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Noobie with possible power issues.

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  • Noobie with possible power issues.

    I recently got a Carrera Evolution set along with a a few extra track pieces. The problem I'm having is if I'm running two cars and I slam the accelerators on both of the controllers at the same time the cars simply putt along and inch at a time. I have what ever transformer came with the basic set and I'm running basic analog 1:32 cars. I have a total out about 25ft of track. Is there anything I can do to remedy this? Add another powered track section? Get another power pack/ transformer and have one power one lane and the other one power the other?

    Any guidance would be appreciated.

  • #2
    Hi, and to SCI!
    I'm not certain whether this Thread will work best here in Tech, or possibly in the non-digital Carrera Forum; it may get moved there, if best to do that.

    No doubt somebody will have a useful answer or guidance for you shortly though; do your individual controllers/lanes/cars work OK? It almost sounds as though there's a dead short, perhaps caused by reversed polarity somewhere.

    Comment


    • #3
      The only time I have this problem is when both controllers are wide open at the same time. Both lanes work fine when the power is "rolled on" a little at a time, and only time I get the problem would be like in a "drag race" situation where both lanes get opened quickly. The set up is eventually going to be for drag racing and I'm trying to work the bugs before I spend a bunch of money on timers and such.

      Comment


      • #4
        The set comes with a power supply that is not regulated and the cars do draw a lot more power when they start up from a dead stop compared to what they use when they get rolling. It would be normal to get a 5 volt or so drop in voltage with a drag racing start, however that should not make the cars seem quite that sluggish. It does not sound to me like you have a short circuit, if that was the case the cars would be slow all of the time. Possibly there is a poor connection. Poor connections act like a resistor and resistors drop more voltage as the load goes up. An experienced troubleshooter would probably find your problem quickly, finding it over the Internet is more difficult. All of our tracks are hardwired, so I am not familiar with Carrera track hardware. I would guess that your problem is in a part of the circuit that is common to both lanes.

        Comment


        • #5
          It sounds like the overload protection of the transformer is tripping when both cars are going from a dead start at the same time. What kind of cars are you using? If you lower the magnetic downforce of each car slightly, it should solve the problem. It will also help to be sure that the track rails and the braid on each car are clean.

          Best regards,
          Brian

          Comment


          • #6
            1st off thank you for the feedback. Im very new in the hobby and am learning more and more everyday. So I truly appreciate the help.

            Im fairly sure that the problem isn't in the track itself as the problem occurs when I have any length to track installed, so I'm almost positive that its not because of a lack of juice to spot on the track.

            Im just using the standard analog cars that came with the Carrera Evolution kit that I bought. After further messing with it today on about 10ft of track I find that the problem happens when ever both lanes are at full throttle, meaning even if I have both lanes going at a certain speed the moment they both get to full throttle the problem comes up. With that being said the protection fault in the transformer makes total sense in my noob brain.

            My question is this, should I buy an 18v 1:24 scale transformer (will that be enough)? Should I buy a 2nd 14v and have each one power a separate lane? Or should I splurge and get an adjustable power supply? Im leaning towards getting a 2nd 14v for the sake of keeping the lane as close to identical as possible.

            Comment


            • #7
              If you don't mind losing a little in the handling department, than either use the plastic shims to move the magnet further away from the track rails or just use one of the traction magnets instead of two would solve the problem. If you have the newer Carrera Evolution slot cars, then you would need to take off the body to re-configure the traction magnets. The lowest downforce setting with the magnet in place would be to use the plastic shim (closest to the track), the steel shim, and then the magnet.

              Best regards,
              Brian

              Comment


              • #8
                I think just for testing purposes I would remove the mags all together. If that helps or solves the problem then the issue more than likely is the Ps. Was this a new set? You shouldn't have this sort of problem. Return?

                Dave

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                • #9
                  Yeah the set is brand new straight out of the box, the track is brand new out of the box. Ill take the mags out later tonight and re-post the result.

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                  • #10
                    My set did this as well and I run magless. I solved the issue buying a variable power supply. In my case a professor motor supply. Now no issues.

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                    • #11
                      Oh and I've also turned the volts down to 12 from the 14.8 the stock one puts out.

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                      • #12
                        I took the mags out when I got home from work this morning and no change. Im going to get another transformer and run 2 (one to each lane). Gameover how does is work with you turning the variable one down to 12v? I assume its because the variable puts out like 2-5 amps and the stock one only draws .8 amps. Also how do they run on the lower voltage? Slower, more controllable? Is it pretty consistent across the lanes car performance wise?

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                        • #13
                          Yes I turn it down to 9 Volts when my 3 year old is driving but I run it at 12 volts when I'm alone. Way more controllable. I also run No mag all the time .

                          Comment


                          • #14
                            If it's new why dont you just return it? With my stock Ps I've had no issues starting 6 1/32 cars at once. Stock of course with mags.

                            Dave

                            Comment


                            • #15
                              Its not that I can't run multiple cars even on the same lane, I can. What I can't do is run those cars at Wide Open Throttle at the same time with out tripping some type of fault within the transformer itself. After trouble shooting it down to here the only common link is the transformer, the rest is just literally wire and soldered connections. So at this point Im fairly positive that Im simply asking too much from the transformer that came with set. Im trying to draw too many amps. I got another 14v transformer on order and will re-post when I get it.

                              Comment

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