Model railroad power supply circuit diagram,model railway oo gauge layouts 00,nilo thomas the train table videos,ho scale train for sale 2014 - Try Out

admin 11.09.2015

SL-600-24-1-25 DC Regulated Switching Power Supply for Any Scale Trains - Analog DC or MTS DCC use.
Use a a 25 amp train throttle (speed control) - use as a Train Throttle to set your garden railroad speed by changing the track voltage from 5 to 24 volts and turn track power ON and OFF. Use to set the Maximum voltage on your track to protect smoke generators, lights or just to limit the maximum speed of your locos.
Note you can increase the amperage to 50, 75 or 100 amps by adding additional power supplies which are designed to share the load automatically using the parallel feature built into each power supply. Digital Command Control (DCC) equipment does not come in fully self-contained packages which either plug into something or something plugs into them. On permanent layouts this is usually not a problem, but on NTRAK layouts which are set up, taken down, set up again, etc., a better method is required.
While the number of possible configurations are endless, essentially two or three basic configurations will handle almost all NTRAK layout requirements. A switchable SoundTraxx Program Track Booster (PTB) is installed as part of the decoder programming connections. This unit is used primarily as a Program Station for programming mobile decoders at NTRAK train shows. The switchable Program Track Booster provides the extra power needed to program sound decoders. This is the North Raleigh Model Railroad Club's original Command Station board when it was equipped with Cinch-Jones connectors. The power supply and PM4 are fastened to the board with screws; the DCS200 is secured with Velcro.
This is the North Raleigh Model Railroad Club's prime Command Station board updated for Powerpole connectors, and with Track Polarity toggle switches. Other than the electronic components (power supply, DCC equipment, connectors), most items can be purchased at a home improvement center such as Lowe's or The Home Depot, and some are available from Radio Shack. The board can be painted or left natural, however the connector board will need to be coated with gloss paint or varnish so that the designation decals, if used, will adhere. Equivalent power supplies sold by Tony's Train Exchange (TTX) and Springhaven Shops are not recommended for use on NTRAK layouts, especially at Train Shows unless mounted in a properly-grounded metal cabinet. For safety and protection of equipment there should always be a fuse or cicruit breaker between the power supply and the DCC device being powered.
Cutting and Assembling the Base and Track Connector BoardBegin by cutting the wood to size. After the sawing of the wood is finished, be sure to sand all surfaces, edges and ends smooth so there won't be any chance of getting a sliver or being cut by rough edges.
Next will be cutting holes in the track connector board for the Cinch-Jones jacks and, optionally, for a Universal Panel (UP) or UR91.
Alternatively, using a computer, a printer and some blank decal paper, reasonably good-looking designations can be created for the various Cinch-Jones sockets on the Track Connector Board.
Create the decals and print them on the decal paper (use white background decal paper if you painted the board a dark color) using a laser printer (ink-jet printer ink will run when the decal is placed in water unless protected by a coat of varnish). Mounting the Digitrax PS515 Power SupplyIf you are using the Digitrax PS515 Power Supply, it will be fastened to the base with Velcro. Mounting a Loy's Toys Power SupplyIf you are using the Loy's Toys metal housing for your power supply, be sure to mark the spots on the base where you must drill holes for the screws to fasten the metal case to the base before you assemble the power supply. Once the optional Radio Shack transformer is mounted to the case, you can wire the power supply according to the instructions provided with the kit. The 120VAC terminals of the Radio Shack transformer(s) should be connected to the 120VAC terminals of the main power transformer.
When finished wiring the Radio Shack transformer check to be very sure that none of the wiring terminals can touch the metal power supply case. At this point you can test the operation of the power supply, but be very careful as you do it since 120VAC is present on open terminals. Put the second half of the power supply metal case in place and secure the top only with four (4) of the sheet metal screws provided with the kit.
Now tighten all the screws until the power supply case is held snugly against the base, but not so tight as to warp the case.
At this point you should have the power supply secured to the mounting base in the left rear corner, as shown in the photograph at right.


Do not plug the PM4 circuit card into the connector until all wiring and other work is complete on the mounting board. Mounting the Track Connector PanelBegin by inserting the Cinch-Jones S-302-AB chassis sockets in the appropriate holes in the connector board such that the longer slot is vertical and to the right.
The Track Connector Panel is screwed to the side of the mounting board using either two or three #6 x 1" wood screws placed in the holes drilled previously. Connecting the Components on the Mounting BoardIn wiring the components together on the mounting board attention will be paid to the use of proper sized wire gauge for the current to be carried, and to neatness of the finished product.
Carefully route the low voltage cable down and along the right side of the power supply case being careful to ensure there are no kinks and the cable is kept flat. Connect the other end of this cable to the PM42 connector as described in the PM4 instructions. Connect the PM42 power cable (which should be just beside the Loy's Toys power supply case, to the appropriate PM42 connector terminals. For each of the four PM42 track outputs connect wires, 18-gauge or larger, from the PM4 connector Rail A and Rail B terminals to a track socket.
Plug the PM4 circuit card into the 44-pin connector, with the component side of the card away from the power supply (assuming you oriented the 44-pin connector on the board with the xx pins towards the front of the board. Connecting to the LayoutThe DCC equipment units will be connected to the NTRAK layout using a cable with NTRAK power connectors at each end — a plug at the equipment end, and both plug and socket at the layout end.
In assembling the cable as described below, the ribbed wire of the 16-gauge lamp cord will always be connected to the wide pin of the Cinch-Jones connector. Repeat for the other 1–foot length of lamp cord, except use the S-302-CCT cable socket.
This cable is used to power the layout by plugging the single plug into the Track jack on the DCC equipment board's track connector panel, and connecting the other ends to the existing NTRAK cables for the track to be powered. If you have a mounting board with a PM4 and four track connectors, you can join together 4 cables made per the preceding directions into a single cable using tie wraps.
Bicolor LED Testing device to check track polarity — build per instructions in box below. Shorting Cinch-Jones plug to test PM4 power sections — build per instructions in second box below. Solder the resistor to the wide terminal lug of the plug, and the other lead to the other terminal on the plug.
This Test device will indicate the presence or absence of a DCC signal at the socket (orange color) and the polarity of an analog output (red or green). This test device is used to check the PM4 power sections at the track sockets and compares it to the LED indicators on the PM4 circuit card.
This Test device will be used to ensure that each section of the PM4 shuts down as it should when its output is shorted, and that other sections of the PM4 remain unaffected and continue to supply power to the output of those sections. Connect a DT-series throttle to one of the LocoNet ports on the Command Station (if you are testing a pure Booster you need to have a separate Command Station connected to the Booster-under-test by means of a LocoNet cable). Using the LED Test device constructed earlier (above), plug it into each of the PM4 track panel connectors in sequence.
Pushing the reversing button on the throttle should cause all the LEDs to change to the opposite color. If the LED color varies between connectors on the track panel board, check your wiring to ensure that the wire from Rail A on the Booster goes, either direct or through the PM4, as appropriate, to the wide terminal on the Cinch-Jones socket. Test the programming function by connecting a programming track to the programming track connector, and programming a test locomotive. The various logos and heralds shown here are the property of their respective organizations.
The Azatrax infrared train detectors are designed to be easy and simple to use, yet versatile and flexible. The train detector circuits may be set up with the sensing elements mounted above the layout surface so that they look across the track, or for reflective sensing, with the sensing elements embedded in the track roadbed. Where two or more wires are connected to one screw terminal, tightly twist the bare ends of the wires together before inserting them in the terminal block.
Route detector wires (including power supply wires) away from DCC power and control bus wiring.
When wired as 'reflective mode,' the relay contact will close when the infrared light beam is sensed by the detector (normally open contact).


When wired as 'across-the-track mode,' the relay contact will open when the infrared light is sensed (normally closed contact). To improve sensing at close range, such as with N scale, and to reduce false sensing of structures or other objects above the track, install the sensing elements angled toward each other. Jim Reising uses MRD1 detectors to detect trains on hidden staging tracks on his magnificent N scale model railroad empire, the New Oakville Sub.
He took these photos as he installed the detectors in reflective mode using angled installation. When wired as 'across-the-track mode,' the relay contact will close when the infrared light beam is blocked (normally open contact).
When wired as 'reflective mode,' the relay contact will open when the infrared light beam is blocked (normally closed contact). Interrupt mode works best when the infrared LED and phototransistor look across the track (or multiple tracks) at an angle.
If the light source is an incandescent bulb, change it to fluorescent (fluorescents put out much less infrared). Double coverage with two sensors: When used in across-track sensing, one Azatrax train detector circuit can be wired to two sensor pairs.
Ed Reutling took the following two photos of interrupt-mode train detector installation on his O scale model railroad. The MRD1 detector can switch power to electrically isolated track sections when a train arrives at a given location. To automatically protect trains at crossing tracks, see How to Avoid Collisions at Track Crossings.
The detector consists of a small circuit board and two sensing elements: an infrared LED light source (IrLED) and a phototransistor that senses the infrared light that is produced by the IrLED. This is fine for trains in motion and for signaling to other devices that a train has arrived.
If detector wiring must cross DCC wiring, have the cables cross at right angles as much as practical. Infrared LED (left) and phototransistor (right) are angled toward each other at 45 degrees.
This avoids flickering caused by the gaps between cars and reduces the chance of not detecting a parked train.
Sensing elements may be as far apart as 18 inches or more, but alignment becomes more critical as the distance is increased. If this happens, the detector will indicate that the infrared light beam is blocked even when the path is clear. Ed prefers to keep all his wiring on the top side of the layout, running wires through the expanded foam base material. Infrared LED is just beyond the circuit board, photo transistor is in the bushes at top right. Mount the IrLED and phototransistor at the location where you want the train to trigger the power cutoff. But if a train is parked and a gap between cars happens to be over the sensor, the detector may not sense the train and thereby give a false 'clear' indication. The lines should cross above the center of the track at a height approximately equal to the bottom of typical rolling stock. Wire the detector and an auxiliary relay according to the how to automatically stop trains page.
Be sure the sensors are below the tops of the ties, and that no light can pass directly from the IrLED to the phototransistor.
An easier solution that often works just as well is to push the pointed end of a hobby knife blade into the roadbed between the LED and phototransistor.



Model cars queensland 500
Model railway layout videos youtube videos
  • SYRAX, 11.09.2015 at 21:29:45
    These days it is created as a semi-annual, 28-page or much out of your difficult earned pals although playing a single.
  • Elnur_Nakam, 11.09.2015 at 13:35:10
    Great costs with several world wide are.
  • NikoTini, 11.09.2015 at 18:29:58
    That the 1980s and numerous parents do sell days the.
  • 032, 11.09.2015 at 14:41:35
    Installing DCC decoders in my N Scale locomotives in 1993 also, I should throw out the caveat, I have.