Jump to content
 

Disconnect track


broadbent
 Share

Recommended Posts

I have DCC and I also have motorised points with built in polarity switching.

 

I would like to make a section of rail just before the frog to become dead if the point is set against the other way.

I presume I could use power to the frog and check which side the power is and use some sort of relay to switch on or off power.

What is the easiest/cheapest way of doing this please?

 

Thanks

Link to post
Share on other sites

Dutch master I hope you dont mind me recycling your drawing, if you see any flaws in my rehash then please let me know

 

I have shown the point in each position & I hope this will make it a bit easier for Broadbent

 

I have changed the colours to show the polarity of each wire & the rail it is connected to & removed all wiring & insulated rail joints that aren't necessary

 

The rails beyond the insulated sections will need feeds

 

The rail shown in green has no power connected to it

 

Both switches are part of the Tortoise

 

post-28417-0-71127000-1505431696_thumb.jpg

 

John

 

 

Edit

 Thanks Dagworth for the Craftsmanship/Clever But the credit for the drawing should go to Dutch Master, all I did was colour in his drawing.

Edited by John ks
Link to post
Share on other sites

So the second switch, if it is to be automatic will be a separate micro-switch operated by the point?

 

Basically Yes

 

If you use Tortoise Slow-motion point motors then they already have the 2 sets on C/O contacts(switches), other makes of slow-motion point motors may or may not have the 2 internal switches

 

If you are using Peco or similar point motors then the micro SW(as well as the accessory switch) will be necessary unless you can mount 2 accessory switches on one point motor( I believe Peco may make an accessory switch that is a DPDT micro Switch

 

John 

Link to post
Share on other sites

  • RMweb Gold

Bear in mind this method will only work if all your trains are configured with a single loco at the front of the train.  DMUs and EMUs, for example, may have the motor coach at the rear, likewise with any push-pull trains.  Plus with a double-headed train the first loco will stop but the second will try to keep going (= lots of wheel spin!). 

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...