solved by enabling in my Hobbywing esc the Fixed wing mode, and then after the Governor in the Spirit. Now it goes well.

The Governor of the spirit is FANTASTIC and has really good Spool Up management
Thanks


Top
 Profile  
 
PostPosted: Thu 22. Aug 2019 7:28:21 
Offline
Site Admin

Joined: Mon 29. Apr 2013 16:06:44
Posts: 12442
Yes 12,7 is good. Does it mean the RPM is displayed correctly now?

_________________
Spirit System developer


Top
 Profile  
 
PostPosted: Thu 22. Aug 2019 7:38:34 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
Hello now the rpms are exact.also on the radio esc telemetry section I had to set the divider and the motor poles. the number in my case is 0.33: 1.but I didn't do divisions, I changed all the ratios until they were the same in those of the unit :D :D :D :D


Top
 Profile  
 
PostPosted: Thu 22. Aug 2019 7:43:21 
Offline

Joined: Mon 16. Apr 2018 7:19:02
Posts: 192
I just noticed one thing that if I disable the governor from a bank if I am at 70% throttle or any other value, the heli takes so many rpms, takes curves and calibrates of the radio, it seems to me, but it seems twice the value , in the sense that the 30 throttle seems to be 60%, the motor is accelerating so much.

Its Normal? this behavior?


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ]  Go to page 1, 2  Next

All times are UTC + 1 hour


Who is online

Users browsing this forum: Bing [Bot] and 92 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  



Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
skymiles_red v1.0.1 designed by Team -Programming forum-سيارات للبيع .