Skip to main content

Replies sorted oldest to newest

Try this, I just use surplus 12V relays for this circuit, the ones I have are reclaimed from old control boards.  You can size the capacitor for the delay you'd like to have before the relay drops out.  The 22uh choke is for DCS compatibility so it won't affect MTH DCS operation.  I pick a relay primarily to limit the inrush current to the relay, for the 25ma coils on my relays here, I have a 100 ohm resistor.  I power it from track power, though you can power it from aux power if you desire, just connect the aux power to the Center Track connection.  The sense track is the insulated track, and the Outside Track & Signal Common is just a tie point for the ground returns.

Track Presence Relay Module

Attachments

Images (1)
  • Track Presence Relay Module

Add Reply

Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Ste 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×