HV85 not up to the job?

[skunkworx]

Just like the title says: I put my throttle up to 100% and 80% and it cuts out real bad on hard vertical punch-outs and pitchy manuevers that use a lot of positive pitch. I don't have as much of a problem on the inverted side, but I'm guessing it either grabs cleaner air or I might not have as much pitch on the negative side. I also tried doing flatter V-curves with the ends spiked up a bit, but that didn't help. It was on governed headspeeds before, so I never found the fault until I went to fixed endpoints.

It had occured to me that the problem might be that it's an original HV85 (not an ICE2 80HV), but I don't know the difference between the two and don't know if it would make a difference. I was also told that it *could* be my Deans plugs, but they seem to be soldered up really well. I will probably find out if they are cold when I opene up the harness to put in the 120HV (which I happen to have, bagged up on the shelf) while I send the HV85 in. But would I still have the same problem with the new/replacement ESC as well? I figured the 630Kv would be a little more forgiving on the amperage (and gears), but maybe I'm wrong? Any suggestions would be appreciated.

Specs:
Motor: Scorpion 630Kv
Pinion: 12t
Batteries: Punch RC 50C and Sky Lipo 40C, 3300's (very low internal resistance and low flight counts, they perform great on my other E helis)
BEC: CC BEC Pro (V1)
Servos: Align 610's and 650
Gyro: BeastX V3.08
Blades: Radix (SB's I think?)
Tails: KBDD EE

ESC
Timing: 5*
Control: Fixed endpoints, heli mode
Firmware: the latest one posted
Auto mode: Enabled


I fly with the canopy on too BTW. Motor comes down warm to hot. Haven't broken out the temp gun yet, but probably will on the next go-round just to be certain I'm not killing my electronics. I might end up doing the vent mod on the windscreen here shortly just to be doubly sure it doesn't therm out on me (especially since it gets ridiculouosly hot here).

[Slyster]

What motor? The 600 or 700 class Scorpion. My Quantum motor (600) never triggers over current.

Although my 80LV/Neu 1907 on my 500 did... so I turned on KSA mode... and it went away. Try that.

[skunkworx]

Sorry, forgot there was two types. It's the 4025-630 I believe (600 type). Not sure the shaft size either if that makes any difference? The model has been in a few minor crashes (less than 3 total) and none of them touched the motor that I can tell (no scratches or burrs anywhere).

[Slyster]

Maybe try KSA mode.. if that doesn't help.. different pinion? It should't trigger over current.. mine never did with the 4025-550kv.

[ke6d]

Originally Posted by Slyster

Maybe try KSA mode.. if that doesn't help.. different pinion? It should't trigger over current.. mine never did with the 4025-550kv.

The OP has a CC85HV -- Not a Kontronik ESC

[ke6d]

I used the CC85HV with the Scorpion 4025-630KV before on my 12S TRex-600. I never had any cut out on pitch pump or fast tic-toc. I suspect your wiring has a problem somewhere. My CC85HV was barely warm after a 4:30min flight (Scorpion motor is a lot warmer)

I think 120A ESC is a bit overkill for the Scorpion 4025-630KV motor. On my T-Rex 700 running a Jive80HV and Pyro 700-52 motor, the highest current that I recorded was 85A. Most of the time, the current stays around 60A on the 700 size heli.

Edit: Re-reading your post, you said you have the latest FW posted. It is not v4.0, is it? In the Helifreak CC forum, a lot of people has cut out problem with FW v4.0 after upgrading firmware. You may want to read that thread.

[Slyster]

DOH! I just saw HV8x and jumped to a Jive conclusion I don't know why. Nevermind!.. everything I said is worthless now... sorry Tim

[CeeveeSiN]

I'm using a Castle HV 80 with a Scorpion ( Hyperion) 4035-500 and I get ballistic performance..

something is set wrong.

[skunkworx]

Originally Posted by Slyster

everything I said is worthless now... sorry Tim

No worries man. I'm happy with any replies I can get. I do the same thing occasionally, so foot-in-mouth is a flavor I'm somewhat used to!

Would it be a good idea to keep the 120 on there if I decide to ever try a 4035 motor though? Or will an 80HV be able to handle that as well? I don't particularly think I need the machine to be super ballistic but it would be fun to say I tried it at least. Seems like a shame and a waste not to try on a bird this versatile.

[ChuckL]

I have had an HV85 with deans on my 12s fusion since day one and never had a problem. The same controller was on an 8s O550, a Gohbee 8s Phazor and a 8s Trex 600 not sure how many years old it is but several with tons of use and it has never missed a beat in either gov mode or fixed end points. I have however always used Neu motors with it though so not a direct comparison as far as the motor is concerned.

[skunkworx]

Well, I ended up just dropping the 120HV in its place. Might keep the HV85 around for another project or simply as back-up. I did notice some pretty terrible solder joints throughout the harness and one of the bullets was frozen solid, so undoubtedly that was the bottleneck. I went through some pretty great lengths to put the 120 in, so I doubt I'll want to go back. I also have the logger on the 120, so yet another nail in the HV85 coffin (for now).

Still not sure about the motor though. I try to keep the bearings lubed up but no guarantees on that that will make it work any better. Still haven't had a chance to take it up for a flight so hopefully the logger will give me a good bit of feedback.

[Mr Nice Guy]

I have run an HV85 on my Trex 700e for years. It has been flawless and only gets about 110 degrees under hard flying conditions. I have run a scorpion 4035-560 and currently a Kontronik Pyro 700-45. I can't imagine it being overloaded in a 600 if your setup is correct. I think your bad solder joints are what was causing you the issue.

[Wh1teAfr1can]

I find the best way to solder bullets is to put them in a vice and then heat them with a small torch then put solder in the and slowly dip the wire in there and when you see the solder flow into the wire remove the heat and dont move the wire.

[skunkworx]

It wasn't my wiring job. I got the heli used from a friend on trade. I've only ever had one cold solder on any of my ships previously, so I have never come across the same problem before. After I opened up the heat shrink on the harness, I discovered all the bad stuff and attributed that to causing the power issues. Since I thought my controller was part of the recall, I was boxing it up to send in to Castle, but I re-read their advisory and they said it was only for ICE HV speedies, not the Phoenix HV series.

[CeeveeSiN]

Originally Posted by skunkworx

It wasn't my wiring job. I got the heli used from a friend on trade. I've only ever had one cold solder on any of my ships previously, so I have never come across the same problem before. After I opened up the heat shrink on the harness, I discovered all the bad stuff and attributed that to causing the power issues. Since I thought my controller was part of the recall, I was boxing it up to send in to Castle, but I re-read their advisory and they said it was only for ICE HV speedies, not the Phoenix HV series.

HV 85 should have been in the recall.. they did all of mine.

[skunkworx]

Originally Posted by CeeveeSiN

HV 85 should have been in the recall.. they did all of mine.

The lady on the phone said that it wasn't. Hmmm....that's kind of odd.

[Chris Sexton]

Is it an ICE 80HV or the Phoenix 85HV? I don't think the Phoenix line was included in the recall, only the ICE series. Could be wrong though.

[skunkworx]

The Phoenix 85 isn't part of the recall, so it should work just fine. It's just been discontinued is all, and was replaced by the ICE series. Looking at the controller, it seems fine. No warped or damaged parts anywhere. It just shuts down in flight sometimes. Not all the way, but massive loss of power. I want to send it in and get it checked out and maybe get the wires replaced on it since they're so short. I just don't want the bill doubling or tripling in size on me -- which I've had happen before when I sent stuff in for repair.

[Wh1teAfr1can]

have you checked the setup in the esc specifically the over current cuttoff?

[skunkworx]

I don't remember specifically looking at the over-current stuff, but it was probably set to default. I'm going to send it in for testing, so I'll hopefully have a better answer when it comes back. I'll let you guys know if they come up with anything.