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Turnout Direction Wiring

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  • Turnout Direction Wiring

    I have seven Tortoise switch machines wired to their respective DPDT, center-off toggle switches that operate seven Atlas Snap Switch turnouts. Each toggle switch has a green LED to indicate its turnout's main line routing and a red LED to indicate the turnout's diverging route.

    All the turnouts - except for turnout #4 - operate as they should: green for the main line (with the toggle switch in the "up" position) and red for the diverging route (toggle switch in the "down" position).

    Turnout #4, however, turns to the unintended direction: to the diverging route when the green LED is on and the toggle switch is in the "up" position and to main line routing when the red LED is on and the toggle switch in the "down" position. The green and red LEDs correspond correctly to their respective toggle switch's "up" and "down" positions, but the turnout then switches to the unintended, opposite direction.

    I've triple checked all the wiring - and even switched the power wires going from the toggle switch to the cab - to no avail. All the wiring on #4 looks to be connected properly and to be identical to the other six DPDT toggles.

    Obviously, I've overlooked something or hooked up some wire or other incorrectly. Suggestions, thoughts? A solution is even better!

    [?]

  • #2
    Try switching the wires at position 1 and 8 on the Tortoise.

    Jim
    Take the red pill

    Comment


    • #3
      Jim,

      Reversing the polarity of the wires was the first thing I thought of doing. To be sure I didn't overlook something simple, I again re-re-checked (four times now) the #4 Tortoise-to-toggle switch wiring. I also referred to the Tortoise wiring schematic and followed those two wires by hand from the Tortoise to the toggle switch - and back. It's wired exactly per the directions, as well as identically to the other six, well-behaved Tortoises.

      To address Mark's point, some of my Tortoises are indeed oriented differently than others under the table. However, my point of reference for following the wires from the #4 Tortoise's terminal #1 and terminal #8 to the toggle switch was the same: terminal #1 is on the left and terminal #8 is on the right, facing the side of the Tortoise with the spring wire. So those wires seem to be properly connected.

      Tortoise #4 is also wired to the toggle switch and the LEDs per the schematic, just like its other six brethern: the wire from Tortoise terminal #1 (on the left) is soldered to a blue wire that's connected to the long terminal of the green LED and to the short terminal of the red LED. And the wire from Tortoise terminal #8 (on the right) is soldered to the middle left terminal of the toggle switch, looking at the toggle switch from the underside. All the corresponding wires on the other six Tortoises are hooked up the same.

      It's possible with multiple wires involved here that I missed something. So when the sun comes up tomorrow, I'll have another look-see. Stay tuned.

      Other thoughts welcome!

      Comment


      • #4
        Swap the wires at the Tortoise, I'd bet a cup of coffee on it.

        Jim
        Take the red pill

        Comment


        • #5
          I agree with Jim. That's got to be it.
          Mark

          Comment


          • #6
            quote:


            Originally posted by BurleyJim


            Try switching the wires at position 1 and 8 on the Tortoise.

            By doing this, it will change the direction of the switch only, and have the green and red indication LED's operate as you want them to, with the toggle in the proper up and down position as well.

            Jim


            As Jim has already stated, you should simply be able to just switch your tortoise #1 blue wire to the #8 tortoise position, and switch your tortoise #8 wire coming from your toggle switch to your tortoise #1 position. You may be just over thinking this situation, and overlooking the simple switching of the wires at the tortoise #1 and #8 terminals.




            Louis L&R Western Railroad
            Pacific Northwest Logging in the East Coast

            Comment


            • #7
              Gentlemen,

              Your collective suggestion to switch the wires on the Tortoise's #1 and #8 terminals does seem the logical way to reverse the polarity, even though it's contrary to how it's designed to work. That would mean that that particular Tortoise was wired incorrectly internally. I'll give it a shot.

              Jim, there may be a cupa Joe in it for you!

              Comment


              • #8
                Or...the magnet was placed in the motor incorrectly or when it was magnetized it was set in the magnetizer incorrectly or you just have bad luck. Have fun and remember, Rosanna Rosanadanna said "it alway's something".

                Jim
                Take the red pill

                Comment


                • #9
                  Well, gents I switched the two wires on the Tortoise as suggested. However, that didn't bring the desired results. Other suggestions? Other possibilities? A bad Tortoise perhaps?

                  Comment


                  • #10
                    Oppps! Correction. I looked at turnout #4 from too far away and couldn't see the direction in which it turned well enough. The "surgery" did indeed do the trick! "Up" is still green and aligns with the main line of the turnout, while "down" remains red and aligns with the diverging route.

                    Thanks for you help, gents.

                    Comment


                    • #11
                      quote:


                      Originally posted by GNMT76


                      Oppps! Correction. I looked at turnout #4 from too far away and couldn't see the direction in which it turned well enough. The "surgery" did indeed do the trick! "Up" is still green and aligns with the main line of the turnout, while "down" remains red and aligns with the diverging route.

                      Thanks for you help, gents.


                      Just a note so you will know. This switching of the wires saved you form going under the layout and turning the tortoise a 180 degree turn.


                      Louis L&R Western Railroad
                      Pacific Northwest Logging in the East Coast

                      Comment


                      • #12
                        Jim,

                        If you find yourself in Missoula, Montana one day, the coffee's on me!

                        quote:


                        Originally posted by BurleyJim


                        Swap the wires at the Tortoise, I'd bet a cup of coffee on it.

                        Jim


                        Comment


                        • #13
                          You owe me one cup of coffee! Now you know why this forum is so good to belong to. Glad to see you got it going. Here's a little rule of thumb, start troubleshooting electrical stuff at the 'end' of the line. It'll save you a lot of time and headaches.

                          quote:


                          Originally posted by GNMT76


                          Jim,

                          Reversing the polarity of the wires was the first thing I thought of doing. To be sure I didn't overlook something simple, I again re-re-checked (four times now) the #4 Tortoise-to-toggle switch wiring.



                          You were on the right track, and then talked yourself out of it.

                          Thanks Louis for the 'assist' on this one.

                          Jim
                          Take the red pill

                          Comment


                          • #14
                            quote:


                            Originally posted by BurleyJim


                            You owe me one cup of coffee! Now you know why this forum is so good to belong to. Glad to see you got it going. Here's a little rule of thumb, start troubleshooting electrical stuff at the 'end' of the line. It'll save you a lot of time and headaches.

                            quote:


                            Originally posted by GNMT76


                            Jim,

                            Reversing the polarity of the wires was the first thing I thought of doing. To be sure I didn't overlook something simple, I again re-re-checked (four times now) the #4 Tortoise-to-toggle switch wiring.



                            You were on the right track, and then talked yourself out of it.

                            Thanks Louis for the 'assist' on this one.

                            Jim


                            Your welcome there Jim. I knew you called it right, I just thought David needed a little more support on that answer of yours, and maybe the visual. I've always been a visual to replace a thousand words.
                            David offered you a coffee, you better make it before the snow flies in Montana. That's no place to be in a few weeks.


                            Louis L&R Western Railroad
                            Pacific Northwest Logging in the East Coast

                            Comment


                            • #15
                              Louis' illustrations always help!
                              Mark

                              Comment

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