Model Boat Mayhem

Technical, Techniques, Hints, and Tips => The "Black Arts!" ( Electrics & Electronics ) => Topic started by: Random on February 22, 2012, 11:36:57 am

Title: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 11:36:57 am
I just bought two Mtroniks microViper Marine-10 ESCs, new from Mtroniks. These are my first ESCs.

After setup, I get this behaviour:
 - Stick full forwards = full throttle forwards.
 - Stick centre = neutral.
 - Stick 3/4 back = full throttle backwards.
 - Stick full back = motor stops.

It's the last bit - motor stopped when stick full back - that bothers me. Why does it do that? Both Vipers behave the same.

Tx is Twister R/C, Rx is Planet R6M. The Tx is in Mode-2 A/C-Type, with no custom curves or mixes. An ordinary servo on the throttle channel works fine.
Title: Re: MTroniks ESC - Should it do this?
Post by: bikerdude666 on February 22, 2012, 12:36:38 pm
I just bought two Mtroniks microViper Marine-10 ESCs, new from Mtroniks. These are my first ESCs.

After setup, I get this behaviour:
 - Stick full forwards = full throttle forwards.
 - Stick centre = neutral.
 - Stick 3/4 back = full throttle backwards.
 - Stick full back = motor stops.

It's the last bit - motor stopped when stick full back - that bothers me. Why does it do that? Both Vipers behave the same.

Tx is Twister R/C, Rx is Planet R6M. The Tx is in Mode-2 A/C-Type, with no custom curves or mixes. An ordinary servo on the throttle channel works fine.

I've not used microvipers, but all my ESC's are Mtroniks and I don't have this problem on any of them. Did you buy them direct from Mtroniks? if so I'd contact them as they will take return delivery of them and have a look at them, they fixed a couple of marine 20's for me a while back.
Title: Re: MTroniks ESC - Should it do this?
Post by: dreadnought72 on February 22, 2012, 12:39:22 pm
You say after setup - do you mean the ESC set-up? (Which surely sets the full range of the stick/incoming proportional signal from full forward, neutral, full reverse)

Andy
Title: Re: MTroniks ESC - Should it do this?
Post by: The long Build on February 22, 2012, 12:57:50 pm
I would find it quite surprising if it was a fault if both of them do it..

Email /  Phone them they are very helpful. I had a similar prob with 2 new 25's It was my error in the end.. :-))
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 01:03:24 pm
Yes, I mean after the ESC setup.

I did contact Mtroniks.
First reply - very fast - was that my Tx was set up wrongly. But apart from changing to Mode2 it was at factory defaults.
Second reply - equally fast - was that I needed to reverse the throttle direction. Which I did and it just made the motor stop at the other end of stick-travel instead. No (useful) change there.
Since then, not a bean heard from them. Maybe they're thinking about it.

I have since found that if I reduce the throttle throw on the Tx (by adjusting the throttle curve so it only goes from 20% minimum to 80% maximum), then the ESCs work as I expect them to. But why should I have to do that? The servo's work fine with full-throw output. Why not the ESC?

Both units were from their "ex-demo" sale range, which claims to be items which have been randomly taken off the production line to test quality. In which case they've already been tested by Mtroniks so it's unlikely they're faulty. Anyway, two units with the same fault...?

Reckon I'll send them back for refund. They don't seem to be able to cope with full-deflection Tx output.

They are also a nightmare to set up on a R6M Rx, because you have only 2 secs after power-on to enter the ESC's setup mode. But the Rx won't have locked to the Tx by then. So when you enter ESC setup, the Rx is sending fail-safe min-throttle to the ESC, which confuses the setup as it expects the stick to be at neutral. The only way round it is to power the Rx by a separate battery temporarily during setup. Which means disconnecting the ESC's red lead during setup and reconnecting it afterwards. An all-round pain.

So what should I get instead?
Title: Re: MTroniks ESC - Should it do this?
Post by: chingdevil on February 22, 2012, 01:04:26 pm
I have only recently used 2 microviper 10amp esc's and I had the same problem in forward, if I set them up as recommneded by them. If I do not press the button to teach and leave them as they are they are ok. As the model they are in is only going to be going slow, I am not bothered they work fine. My set up is a Planet 2.4ghz tx with a 4 channel rx.

Brian
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 01:07:48 pm
@ The Long Build:

Wonder if you could explain what the solution was, with your 25's? If it's similar, maybe I'm making the same mistake.
Title: Re: MTroniks ESC - Should it do this?
Post by: dreadnought72 on February 22, 2012, 01:15:45 pm
They are also a nightmare to set up on a R6M Rx, because you have only 2 secs after power-on to enter the ESC's setup mode. But the Rx won't have locked to the Tx by then. So when you enter ESC setup, the Rx is sending fail-safe min-throttle to the ESC, which confuses the setup as it expects the stick to be at neutral. The only way round it is to power the Rx by a separate battery temporarily during setup. Which means disconnecting the ESC's red lead during setup and reconnecting it afterwards. An all-round pain.

Hang on a sec - the ESCs have a power switch. Why not switch the tx and rx on, let them bind/think about things/have a cuppa, then turn on the power to one ESC at a time and set them? The procedue seems straightforward enough (http://www.mtroniks.net/resources/uViperMarineInstructionManual.jpg). If they're like the Marine 15s they'll remember they're settings for next time.

Andy
Title: Re: MTroniks ESC - Should it do this?
Post by: Rex Hunt on February 22, 2012, 01:16:54 pm
@ The Long Build:

Wonder if you could explain what the solution was, with your 25's? If it's similar, maybe I'm making the same mistake.

And me!

Mine were bought over a year ago and I cannot find the receipt {:-{ otherwise they would be going back for a refund.
One works ok, the second is exactly as above.....both run from a Robbe(Futaba) F14 Navy, and with identical 'set up'.
No fancy computer control to possibly 'mess things up'!
Cure so far.....replace with different make....   Aaah, thats better!

Rex
Title: Re: MTroniks ESC - Should it do this?
Post by: sailorboy61 on February 22, 2012, 01:19:51 pm
And me!
mine were bought over a year ago and I cannot find the reciept.
otherwise they would be going back for a refund.
1 works ok
the second is exactly as above.....both run from a Robbe(Futaba) F14 Navy, and with identical 'set up'.
Rex

My experience of Mtroniks is that if the ESC is faulty, they will replace it regardless of receipt etc - gotta be worth an email to them to check?
Title: Re: MTroniks ESC - Should it do this?
Post by: The long Build on February 22, 2012, 01:21:09 pm
I tended to go for the randaom approch technique..

But what I remember was that I turned off both rx and tx, then turned tx back on then rx, doing the useal set up, however this seemed to go straight to full throttle , so I then disconected the motor pressed the button to get red/green flashing lights, then full throttle forward 2seconds - nuetral - then reverse 2seconds , pluged motor back in and it seemed ok..

I am using one of the 2.4 from Howes that they sell for £ 35.00 can not remember the name..
Title: Re: MTroniks ESC - Should it do this?
Post by: Subculture on February 22, 2012, 01:27:56 pm
Mtroniks ESC's carry a 24 month warranty. but have you tried recalibrating the controller? Simple enough to do, and it may be your problem.

http://www.mtroniks.net/resources/uViperMarineInstructionManual.jpg
Title: Re: MTroniks ESC - Should it do this?
Post by: Netleyned on February 22, 2012, 01:35:29 pm
I find that turning on the TX waggling the throttle up and down a few times and then turning on th RX and pressing the setup button
on the esc seems to do the trick with radiolink or planet radios that seem to have a built in failsafe for aircraft
It seems to be an anomaly with MTronics.

Ned
Title: Re: MTroniks ESC - Should it do this?
Post by: triumphjon on February 22, 2012, 01:36:48 pm
glad its not just me , ive had exactly the same issues last night , my set up being ;- planet 2.4 ghz tx / rx , a sail arm servo & a standard servo for rudder , and the mtroniks marine 20 esc ( fused at 15A ) set the esc as per instructions , yet when my tx stick is moved to full ahead it cuts out just before full is acheived !  jon
Title: Re: MTroniks ESC - Should it do this?
Post by: The long Build on February 22, 2012, 01:45:20 pm
I find that turning on the TX waggling the throttle up and down a few times and then turning on th RX and pressing the setup button
on the esc seems to do the trick with radiolink or planet radios that seem to have a built in failsafe for aircraft
It seems to be an anomaly with MTronics.

Ned

that was the set "Radiolink"

And yes that method has worked for me as well..  :}
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 01:49:57 pm
@dreadnought42

Good idea, but the ESC has a BEC which powers-up the Rx when the ESC is turned on. So (as I did describe) I installed a temporary separate power supply for the Rx to do the ESC setup. But that means I have to disconnect the BEC first by extracting the red cable from the ESC's 3-wire lead, and then reinstall it after. Imagine trying to do that in the field, if you need to re-do the setup because, say, you've accidentally pressed the setup button at the wrong time.
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 01:52:25 pm
@ netleyned

Yes, it is a good idea to move the Tx sticks before turning on the ESC for setup. As you say, some modern Tx's move the controls to a fail-safe position until you move a stick.
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 02:32:08 pm
In the space of 3 hours two other Mtroniks customers have already reported the same problem on this thread. So it would be surprising if Mtroniks had not before encountered the issue. But they just gave me a bit of a run-around and told me it was my Tx setup. So now I don't know whether to risk going through the same hassle by asking for replacements. Probably should just get a refund and shop elsewhere.

Title: Re: MTroniks ESC - Should it do this?
Post by: bikerdude666 on February 22, 2012, 02:43:16 pm
Typically after saying I've not had that problem, I've just been playing around with another 'project' and I've experienced the same problem, did the set up, and then pushed the stick full forward and it shut down just short of full power, but reverse was fine, switched the motor wires round and I had the same problem but in reverse. It's a new ESC (was a present for christmas) but I've not had a problem like this before. Only problem I've had before is that after setting up an ESC there was still no speed control, just on and off.

I'll email them about this aswell, maybe if they get enough emails about it they'll look into it more...
Title: Re: MTroniks ESC - Should it do this?
Post by: Subculture on February 22, 2012, 03:36:26 pm
I use Microgyros esc's for brushed motors, never had any problems with them at all.
Title: Re: MTroniks ESC - Should it do this?
Post by: Patrick Henry on February 22, 2012, 04:35:58 pm
I've never had a problem with Mtroniks esc's (touch wood), every one has worked exactly as it says on the tin.

My only gripe with most ecs, be them made by Mtroniks or Microgyros or whoever is the thickness of wire the manufactures fit them with. It's not too bad in a boat with plenty of room in the engine bay, but in the confines of a wtc or a radio box in a sub, trying to persuade those heavy duty cables to go where you want them to go and not where they want to go can lead to a fair amount of strong language.



Rich
Title: Re: MTroniks ESC - Should it do this?
Post by: Subculture on February 22, 2012, 05:03:47 pm
If that's a problem, just trim the wires back near the controller and join in some thinner gauge wire. Manufacturers are going to put wire on that allows the user to get maximum potential out of the controller, so if you buy a 25A controller, the wires have got to be able to carry that plus a bit extra without any significant resistance.
Title: Re: MTroniks ESC - Should it do this?
Post by: LarryW on February 22, 2012, 05:28:08 pm
         
        action is /   to buy ACTION  no problems  :-))     Larry...
Title: Re: MTroniks ESC - Should it do this?
Post by: irishcarguy on February 22, 2012, 06:25:22 pm
I agree with you Larry, Dave makes very neat stuff no fuss, it just works as designed. Some companies expect you to be an electronics engineer to operate their products. They forget once bitten twice shy, I for one do not need that kind of headache. Good warranty is nice but the best warranty is the warranty you never have to use. Mick B.
Title: Re: MTroniks ESC - Should it do this?
Post by: malcolmfrary on February 22, 2012, 07:07:07 pm
I have noticed with Mtronics that if the speed signal goes out of the expected range (i.e. more than full speed due to operation of the trim slider), rather than just agree that you want full speed, it will assume that there is an invalid signal, and play safe by switching off. 
Trying to do a setup with a servo reverse thrown on the TX really does confuse the ESC logic.
Deliberately hitting the setup button withing the 2 seconds is a minor achievement, accidentally hitting it at the inappropriate time would be a miracle, even if not a nice one.
Title: Re: MTroniks ESC - Should it do this?
Post by: Subculture on February 22, 2012, 08:24:28 pm
That sounds like a significant bug in the controllers firmware that ought to be addressed.
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 22, 2012, 09:03:31 pm
That's decided it. They're going back for refund.

Thanks to everyone who replied.

Anyone else who Googles this thread and has the same problem, please add a note. Maybe Mtroniks will take heed.
Title: Re: MTroniks ESC - Should it do this?
Post by: murphy1570 on February 23, 2012, 12:42:27 am
Hello folks
I to have had very similar problems with an MTRONICS 10amp esc I bought three weeks ago, I phoned them up and was advised to remove the red wire and set it up with a seperate battery (ie no bec) then to put the red wire back in to the servo plug and that would do the trick!! I followed there advice and the esc now works but rather eratically, cutting out not stopping at neutral etc, very simiilar to the problems described by other members,
I think another phone call to Mtronics tommorow is in order and perhaps I will return the esc and ask for a replacement that works as it says "on the tin" or a refund, and try another manufacturer.
Any help on this would be appreciated folks.
All the best, John.
Title: Re: MTroniks ESC - Should it do this?
Post by: irishcarguy on February 23, 2012, 07:51:33 am
Look up ACTion Electronics they are one of our forum sponsors. Dave makes all kinds of first class stuff for our boats, you will not be disappointed. No connection just a very happy customer. Mick B.
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 23, 2012, 09:00:52 am
On initial contact with Mtroniks they told me the problem was down to me. First saying that my Tx setup was wrong, and after that telling me I needed to reverse the throttle. Today, however, they've changed tune and more-or-less admitted they know about the issue. Why the $%£& didn't they say so straight away?

The reason for the issue you are seeing is that the speed controller looks
for a 'window' of throttle travel when going through set up. If the 'window'
of throttle it sees  is larger than the speed controller thinks is
acceptable it will use the extreme of throttle that it sees and is happy
with as its full throttle position. If when you apply throttle you go past
this point the speed controller will, in effect, drop of the end of the
scale and therefore default to neutral.

This issue is a new one that has cropped up recently due to transmitter
manufacturers changing the way they design the throttle range.
This issue is solved, from our point of view, with the new Mtroniks tio
Marine controllers but can be an issue on some Viper controllers, and this
is down to tolerances as it doesn't happen with 99% of the Viper controllers
that are in the market.

The way to solve it when using a viper is to simply move your throttle trim
back a few notches, then go through set up again. What this does is move the
throttle window of the transmitter down a bit and back into the area that
the Viper speed controllers are happy with.


It seems somewhat complacent to say that the "issue is solved" because Mtroniks have another model of controller which doesn't suffer the same defect. If only 1% of Vipers suffer the problem then an immediate offer to exchange the units would seem to be the best policy to preserve Mtroniks reputation. But instead they gave me a bit of a run-around and then finally came clean and told me I'd have to live with it. So - call me cynical - could it be that rather less than "99% of Viper controllers that are in the market" really work OK?

Maybe I'm in a minority when I expect stuff from a 'reputable' brand to work as advertised. But my Vipers are in the post for refund. Not buying that model again.
Title: Re: MTroniks ESC - Should it do this?
Post by: Netleyned on February 23, 2012, 09:06:38 am
Yet another version of the reason for it from MTronics

Ned
Title: Re: MTroniks ESC - Should it do this?
Post by: ACTion on February 23, 2012, 10:44:53 am
Not 100% sure about this reply, although I can sympathise with MTroniks ref the haphazard way that some new radios are built. In our experience the throttle signal value varies only within the “accepted” industry standards of 1.0mS and 2.0mS. I’ve just checked a random sample of our 2.4GHz test sets and found that the lowest signal was 1.1mS (Spektrum DX5) while the highest was 2.0mS (Futaba 6EXA). I would have thought that MTroniks’ ESCs would recognise at least signals within this range – it appears not, unless there are a helluva lot of very badly setup sets out there. The only way to get around this ESC problem is to increase the size of the range of signals which the ESC regards as valid - we use 0.9mS to 2.2mS  - and it's also perhaps best to have full automatic setting whenever you switch on (as opposed to flashing lights, frantic stick juggling and button pressing).
We've had this so-called "plug and play" for years..................
I rest my case.
Dave M
Title: Re: MTroniks ESC - Should it do this?
Post by: The long Build on February 23, 2012, 01:19:17 pm
And don't forget Setting up an ESC also depends on:-

Which Pond/lake you are at.

Your Height

What leg you are kneeling on

The time of Year..

& the weight of the hammer to make any minor adjustments to when it does not work..  :}
Title: Re: MTroniks ESC - Should it do this?
Post by: malcolmfrary on February 23, 2012, 04:14:02 pm
And don't forget Setting up an ESC also depends on:-

Which Pond/lake you are at.

Your Height

What leg you are kneeling on

The time of Year..

& the weight of the hammer to make any minor adjustments to when it does not work..  :}
...Shoe size.......

It is a problem for any manufacturer dealing in quantity - to keep costs down you need to buy in bulk - in this case I presume there is a "program once only" PIC in there which means that any decisions made pre production are now burned into every chip in the pipeline.  With fully sealed units, there is no chance of a rethink and change as anything other than a major undertaking.  An advantage for smaller production runs where the manufacturer is not only aware of feedback, but can actually do something about it.
Title: Re: MTroniks ESC - Should it do this?
Post by: HS93 (RIP) on February 23, 2012, 04:16:18 pm
Bring back  BOB'S BOARDS O0

Peter ;D
Title: Re: MTroniks ESC - Should it do this?
Post by: Subculture on February 23, 2012, 05:40:27 pm
Still have a couple of those new in packet, I'll take an ESC any day.
Title: Re: MTroniks ESC - Should it do this?
Post by: triumphjon on February 23, 2012, 07:01:34 pm
i find the explaination of the fault we are experiencing very odd , the esc that ive just fitted is one of the " taken off the production line 7 tested " range and yet it has this fault of cutting out when my stick is on full power ?
Title: Re: MTroniks ESC - Should it do this?
Post by: john s 2 on February 23, 2012, 07:29:10 pm
If Mtronks know of this problem, then why as responsible makers are they selling Escs that may not work? It seems worse because they have a range that is supposed to overcome the problems. Why not dicntinue the suspect range? John.
Title: Re: MTroniks ESC - Should it do this?
Post by: Rex Hunt on February 23, 2012, 08:15:19 pm
The tale of the issue being down to'design of new transmitters' doesn't hold water...........mine is a 7 year ols Robbe F14 Navy!

Rex
Title: Re: MTroniks ESC - Should it do this?
Post by: irishcarguy on February 24, 2012, 09:09:45 am
It seems today the motto is put it on the market & let the customer pay the cost of development, poor business practice if you ask me. Companies will not be right 100% of the time but then the faulty item should be recalled & replaced @ no cost to the customer. Mick B
Title: Re: MTroniks ESC - Should it do this?
Post by: ACTion on February 24, 2012, 09:25:36 am
It seems today the motto is put it on the market & let the customer pay the cost of development, poor business practice if you ask me.
It hasn't done Microsoft a great deal of harm, Mick!  8)
DM
Title: Re: MTroniks ESC - Should it do this?
Post by: Subculture on February 24, 2012, 09:55:31 am
I looked at the Planet instruction manual, and it says the throttle failsafe is programmable, so just program it so that the failsafe position is neutral (which is what you want anyway with a boat).

Something else you can try is to connect the controller to another channel and set-up the range using that.
Title: Re: MTroniks ESC - Should it do this?
Post by: irishcarguy on February 24, 2012, 08:00:00 pm
Or you could buy one that does not have those kinds of problems in the first place. Mick B.
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 27, 2012, 12:17:05 pm
Just had the refund from Mtroniks for those two Vipers. Overall the whole transaction has been a bit of a waste of time for me. But on the positive side Mtroniks have been communicative throughout and have given a refund without hassle.

My personal opinion is that Mtroniks are making a commercial mistake continuing to sell the Viper without giving the customer some warning that there may be compatibility problems with some radio gear. But that's their business.

Remember when considering Mtroniks that the Viper range may need more setting up than the instructions indicate. I.e. you may need to modify your Tx throttle curve or range. Even if it works flawlessly with your existing Tx/Rx, it may need this additional setup after you upgrade in the future.

Remember also that Mtroniks say that the new Tio brushed-motor range has no such problems.

Either way, with Tio or Viper, if you buy direct from www.mtroniks.net, you can be pretty sure that you'll get a refund if it doesn't work for you. Which is likely to be a lot better than, say, buying a no-brand ESC from ebay and hoping for the best.
Title: Re: MTroniks ESC - Should it do this?
Post by: David 48 on February 27, 2012, 12:59:19 pm
I have been following this thread ,I am in the market for a TX ,all very intresting.I would have thought Sales of Goods and Fit for purpose rules and regs. would come into this somewhere. Very pleased that the supplier has come good .Keep faith with human race.
Title: Re: MTroniks ESC - Should it do this?
Post by: john s 2 on February 27, 2012, 01:46:06 pm
Sales and goods act can be useful. Its worth remembering that items from China are not covered so if faulty its hard to do anything. John.
Title: Re: MTroniks ESC - Should it do this?
Post by: Random on February 27, 2012, 02:16:29 pm
I had no need to invoke any fit-for-purpose acts, etc. Mtroniks have a good reputation for dealing with problems raised by customers. In this case they agreed to refund without any argument at all. The original sale was "free postage" (i.e. postage was included in the price), so my only loss was the 2nd class post to send the items back. I'm not complaining, and I don't think prospective customers should feel that buying from Mtroniks is risky. Quite the opposite.

David-48: Do bear in mind that these Vipers will work with modern Tx/Rx, so you shouldn't limit your choice of Tx based on what ESCs you already have. But Mtroniks fail to explain in their instructions that you may have to reprogram the Tx output. Any Tx where the output range can be reduced, or where the curve can be adjusted, should work OK. But I'd rather buy an ESC that works out of the box. Which means one of the other makes mentioned in this thread, or maybe a Mtroniks Tio.
Title: Re: MTroniks ESC - Should it do this?
Post by: cuppa on February 27, 2012, 09:59:10 pm
I have just experienced the same problem with a viper.

Did what others have done and adjusted the end point adjustment of the throttle stick to match the point where the 'over-travel' was causing the cut in reverse and it cured it.

Not a problem as i was planning to adjust the end point in reverse to only give a very slow speed due to my grandson having a habit of trying to run flat out in reverse and swamping the model!

Title: Re: MTroniks ESC - Should it do this?
Post by: Random on March 01, 2012, 10:28:51 am
On the basis of better the (waterproof) devil I know...

...I just bought a Mtroniks Tio Marine 15 to try as a possible replacement for the microViper Marine 10's which gave the original problem.

The Tio works fine across the whole range of throttle stick movement. So Mtroniks are correct - the Tio does not suffer the same problem as the microViper. It's only a little more expensive, but somewhat bigger. Though much of the size increase will be because it's a 15A module rather than 10A. And it can be set up for Li-Po batteries.

The Tio has to be set up the same way as the Viper by pressing a button within 2 secs etc. Which means - with my system at least - you do have to power the Rx separately when doing the initial setup. As others have pointed out, there are other brand ESCs which don't need this setup process. (But are they waterproof? An important consideration when the model is in the hands of a 7-year-old.)
Title: Re: MTroniks ESC - Should it do this?
Post by: NickKK on March 09, 2012, 02:27:37 am
I have had three MTronics Esc's .... two of which I sent back and got a refund. The third is in a box somewhere ... I use  Action or Electronize Esc's now ... At least I know they work with no  fancy and complicated set up.... I can't remember what the problem was with one of them ... One just refused to work full stop, straight from the box. The one I kept I have had problems getting the full power through it at full throttle ... For some reason it is only delivering about a third of the power to the motor.  I'll not buy another Mtronics.
Title: Re: MTroniks ESC - Should it do this?
Post by: More Coffee on March 23, 2012, 06:51:35 am
It almost seems to me that full reverse is applying the brakes..Sometimes this is on a normally of switch..other times depending how the radio is programmed you can get full reverse the stop,,because the radio just decided that the input to reverse warrents the brakes ..so it applies them for you.

Title: Re: MTroniks ESC - Should it do this?
Post by: Captain Flack on March 24, 2012, 08:41:58 am
Just had the same thing with my Viper 15.  After reading through here I simply reduced the ATVs and all was well again.