If you want to know more about related topics: Capacitor discharge units CDUs kzbin.info/www/bejne/ZpKYg6dprJaLiKMsi=mJ1TLDWox3X1RRk4 How point frogs are wired kzbin.info/www/bejne/bXWae5WLoah6ZtEsi=dfOSqTjKAReZ5lzT How solenoid point motors work kzbin.info/www/bejne/pHrHkGaiq5Z6mtEsi=gQBme1FZefW1seE4 Point indication with the point indicator kzbin.info/www/bejne/fJXJiqivhN6Yaacsi=R2pybdT7lhdvUZtN We have an informative website at www.heathcote-electronics.co.uk with online ordering.
@OOElectronics8 ай бұрын
Is there a reason you did not use 24V DPDT bistable relays? These can operate off the same switch lines as the points motors and also retain their position in the event of power loss.
@heathcote-electronics8 ай бұрын
I am sure that would work well with solenoid point motors. However I wanted the relays to be switched with a low current when used with my detectors for reverse loops. Also the bistable relays appeared to be a more expensive solution without terminal blocks or LED indication of which way the relay has switched. Actually if you take the negative from the CDU to the point switches and connect the negatives of both the 24 and 12 volt supplies you could use the same switch lines but considering there is only a very small price difference between the two types of switches I thought using a DPDT switch made the wiring simpler to understand and fault find,
@OOElectronics8 ай бұрын
That all makes perfect sense to me. I've been using the 24V bistables to overcome failures on old insulated frog points to provide the track switching. I locate the relay next the point so wiring is minimal (in length at least) and don't need the LED confirmation. @@heathcote-electronics
@heathcote-electronics8 ай бұрын
@@OOElectronics It sounds a good solution for what you want to do. With below baseboard point motors I had success by using the rod that fits in the tiebar (which extends below the point motor) to push against a micro switch mounted on a block of wood.
@OOElectronics8 ай бұрын
@@heathcote-electronics Peco do (or used to do?) plastic switches that got glued onto the bottom of their motors to do the same. I think there are still a few around on my layout. I've been using microswitches hidden on the surface to detect point position for my microprocessor controlled points and signals - a project that has grown way beyond where I thought it was going.....