Overcurrent?

[Big Fil]

Hey guys I need help with a diagnoses. This weekend I was flying on a brand new battery (it was screaming:)) and about 3 minutes in i hear the peanut gallery asking to hear for blade barks. So I proceed to come dive down at myself inverted and hit the collective hard for a punch out and I hear everything shutdown. Hit throttle hold even though it sounded like there was still a bit of motor turning and auto'd in. Checked everything out on the ground and nothing seemed hot or out of order and proceeded to spool up again without issue for a short easy test flight. I've had thermal shutdowns in the past but it won't let you spool back up again without unplugging the battery so i'm thinking maybe some sort of overcurrent condition. I don't have an eagletree so I can't give any numbers. BTW the new battery was delivering as much HS (by sound) in normal mode that my older batteries give in idle 2 and I was flying around in idle 2 (screaming and fun). The only thing I can think of is that hitting full collective on the punchout over amped it and sent the Jazz into protection but i'm looking for advice from others that have seen a similar shutdown.

Setup:
Hacker A40 8L
Flightpower Evo25 5000 (first real flight after 3 break ins)
Jazz 80-6-18

[Klinger]

Generally the Jazz faults latch till repowered but ONCE when a mate was flying my 6003D with 55-10-32 he was doing FFF and holding max pitch on for ages and it seemed to do what you described, it shut down fast (not ramped down) but as soon as he got of the collective it started spoolng back up and he finnished the flight no prob's. I dont know what happened and its never happened again!

Hey guys I need help with a diagnoses. This weekend I was flying on a brand new battery (it was screaming:)) and about 3 minutes in i hear the peanut gallery asking to hear for blade barks. So I proceed to come dive down at myself inverted and hit the collective hard for a punch out and I hear everything shutdown. Hit throttle hold even though it sounded like there was still a bit of motor turning and auto'd in. Checked everything out on the ground and nothing seemed hot or out of order and proceeded to spool up again without issue for a short easy test flight. I've had thermal shutdowns in the past but it won't let you spool back up again without unplugging the battery so i'm thinking maybe some sort of overcurrent condition. I don't have an eagletree so I can't give any numbers. BTW the new battery was delivering as much HS (by sound) in normal mode that my older batteries give in idle 2 and I was flying around in idle 2 (screaming and fun). The only thing I can think of is that hitting full collective on the punchout over amped it and sent the Jazz into protection but i'm looking for advice from others that have seen a similar shutdown.

Setup:
Hacker A40 8L
Flightpower Evo25 5000 (first real flight after 3 break ins)
Jazz 80-6-18

[OICU812]

To evaluate what the Jazz went into you have to look at how many flashes the LED gives then reference the manual to what it means.

[Klinger]

To evaluate what the Jazz went into you have to look at how many flashes the LED gives then reference the manual to what it means.

Yep, but when it happened to mine and just spooled up again there was no error showing!

[Big Fil]

I did not see any errors on mine either but it's also hard to see the LED the way my ESC is mounted. I was able to spool up right away without unplugging then re-attaching the battery. I had the same thing happen again last night while doing driving a backwards loop in a little harder than normal. Power went way down then while bringing it back 5-10 to land, 5 to 10 seconds est, you could hear it recover and spool back up to full speed and it seemed fine. It definately seems like something that the ESC is controlling and not like bogging i've ever heard on other helis.

[HFG]

Get an eagletree you slacker !!! Don't make me start the "Buy a mikado" business again :)

[vicrc]

A friend of mine is using the same Hacker 40-8 but with CC85HV and it would just cut out on him. Have tried insensitive current limit setting and still the same result. We have reduced the LV cutout to 4S and so far no cut outs. I am wondering if this motor pulls so much from the battery that it drops the voltage on the battery low enough that the ESC cuts out? I am no expert as I have just started messing with e-helis.

[Big Fil]

Get an eagletree you slacker !!! Don't make me start the "Buy a mikado" business again :)

So when are you getting yours!:YeaBaby:

[HFG]

Ummmm ahhhh arrrrrrrrrr waaaaaaaaa hmmmmmmmm When iam Dr.Capi :)

[LITHIUMSTATIC]

:lol::lol::lol::rolling

[Marlex]

Same issue here in Switzerland.

I just maidened my Logo 500 3D few days ago and had a cut out as well. Today I flew 6 batteries and I got 5 cut-outs. It's not a thermal thing as the Jazz didn't show an error. I even couldn't swich of the motor with idle-swich or throttle hold. Don't ask me how I plugged of the lipo. :thumbdown:

The interesting thing is that I run the same setup:

Logo 500 3D
Hacker A40-10L 8pole
Jazz 80-6-18
85% flat
Thunder Power Extr. V2 6S

[billyd]

What are you doing for power to your Rx ? Could it have been a brown out to the servos which caused a failsafe cutout?

[Marlex]

I'm running the internal Jazz BEC. You think this could be the reason?

[billyd]

It's possible the violent move caused too much of a power drain to the cyclic servos and dropped the voltage from the bec enough to cause the Rx to signal a failsafe to the esc and cause the shut down.

[Big Fil]

I can say in my case that is definately not a brown out. The heli is completely controllable just with greatly reduced power for a few seconds while it recovers.

In fact if you check out one of the Kruezenberger (sp?) videos from the Vbar setup and funfly you can hear his 600 do the same thing.....he then proceeds to fly the snot out of it.