Hv maxx
 

Does anyone make a contoller to run the hvmaxx motor besides novak. It is a sensored motor. I have run it on a none sensored controller. It is not very smooth. I would like to find a sensored controller to run it on. The novaks controller don't seem to holdup. I have two of them sitting around doing nothing. Have more projects coming and I thought they would help get me started on them. Thanks in advance.

I don't know what pinning is used for sensored, i also don't know if there is a standard for..

Is it interesting though? it is a light motor, only capable of a few watts, for the price of the S serie of feigao, i think it's more interesting to buy a new setup (LRP/Reedy) than a complete new controller for that sensored thing?

You trying to tell me to pitch it. It has crossed my mind. I think they work nice for somethings though. Have to keep options open sometime. I do like the smooth factor of the motor. I think the problem is trying to turn to many rpms verse power. If you understand what i;m saying.

I've got the same dilema. I was thinking about a smaller vehicle with a six cell pack application. A friend of mine dusted off his R/C projects from ten years ago. If it won't work in his vehicles, it may go into a stock EMaxx after I get done replacing the remaining stock comonents on the GMaxx. Getting rid of my HV-Maxx has more than crossed my mind, but it would be more of a cut my losses motive.

CHC, you've got a couple EMaxxs don't you? What are you running as powerplants in those?

I running the stock titans right now in one. I tore the tranny gear out. I running a 9xl in the other one with a schulze 18.97. I have 14L waiting for another project as well. I have a complete hvmaxx setup for something. I have a hvmaxx motor that i junked the controller on. I think the controller is bad on the complet hv as well. I had almost enough stuff to start a thrid one. Started ebaying to get read of it.
@mtenthusiast You running the 7xl correct.

yep, 7xl.

On the HV-Maxx, I wish I could recoup the repair costs. The HV-Maxx was a good fit at first because of ease of installation. I'm not sure whether I want to run the stock titans or the HV-Maxx in the snow yet :eek:

I wish i could get the money back it cost me for the two. I could have me a killer brushless system. If I had only found this place before then.

I went with what the LHS had in case I had issues. As it turns out, it didn't help. I still had to deal with Novak directly. I really haven't seen too many opinions posted about the HV-Maxx other than only recommendations for either Feigao or Lehner when queried about ESC/motor combinations. I've gone back to the LHS and mentioned this site. We'll see if they see the light!

Some time we all need a little help to see the light. Just wish i had seen it sooner. 600 bucks would have put me in the good brushless bracket. I bought the novak when they fist came out. What a waste. I did get a couple fans out the deal. :lol:

that are the most expensive fans in history..

Will you have to break the $600 down in to sections. I got a capictor of it with fan and mount to. I took the heatsink off to run that on my 7xl. Cut the wire off and put them on my schulze. I think it would have been cheaper to Buy the stuff out right. :) LIVE AND LEARN. RC monster is the place to go.

Does anyone knowa bout a controller? Want to know before the pitching of motor.

What controller have you used the motor on? Any sensorless controller will run the Novak motor(and it isn't a bad motor at all, actually).

I ran it with my schulze. The novak fried. It popped it hissed it smoked it is history. It was bad about cogging.(the schulze) I tried all kinds of settings. Some worked better than others. It is not bad motor. I have a few projects coming it will work with. I don't want to spend a fortune on a esc for it. I would pitch it and go sensorless before hand. What can you do for me mike?

PS Can you get the 7020s there mike? I don't see them any more on the site.

Did you try different gearing? How about changing the switching frequency on the controller?

Yep tried that mike. If i got it to stop cogging it sucked. Geared it down kind of low. It seems like the motor needs to change timing to run best. The armature is so small in diameter. I don't think it has the torque of sensorless. Have pic if you like it. 7xl verse the novak hv maxx armature.

Check out the difference of size. This may explain some.

There is no doubt that the 7xl is way more motor than the novak. The novak is more like a 380 size xl motor. Sensoless or sensored has nothing to do with it. It is the size of the magnet(novak is smaller and therefore has less power). How many cells did you run it on? I know it won't touch the 7xl, but it is still a decent motor-just not the beast that the 7xl is.

I started with 12. went to 14 I won't worried about motor so. I packed a whopping 18cells on it. I know it don't supposed to take it. It was smooth on bottom with one setting but the top end sucked. got the top right and the bottom sucked. The novak motor needs a sensored controller. JMO Two novaks are not a 7xl.

Ahhh Look at that.. Tiny little mini micro rotor..

The strength of the two magnets are unreal. The 7xl rotor is a lot stronger. Not sure if it is because it is bigger or just better.

I was reading In another thread. They mentioned a lrp sphere for sensored motors. Any one tell me about this controller. Point me in a direction of info on it would help to.

The Sphere is the new associated brushless controller. Good for 4-7 cells. It is designed for the 1/10 size vehicles.

The controller is listed here as well.

I was looking for some more cells. I liketo run 12 cells. What do you have mike or can get?

cells? Name it and I can get it.

I was hoping you knew mike on a controller to run a sensored motor on 12 cells besides novak. don't want to spend a fortune. Before that I would pitch it and go sensorless.

As I said, any sensorless controller should run the motor. I can't think of any 12 cell sensored controller that would work with it.

That is the problem i am having. To many cells. Thanks mike. I have to keep my eyes open.

I was wondering if you guys could help me out. I've run across a guy that is going to run a single hv maxx and is using an otherwise stock emaxx. he plans on running 6400mah (prolly 2s) lipos. say he kept tock gearing or close to it, what is going to be his max run time. i said a max of 20-25mins if running hard

Are you going to run a single 2s pack or 2 2s packs? If you running the 2 2s packs I would not run stock gearing.

its not me running it, so i dont realy care. i think he is running 2 2s packs (or trying to). i am just looking for some runtime figures to see who is right

geared like that the run time will not be much. gear it about 12 72 get alot better run time and power. Will run a little slower. should get 20 -25 depend on how you run it geared 12 72. Not sure been a while since ran a hv.

There is no really good replacement for the Novak HV controller, except a few from Aveox, but they are not true-car type ESC.
I spoke with a Feigao representative about their line of sensored BL motors and he told me that they are working on controller to run with them. So sooner or later we will have a true car BL setup, sensored motor and ESC.

Novak HV controller has the same weak link as the EVX ESC (I do not want to go too deeply into details) but, it can be modified to outperform any BL ESC on the RC market in terms of the current capacity.

Artur

griffin, please elaborate a little.

I did once and scared the entire forum thread. So now I will be a little bit careful about subjects for discussion. But, what would you like me to elaborate on.

Artur

how it can be modified to out perform and bl esc on the market.

In respect to current ratings only (other advanced features won't be available without reprogramming the CPU :) )... Single TO-220 (FET package type used in EVX and HV) handles more then SOIC-8 (FET package used in most BL ESC, lots of them) and heat transfer more efficient.

So if you fix (modify) Fet control in HV ESC than in standard configuration (with 2 Fets per phase) you should get 210x2A per phase. Which corresponds to 1.73*2*210A total current capacity. But if i install 3-4 and even get new generation package FET...

Artur

http://forum.rcdesign.ru/index.php?a...e=post&id=3643

Datasheet

the only problem is the voltage it can be ran on. That would stop it from out preform any esc in the world.. ;) (30V just isn't enough..) the spikes that are put thru it with braking are higher, this is in my opinion the reason for the schulzes to burn down)

You could modify the whole layout though, but a very important value in choosing the FET's is the speed it is capable of to work on.

Have you ever check what is available in FET's department?

A high voltage spike occurs due to the switching frequency and motor inductance. To generate voltage from motor while braking higher then battery voltage, motor should spin faster…

I will stop here. Serum maybe we should create a topic on how it works? Because looks like some would like to know the theory behind electronics as well as real-world experience.

Artur