jazz 80-6-18 questions

[Jason Chow]

I just picked up a jazz 80-6-18 esc for the 500 and am not feeling as much power as i did with the stock align esc. I calibrated the esc for lipo mode (4) and heli mode (9), set my throttle curve at 95% on 13t pinion and do not feel that much power. I know the jazz is designed to "learn" the best setting for your motor but given the same setup, same batteries, just switching to the esc, I noticed a decrease, is there anything that I am missing?

ps> i have 2 people I know with the same identical setup and i have seen first hand with the same batteries I used a significant increase in power.

[OICU812]

So yours is not as powerfull as theirs with same ESC is this what you are stating? Are you certain the ESC has learned the full up and down of your thorttle Channel. I know on my DX7 I have to push up on the stick for the top part or the value seen at rest is only around 95% and can be seen on my screen.

[Jason Chow]

shawn,

yes, two buddies of mine have the same identical esc and their helicopter is producing much more power with my batteries in their helicopter. using the same esc, setup the same way, lipo mode and helicopter mode, I wasn't able to achieve the same, in fact, its a signficant lower "power" or "HS".

the setup procedure I used, I made sure that i setup a linear 0-50-100 throttle curve. i set the jumper on startup wtih throttle stick down, waited 3 beeps, removed jumper, listened for the 4th beep, went to full throttle then powered off. repeated for the helicopter setting 9, went to full throttle, then removed battery pack. set the appropriate throttle curve, and flew the helicopter.

is there a way you can listen like on the align esc, for what settings are on the esc?

[OICU812]

I really doubt the mode 9 has anything to do with it but... I never have done the mode 9. I only do the Mode 1 to default to stock, them mode 4 and that's it. And only thing beyond that is to do mode 7 if it is turning wrong way and you do not wish to do a wire swap.

Otherwise if you have done this way and still same results I am not sure what to say, that is odd and unheard of with the Jazz.

Curious you running a 14 tooth now on stock motor?

[fogger]

by "appropriate throttle curve" you mean you are setting up a straight line at say 85 or 90% right? You don't want to use a "v" curve with the jazz.

Are you making sure you leave the pitch zero as it spools up?

Other than a bad solder joint, it is possible you just got a bad unit. I'd check all solder connections for a cold solder joint and re-do your setup as Shawn suggests starting with a mode 1 (reset) and then a mode 4. I personally set mode 9 to get the lipo cutoff voltage "just in case".

-Fog

[mbigby]

Jason,

The jazz instructions are not exactly clear...

Did you skip the spool up on first power up after programming governor mode? My read on the Jazz instructions is that the first time you connect the battery after you program heli-governor mode, you need to run the heli at full throttle and zero pitch for a few seconds. (I think I read 6 somewhere else.) The jazz uses this to calibrate to the motor. If you don't do this you can get screwy results.

Just to reiterate: my understanding of how to program a jazz is:

1. set mode 1 (reset)
2. power off the controller
3. set mode 9 (lipo)
4. power off the controller
5. set mode 4 (governor)
6. power off the controller
7. rev the throttle to 100% for 6-10 seconds at zero pitch.
8. power off the controller
9. fly...

Also, it seems the jazz leaves some power in reserve on governor mode. By my estimation, it only runs at 86% of the max headspeed. I assume this is because it wants to be able to maintain "100%" as the battery sags.

Jazz-experts: if I'm wrong, please correct me, as the kontronik directions leave much to be desired...

[fireup]

Yes, as Shawn said, if you're not running 14T, than you need to and you can lower your "flat" throttle curve to 85 to 90%. I think if you need to run 95%, the Gov won't have enough head room to do it's job.

[Astennu]

I have the same "Problem" with the max throttle its around 90% now in gov mode.

Are you guy's also resetting the Jazz if you are changing to a other pinion ?

And the best way to set up is to get a 0-25-50-75-90 curve ? and not max out at 100% ?

i'm still new to this and especially the Jazz. i Also bought the Progcard to easily change and see the setting.

I was running 13T at start but only got 6 min of normal flight on a 2500 mah align pack. A friend of mine with Align esc got 7. with 100-90-100 curve.

So i went down to 12T but only gained like 20-30 Sec

[psindrup]

Jason

Any news? Have you managed to fix your problem?

T.i.a.

Peter

[Jason Chow]

i have not tried yet but will reprogram it later on today, i left the instructions at my house but luckily it was posted in this thread, i will try it later on today and see if it helped. I dont have the 14t pinion though.

sidetrack (i want a scorpion 1400kv now.....thanks alot kevin, lol)

[Pinecone]

I have the same "Problem" with the max throttle its around 90% now in gov mode.

Are you guy's also resetting the Jazz if you are changing to a other pinion ?

And the best way to set up is to get a 0-25-50-75-90 curve ? and not max out at 100% ?

i'm still new to this and especially the Jazz. i Also bought the Progcard to easily change and see the setting.

I was running 13T at start but only got 6 min of normal flight on a 2500 mah align pack. A friend of mine with Align esc got 7. with 100-90-100 curve.

So i went down to 12T but only gained like 20-30 Sec

No, with a Jazz in Mode 4 (gov) you want a Normal Throttle curve like: 0 - 75 - 75 - 75 - 75

You want an idle up curve like 80 - 80 - 80 - 80 - 80.

[chuckk]

if you figure something out jason let me know. my 500 with a jazz 80-6-18 also feels like its reallly lacking in the power department even with a tach'ed headspeed of 2730. norm curve is 0-37-75-75-75, idle 1 80-80-80-80-80, idle 2 87-87-87-87-87. just doesnt seem to have the punch that a lot of other 500's have. auw - 1830g.

[Jason Chow]

there are some issues I'm discovering that is not just me, thanks for posting that you are having problems with it also.

[chichiuno]

I like using the progcard with my jazz controlers. It gives you the full view.

[Jason Chow]

but does it help any and have you tried this particular esc on the 500L motor?

thanks

[rotodingo]

It won't help you much but i have 2 55-6-18 Jazzs working on a Kora 15-12 (Lepton) and Kora 15-14 (JR super VE 4S- Vibe 500E) motors. Well, it works very well. I programed them with the Kontronik progcard. Cheap, simple and it's avoiding you errors.

Nicolas