Z-Stuff DZ-1000 wiring for non-derailing operations

Jeffery:

If I understand you correctly you want to know how to wire DZ-1000's for non-derail. You need to isolate the inside ground rail of the turnout then connect a wire from the rail straight to the appropriate terminal on the DZ-1000 (straight or curve). I usually isolate the track going into the turnout to give the turnout time to switch before the locomotive hits it. You only need do so on the one end where the track connects to other track.
You can isolate the tracks going into the curve or straight portion of the turnout and connect the wires to their appropriate terminal on the DZ-1000

Joe

Jeffrey,

Here is the sketch Joe is talking about from Ross. look at the details on the bottom of the page.

Go the ZStuff web and select Applications. All the info is there.

Unless I missed it, I don't see instructions there on how to wire the DZ-1000s for non-derailing with the Lionel ASC connection and the DZ-1002s not on the layout.

Jeffrey, so all you have is the Atlas switch, the DZ-1000, and the push buttons? Correct?

No, he doesn't have the buttons, that's the DZ-1002.  Besides the push buttons the 1002 also provides circuitry to keep the leds on between switch throws. Other wise they just wink at you when you fire the switch.

Follow the wiring from the switch. The power wire is at the switch, the green and yellow are opposite paths to ground. So ground is going down to the 1002 and the buttons determine the path to the ground wire. So the ASC needs to replace the functionality of the 1002 with a relay.

For non-derailing, you are just providing another path to ground by grounding the green or yellow. This isolated rail switch is wired in parallel with the ASC so that either one can trigger the switch.

I'm not sure I was clear. It should operate the switch without the DZ-1002, you just don't get leds on all the time.

Dan,

Even though I had trains as a boy (60 years ago), and have recently re-engaged myself in the hobby, I'm not really fully clear with your post. The last 2 sentences starting with "For non-derailing ..." are a bit confusing. I don't know what you mean when you say "you are just providing another path to ground by grounding the green or yellow". What does that mean? Also, in the next sentence "This isolated rail switch is wired in parallel with the ASC" - what isolated rail? What do you mean wired in parallel?

Sorry - I'm not familiar enough with the technology to fully understand.

Jeffrey,

What is going on is the 12-14 vac is applied (through diodes) to the small dc motor  in the dz- 1000 and it has a small limit switch inside that stops it and sets it to go the other way.  The circuit is completed through the pushbuttons (sorry did not realize the PB set was called a 1002 ) that  do no more than connect to common or ground so the small motor in the DZ 1000 has power.  For non derailing (look at the bottom sketch and R L to switch machine), you connect those wires (you may need to add them) from these isolated rail  parts of the switch to the R and L wires in the upper sketch.  When the wheels of a loco hit the isolated rails they connect to ground and act just like the 1002 pushbuttons.  Does this make sense? Others may chime in with a better explanation or detailed sketch.

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Ok, thanks for the feedback, I'll try to see if we can find the point where you begin to lose understanding. Hopefully, I didn't screw up the link below.

DX-1000 & IC Controls ASC3000

No non-derail for the moment, let's just discuss the switch connections. I'll try to be more careful with my terminology. Can you see from that diagram where the two wires from the voltage source are? One is labeled COMM and one is labeled 12 - 20 vac. Just cover the DZ-1002 on the right side with your hand. You don't have the stuff on the right past those black dots so just ignore it.

You're going to wire one side of your power supply to the middle wire on the DZ-1000 switch machine on the left. You're going to wire the other wire from your power supply to the COMM on the ASC. Then you connect the switch wire labeled R to either 1 or 2 on the ACS, and connect the switch wire labeled L to the last connection, 2 or 1.

How the switch works is that there is always voltage at the middle wire, but the circuit is open because there is no connection back to COMM, the other side of the power supply. The path from the switch back to the COMM is through either the left wire or the right wire, depending on how you operate the ASC. The two relay connections on the ASC, 1 and 2 that connect with R and L,  will provide the connection to COMM when you select straight or diverge. Then a path is established between the two power supply wires, 12 - 20 vac and COMM, and current flows, the switch throws and every body happy.

How are you doing to this point?

Well I've already connected the switch machine to the power supply and the ASC. Everything runs fine.

What I want to do is now set up the non-derailing option. The diagrams and instructions I'm seeing are unclear. It looks like 3 additional wires need to come from the track. One goes to the L terminal on the DZ-1000. The other goes to the R terminal on the DZ-1000. So it appears as though those 2 wires need to be spliced into the green and yellow wires that come from the R and L terminals to the ASC. Correct?  It looks like a third connection comes from the common rail and it is connected to the COM terminal. I'm not sure if that's to the power supply ground or to the ASC COMM terminal.

Maybe these diagrams will help.  Here is the non-derail schematic.

Here is the schematic for controlling the DZ-1000 with the ASC.  Just remove the DZ-1002 from diagram.

Hope these helped.

@JEFFREY RUCKGABER 050219 posted:

Well I've already connected the switch machine to the power supply and the ASC. Everything runs fine.

What I want to do is now set up the non-derailing option. The diagrams and instructions I'm seeing are unclear. It looks like 3 additional wires need to come from the track. One goes to the L terminal on the DZ-1000. The other goes to the R terminal on the DZ-1000. So it appears as though those 2 wires need to be spliced into the green and yellow wires that come from the R and L terminals to the ASC. Correct?  It looks like a third connection comes from the common rail and it is connected to the COM terminal. I'm not sure if that's to the power supply ground or to the ASC COMM terminal.

Great! Sounds like you're about there. You are correct, the diagram is showing non-derail for each path out of the switch. One wire for each direction and spliced to the wires going to the ASC.

If your power supplies are all in phase you can connect (they really should be) all of the commons together back at your power center, then you won't need the third connection out at the switch. Remember, this is AC, there's not really a ground.

Ok - the following is how I think things should be done. Please correct where you see necessary? I've attached a hand drawn picture on how I think things should be hooked up.

All 8 DZ-1000s are connected to the 2 ASCs I have for my layout.

The DZ-1000s yellow and green wires are attached to the appropriate terminals on the ASCs. The red wires from the DZ-1000s are spliced together and then that single wire goes to the A (hot) terminal on my transformer.

The COMM terminals from the ASCs are spliced together and then that single wire goes to the U (ground) terminal on my transformer.

Now for the non-derail feature.

Each of my 8 switches are spliced into the yellow and green leads going into the ASC - as shown in the hand drawn picture. The rails from where the wires that are spliced into the yellow and green wires are cut - to create the insulated track.  Separate leads from the common rail going into each switch are then spliced together and that wire can be spliced into the wire that is going to the U (ground) terminal on my transformer.