GWS Speed Controller

[waterboat]

Hi Everyone,
This is my first attempt:

I have a question about a GWS Speed control I bought recently call a " Navigator" F112.
My Question is that having connected this I find that I only have a slow to fast control on the Forward montion, where as I only have Full speed of nothing in reverse, is this right or is there a problem somewhere.

[Tachikaze]

Where you from? Damn that is one powerful ESC you found there:D
My first impression is you have it hooked up with forward running the vehicle in reverse.
What motor are you using and what are you running this in?

[waterboat]

Hi,
I am from England.

The boat is a Huntsman 20" model. I have installed a 600 motor
and are using a 8.4volt 7 cell 1700 pack.
I have tried changing rev for forward that makes no difference.

[Tachikaze]

Do you have instructions for this ESC? I am concerned about the motor that you have in it, if memory serves me I think that that is rated for nothing bigger than a 540 motor. That will not give you your current problem, but it would heat up and burn out the ESC.
Things to look at, what is the transmitter that is being used? Do you have the trim pots on the transmitter set to neutral?
If you get a slow speed and then fast speed while trying to go forward I am thinking the following:
1) Is the motor too big, is it drawing too much from the speed control that you are actually getting slow where there should be 50% and full where it should be 100% out put? Take a smaller motor ( 400-540) and connect it to the out put leads from the ESC without altering anything else. If you get variable speed with the other motor, then there is an incompatability with the motor/ESC set up.
2) Is the ESC used? I have had two car ESC's fail on me where I had partial control forward and only full speed in reverse. This is very common ( well not really common, but happens when you burn out a relay on the reverse settings of a ESC that utilizes a relay for forward to reverse), when you have a ESC that utilizes a relay to change from forward to reverse. The relay is a little black box, usually setting next to the voltage regularotors ( mosfets). It should make a "click" when you shift from forward to reverse. If you have one of these, check to see if there is power through it utilizing a voltmeter. It should produce a constant out put voltage in either forward or reverse.
These are my two most obvious answers.

[Umi_Ryuzuki]

Another possiblity is that some ESC have a brake function.
If the brake is set too far back, or not at the neutral postion, then
the ESC will go from forward to neutral, to brake. to full reverse

[waterboat]

Hi,
I'm really trying to get instructions for this speed control fromGWS so far I haven't had any luck, I am going to send them an email to see if they can send some.
It says on the control suitable for motors from 400 to 850 so my 600 would seem to be within those limits.
It works perfect in forward its just that in reverse the stick goes all the down to the bottom then you get full speed in reverse.
some friends say that doesn't really matter as reverse is only normally used as a brake or to pull out of trouble.

[Steve Watkin]

The performance you describe is normal. This is a budget s/c and the
reverse performance is all or nothing.

SW

"waterboat" <waterboat.vzfqw@rcgroups.com> wrote in message
news:waterboat.vzfqw@rcgroups.com...
>
> Hi Everyone,
> This is my first attempt:
>
> I have a question about a GWS Speed control I bought recently call a "
> Navigator" F112.
> My Question is that having connected this I find that I only have a
> slow to fast control on the Forward montion, where as I only have Full
> speed of nothing in reverse, is this right or is there a problem
> somewhere.
>
>
> --
> waterboat
> --------------------------------------------------------------------------
---------
> Posted from the RCGroups.com Discussion Forums.
> Visit us at http://www.rcgroups.com <------- Win free R/C Gear!
> View this thread at rcgroups.com:
http://www.rcgroups.com/forums/showthread.php?threadid=163543
>

[waterboat]

Hi,
Many Moons later I had this problem which the advice taught me well.
Some where along the way the boat I had with this unit got old and the speed controller mentioned in this forum was cut out by one of my friends,
I now have a use for this Controller and can not remember which wires went where.
Is there any one out there who could help;
I have two wires joined together Pink & Cream and two other wires Blue & Red
which ones are the motor ?
Any help would really help me out.

[cklee1]

In my boat, Pink and Green to Battery pack, Blue and Orange to Motor.