O Double Slip

Hi Tony

From what I can remember, may work

As the blades at each end are connected and if the double slip is in its own section - it can be treated as two points overlaid on each other.
So the blades at one end set the polarity of the V at the other end. Doesn't matter if it's DC or DCC.
Both V's will need insulated joiners on both rails, and the feed can be taken from the stock rails.

If you have different sections feeding the entry roads, I'd suggest insulating all rails and using some form of switching to select incomming and outgoing power sections and operate the double slip as well. This is more of an issue for DC rather than DCC as the double slip stock rails will be connected to the bus supplies.

Hope this helps

Paul

 

Hi Tony



The rails dots circled are providing the feed wires, each pair are linked to each other and to the micro switch , and from the switch to the V
If you have a multimeter, with the power on to the track, check the voltage accross the two stock rails - should give approx 12V for DC and 15V (or greater) AC for DCC.
Now with one probe on one stock rail, and the blades set to touch the other stock rail, then move the other probe along the stock rail, blades etc right through to the V.
Note any areas where there is no voltage and check they are correctly wired up or connected to the stock rail.
If your multimeter has a continuity function (usually resistance setting and will buzz if there is a circuit). You can make sure the micro switch is connected to the correct stock rail. i.e. connect the probe on the stock rail the blades are touching, and you should get a tone if you touch the oppsite V. If no tone move the probe to the other stock rail, if it now sounds then the connections are the wrong way round. If there is still no tone check the micro switch connections, make sure the V is connected to the common terminal, and check the continuity from each terminal of the micro switch to the track.

Paul

 

Hi Tony

As Pete says any where on each of the stock rails, for DCC just connect the two bus wires. DC however can be a little more complicated, as you will need to supply the power from the appropriate track section feeds.

Paul

 

Hi Tony



Connect all red connections to Controller +ve and all Black connections to Controller -ve

The main track feeds should be wired as above - for initial testing disconnect the feed to each V at the micro switch

Use the Resistance setting on the meter.

Resistance method set the Meter to 2000K Ohms - I couldn't see if the meter had a continuity setting - shorting the two probes will cause the meter buzzer to sound
With the Power off to the layout, with the layout disconnected from the controller, and no stock on the layout, measure the resistance accross the two feed wires that were connected to the controller, it should read M ohms or out of range. Thus no shorts. If ok goto next step.

With one probe held on one of the supply wires, touch the other on to one of the stock rails - should give either a very high value (Open circuit), or Zero (short), then do the same to the other stock rail. You should have had One open circuit, and one Short. If both are open circuit, check your wiring from the supply wires through to the track feeds as you have a break somewhere..

Repeat for the other supply wire to the stock rail.

Hold one probe on to the Left hand stock rail, now check the connection to all the other black connections, the value should be Zero.
Repeat for the red connections

If all is ok then



Then with one probe on the bottom Black stock rail check that all the rails within the shaded area give a short. Check with the switch rails in both positions.

Repeat for the other half. Again all should give Zero Ohms or a short - this is where a continuity checker comes in to its own, you just listen for the buzzer you don't need to look at the meter.

Lastly if all is ok then time to check the output from the limit switches



With one probe connected to the common output of the micro switch, touch the other probe on to stock rail the switch blades are in contact with, this should be a short, if open circuit the wires on the limit switch feeds will need swapping over. If zero keep the probes in place and switch over the point blades it should go open circuit.
Test on the other stock rail then if good connect the common out to the V in the diagram.

Repeat for the other end.

Hope this helps

Paul

 

That's great to hear

Paul

 

And there was me thinking you had some new form of blender to make Frog Juice

Paul