Hi, attached is the CC log from my 550x. Throttle curves are Normal = 0, 40, 79 ..... 79 IU1 = 84.....84 IU2 = 92.....92 (Governor is active and DSMX sats). After take-off I am in IU2 till I come in to land.
I would expect to see a flat and consistent throttle in signal for the majority of the flight that I am in IU2 ? Is there a problem somewhere with my sats, cables or setup ?
It is not the transmitter as I see flat lines in other configurations.
"Uneven" throttle signal ?
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- 550x - Mar 12.pdf
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Not familiar with the CC log, but... if the Govenor you talk about is the Spirit one, then how else should it keep your headspeed constant, if not by changing the throttle request to the ESC?
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velocity90
- Posts: 252
- Joined: Sun 26. Oct 2014 9:53:53
What you see is a quite normal rpm plot. Look at the pwm plot if that is available. You can see there if everything is ok, if you have enough headroom.
-TT E700 V2-Spirit Pro-mks950-980-Kontronik Kosmik 160 HV -Pyro 700 rewound by PD / Voodoo 600 -PD-MX700-470kv--BLS255hv-VBAR 5.3+- Gaui X3+ Spirit Pro
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velocity90
- Posts: 252
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Perfectly fine, pwm should not touch 100% a lot or even show straight lines there.
-TT E700 V2-Spirit Pro-mks950-980-Kontronik Kosmik 160 HV -Pyro 700 rewound by PD / Voodoo 600 -PD-MX700-470kv--BLS255hv-VBAR 5.3+- Gaui X3+ Spirit Pro
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curmudgeon
- Posts: 231
- Joined: Thu 01. Oct 2015 15:13:29
As I best understand it, the Spirit interprets your transmitter flat throttle IU curves (79-79-79, 84-84-84, and 92-92-92) as the desired set-point RPM. The Spirit then sends its own output throttle signal to the ESC to maintain that desired RPM. So the throttle signal from the Spirit to the ESC will change moment to moment depending on the conditions in an effort to maintain the desired head speed RPM. The Castle log only sees the throttle signal coming from the Spirit, not the throttle signal coming from the transmitter.Dawiev wrote:Hi, attached is the CC log from my 550x. Throttle curves are Normal = 0, 40, 79 ..... 79 IU1 = 84.....84 IU2 = 92.....92
This is exactly how it works. Throttle into the Spirit is a command to achieve a specific RPM. Throttle out from Spirit to ESC does whatever it needs to do to achieve that specific RPM.curmudgeon wrote:As I best understand it, the Spirit interprets your transmitter flat throttle IU curves (79-79-79, 84-84-84, and 92-92-92) as the desired set-point RPM. The Spirit then sends its own output throttle signal to the ESC to maintain that desired RPM. So the throttle signal from the Spirit to the ESC will change moment to moment depending on the conditions in an effort to maintain the desired head speed RPM. The Castle log only sees the throttle signal coming from the Spirit, not the throttle signal coming from the transmitter.
Yes, exactly this is correct.
Spirit System developer
Hi, thank you for all the support !
All is well now.
I had a major "senior moment"
I compared the log from one of my other setups that had a very straight line and couldn't understand why this one doesn't. Needless to say, if you use the CC internal governor, you will see straight .... 
All is well now.
I had a major "senior moment"
I compared the log from one of my other setups that had a very straight line and couldn't understand why this one doesn't. Needless to say, if you use the CC internal governor, you will see straight ....