This page started 11/2018, updated 7/1/2019
This page contains Images and links for Video #668 Z-Stuff DZ-1012 Detector Controls 2 O-Gauge Trains On 1 Mainline”/
1. Links to the 3 Videos:
- Part 1 – Recommended Method “Delay From the Front“: https://youtu.be/LMnjJLROMQc or https://vimeo.com/300117722
. - Part 2 – Alternate Method “Release From the Rear” using DZ-1011 detector: https://youtu.be/LMSptSSnkcw or https://vimeo.com/300124648
- Note the last 18 minutes of Pt. 2 reviews some alternate methods of controlling 2 trains on the same track.
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- Note the last 18 minutes of Pt. 2 reviews some alternate methods of controlling 2 trains on the same track.
- Part 3 – Alternate Method (better than Part 2) “Release From the Rear” using DZ-1012 detector: https://youtu.be/CiwxULos5IM or https://vimeo.com/342719732
- The DZ-1012 works better than the DZ-1011 because the DZ-1012’s adjustable time delay allows more flexibility in train length.
- The note underneath Fig. 2C below, shows the 1 wire that has to be moved to change the relay from “normally closed” as used in Pt. 1, to “normally open” as used in Pt. 3.
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- There are MORE links below in Para 5 “More Related Links”.
2. Summary:
- This video #668 shows a Z-Stuff DZ-1012v Block Signal Detector and DZ-1008 Relay automatically controlling 2 O-Gauge trains on the same track (see below photo).
Two different logic methods are demonstrated:
- Part 1 of the Video demonstrates the “Delay From the Front” method — which we think is the most versatile.
- The train in front uses the “stop block” to delay a train following too closely.
- Parts 2 & 3 of the video demonstrates the “Release From the Rear” method — which has a similar logic to the “Insulated Rail” method.
- The front train is “trapped” by the stop block, and depends on the train approaching from the rear to “release” it.
3. Images:
Note: CLICKING ON any of the below images, should open them LARGER.
- The next 3 images are from Part 1 of the Video — which demonstrates the “Delay From the Front” method.
- The last image Figure 3 is from Part 2 of the video — which demonstrates the “Release From the Rear” method.
Opinions:
- The “Delay From the Front” method is probably the most versatile method.
- If you make a small test layout, you can easily experiment with both methods.
- Note you need the DZ-1012v Detector to do the “Delay From the Front” method.
- The DZ-1011 Detector can be used ONLY for the “Release From the Rear” method.
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The above drawing is for “delay from the front” as demonstrated in Pt. 1.
4. PART 3, WIRING CHANGE FOR DZ-1012:
To use the DZ-1012 for “release from rear” operation as demonstrated in Pt. 3 of the video, you need to move just 1 wire — as described below.
- (Move the white wire going to the track, from Terminal 6 (as shown above) to Terminal 4. This changes the relay from “Normally Closed” to “Normally Open”.)
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5. PART 2 OF THE VIDEO (Alternate Method)
- The below Figure 3 is from Part 2 of the video, which shows the 2nd logic method, “Release From the Rear“. (Part 3 uses the DZ-1012; see Para. 4 above.)
6. MORE RELATED LINKS FOR RELAY CONTROL OF 2 TRAINS
- The O Ga. RR Forum discussion thread for this video: https://ogrforum.ogaugerr.com/topic/video-z-stuff-dz-1012-block-detector-controls-two-o-gauge-trains-on-1-mainline
- Note Bob Walker’s post of 11/13/18 contains a copy of his Oct. 2007 article from Classic Toy Trains on hooking up a block system, using Z-Stuff DZ-1011s.
- The Toy Train Revue Web Page has diagrams for Hooking Up O Gauge Automatic Blocks: http://toytrainrevue.com/block-relay.htm , DVD that contains the excerpt shown is described at http://www.tmbv.com/How-to-Build-an-O-Gauge-Layoutbr-Beginner-Advanced/productinfo/HOW2