which parameters for F3A and Jeti Spinn 99  
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All Forums >> Electric Aircraft Universe >> Electric Pattern Aircraft >> which parameters for F3A and Jeti Spinn 99
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which parameters for F3A and Jeti Spinn 99 - 2/4/2008 11:36:29 AM   
schneige


 

Posts: 19
Joined: 11/10/2006
From: baywernbayern, GERMANY
Status: offline 		Hello,

can anybody tell me which parameters break, timing i have to use for my new pattern plane with a Hacker C50 14 XL Competiton and a Jeti Spinn 99. I have no discription for the parameters.


regards Gerhard
       Post #: 1

RE: which parameters for F3A and Jeti Spinn 99 - 2/6/2008 5:32:33 PM   
ofremmi



Posts: 90
Joined: 5/9/2003
From: Horten, NORWAY
Status: online 		Hi there
Here is the setting that I have ran on my Spin99 / 14XL in my Integral. I used FP 5350 and APC 20.5x14

Brake
- Deadtime : 0.2s
- Initial : 30%
- End : 40%
- Brake speed : 0.5s

Timing : 0°
Frequency : 8kHz
Acceleration : 1.0s
LiPo 10s
3.0V per cell
slow-down
Initial points : fixed 1.0 to 2.0ms
Linear Throttle

I prefer the fixed throttle range and use the ATV on my transmitter to get full power and proper enabling, like this :
I take care to have the trottle trim at full up when I connect the battery, then the ESC does not arm and it is safe to accidently bump the trottle stick. When the model i placed on the runway I move the trim down to arm the ESC, then back up to half for a minimum dead-band when moving out of braking when applying power after a vertical dive.

Ola


_____________________________

Ofremmi

(in reply to schneige)
       Post #: 2

RE: which parameters for F3A and Jeti Spinn 99 - 2/8/2008 5:38:20 PM   
schneige


 

Posts: 19
Joined: 11/10/2006
From: baywernbayern, GERMANY
Status: offline 		Thank you Ola for the parameters they are very helpful for beginning and the first flights with my new Leviosa.
Is there any discription of the Break parameters.


Gerhard

(in reply to ofremmi)
       Post #: 3

RE: which parameters for F3A and Jeti Spinn 99 - 2/8/2008 7:54:55 PM   
Hans Meij


 

Posts: 459
Joined: 4/5/2002
From: Schoonhoven, NETHERLANDS
Status: offline 		I'm on the same route to start flying electrics this year (also spin and hacker )
Default a max rpm for the prop and the motor is active (5590 prop)
Schould this remain, it seems a bit low?

(in reply to schneige)
       Post #: 4

RE: which parameters for F3A and Jeti Spinn 99 - 2/8/2008 8:00:25 PM   
darkvader



Posts: 139
Joined: 9/24/2003
From: Azeitao, PORTUGAL
Status: offline 		Hi OLA,

With the LINEAR option, dont you fill the StartUp of the motor a little bit HARD (HIGH RPM on the Start UP)

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Best Regards
DV

(in reply to Hans Meij)
       Post #: 5

RE: which parameters for F3A and Jeti Spinn 99 - 2/8/2008 10:15:27 PM   
OhD


 

Posts: 427
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline
quote:

ORIGINAL: ofremmi

Hi there
Here is the setting that I have ran on my Spin99 / 14XL in my Integral. I used FP 5350 and APC 20.5x14

Brake
- Deadtime : 0.2s
- Initial : 30%
- End : 40%
- Brake speed : 0.5s

Timing : 0°
Frequency : 8kHz
Acceleration : 1.0s
LiPo 10s
3.0V per cell
slow-down
Initial points : fixed 1.0 to 2.0ms
Linear Throttle

I prefer the fixed throttle range and use the ATV on my transmitter to get full power and proper enabling, like this :
I take care to have the trottle trim at full up when I connect the battery, then the ESC does not arm and it is safe to accidently bump the trottle stick. When the model i placed on the runway I move the trim down to arm the ESC, then back up to half for a minimum dead-band when moving out of braking when applying power after a vertical dive.

Ola




Ola,

What isn't clear is at what point the brake activates. When you bring the trim up to half does the motor idle or is it still off (below 1.0 msec)? Does the ESC need to see the pulse width at initialization or anything below 1.0 or can the trim be at idle and still activate the brake with the throttle stick? Does the brake come on at landing?

Jim O

(in reply to ofremmi)
       Post #: 6

RE: which parameters for F3A and Jeti Spinn 99 - 2/9/2008 7:19:06 PM   
ofremmi



Posts: 90
Joined: 5/9/2003
From: Horten, NORWAY
Status: online 		DV : No I don't think so, should I ?

Jim : I'm not running an idle, the brake is on when the stick is at idle and the trim is at center. If I keep the trim at full down I feel that there is too much stick movement before the engine comes out of brak-mode and starts to pull. I hooked up the JetBox and measured these pulsewidths :
Stick at idle, trim at center : 0.996ms
Stick at idle, trim at full low : 0.893ms

I'm not sure exactly where the arming of the ESC happens with respect to trim position. My point is that I can connect the battery without arming it, and then arm it safely from the transmitter.

Ola

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Ofremmi

(in reply to OhD)
       Post #: 7

RE: which parameters for F3A and Jeti Spinn 99 - 2/9/2008 11:00:56 PM   
OhD


 

Posts: 427
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline
quote:

ORIGINAL: ofremmi

DV : No I don't think so, should I ?

Jim : I'm not running an idle, the brake is on when the stick is at idle and the trim is at center. If I keep the trim at full down I feel that there is too much stick movement before the engine comes out of brak-mode and starts to pull. I hooked up the JetBox and measured these pulsewidths :
Stick at idle, trim at center : 0.996ms
Stick at idle, trim at full low : 0.893ms

I'm not sure exactly where the arming of the ESC happens with respect to trim position. My point is that I can connect the battery without arming it, and then arm it safely from the transmitter.

Ola


Sounds like a good setup. I think I will give it a try. Do you get any chattering when you bring the throttle stick up to taxi? I was worried about the gear box getting pounded,

Jim

(in reply to ofremmi)
       Post #: 8

RE: which parameters for F3A and Jeti Spinn 99 - 2/11/2008 8:56:48 AM   
Magne


 

Posts: 333
Joined: 3/7/2004
From: Moss, NORWAY
Status: offline 		Hi Ola.
Do you still use an external (outside the fuselage) arming cable with this set-up, or do you hook up everything inside the model before you attach the canopy?
Also, is this the Hacker/Jeti Master Spin 99, or the Jeti Spin 99 regulator?
(Or does it actually matter, what is the real difference, apart from price???)

Regards,
Magne

(in reply to OhD)
       Post #: 9

RE: which parameters for F3A and Jeti Spinn 99 - 2/12/2008 8:16:16 PM   
ofremmi



Posts: 90
Joined: 5/9/2003
From: Horten, NORWAY
Status: online 		Magne
No, initially my Integral was overweight, so I saved up on everything and skipped the external arming. I hook it all up as described earlier, and armes it from the transmitter when ready for take-off.
So far I have been using the Jeti-version, a second Hacker motor with a Hacker Spin99 is ordered, I can not tell if there is any difference. There was differences between the Master 90 and the Jeti version, I do not think it is so with the Spin, but I will soon find out :-)


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Ofremmi

(in reply to Magne)
       Post #: 10

RE: which parameters for F3A and Jeti Spinn 99 - 2/24/2008 8:45:28 PM   
OhD


 

Posts: 427
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline
quote:

ORIGINAL: OhD


quote:

ORIGINAL: ofremmi

DV : No I don't think so, should I ?

Jim : I'm not running an idle, the brake is on when the stick is at idle and the trim is at center. If I keep the trim at full down I feel that there is too much stick movement before the engine comes out of brak-mode and starts to pull. I hooked up the JetBox and measured these pulsewidths :
Stick at idle, trim at center : 0.996ms
Stick at idle, trim at full low : 0.893ms

I'm not sure exactly where the arming of the ESC happens with respect to trim position. My point is that I can connect the battery without arming it, and then arm it safely from the transmitter.

Ola


Sounds like a good setup. I think I will give it a try. Do you get any chattering when you bring the throttle stick up to taxi? I was worried about the gear box getting pounded,

Jim



Well I decided to give the Spin 99 another try using your approach. I mechanized it a little differently. I used a three position switch on my 14MZ to give me idle, brake and cut off. The settings, with the throttle stick at low, are as follows:

Idle, switch up: 1.042 ms, set with ATV/AFR
Brake, switch at center: .989ms, set with Idle Down
Cut off, switch down: 953ms, set with throttle cut

The ESC will not arm until the switch is pulled back to throttle cut, so it must arm between .989 and .953. The system is still safe because in Throttle Cut the throttle stick is disabled. The only bad news is the motor won't start when the switch is pushed up to the idle position like it does on my Hacker/Jeti 90. It is not a serious problem as it will start fairly smoothly with the stick and then it will idle when the stick is pulled back. This allows me to taxi out to the runway and back during practice sessions. It also allows me to use the brake only when I decide I want it. I haven't flown this setup yet so I don't know how good it will work but it works fine on the ground.

Jim O

(in reply to OhD)
       Post #: 11

RE: which parameters for F3A and Jeti Spinn 99 - 2/24/2008 9:03:31 PM   
darkvader



Posts: 139
Joined: 9/24/2003
From: Azeitao, PORTUGAL
Status: offline 		Hi Jim O

What Radio you have ?
With Futaba, at the minimum range, it doesn't work with fixed pulse, only with Auto?

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Best Regards
DV

(in reply to OhD)
       Post #: 12

RE: which parameters for F3A and Jeti Spinn 99 - 2/24/2008 10:08:47 PM   
OhD


 

Posts: 427
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline
quote:

ORIGINAL: darkvader

Hi Jim O

What Radio you have ?
With Futaba, at the minimum range, it doesn't work with fixed pulse, only with Auto?


I now have a Futaba 14MZ. I never could get smooth starting with my Futaba 9Z but this looks like it will work fine.

Jim

(in reply to darkvader)
       Post #: 13

RE: which parameters for F3A and Jeti Spinn 99 - 2/25/2008 1:08:23 AM   
OhD


 

Posts: 427
Joined: 10/23/2002
From: west hills, CA, USA
Status: offline
quote:

ORIGINAL: darkvader

Hi Jim O

What Radio you have ?
With Futaba, at the minimum range, it doesn't work with fixed pulse, only with Auto?


Is your problem that the ESC won't arm? If it is, try to set the initial point at 1.1ms so you have a larger difference between it and the low throttle/throttle trim pulse width. My 953ms is marginal. Ola's .893 is better. So if you can't get your transmitter down to .893ms, try raising the initial on point.

Jim O

(in reply to darkvader)
       Post #: 14

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