playmofire
Registered

I'm not quite as desperate as the Forum title suggests, but advice would be very much appreciated.
I am, at long last, getting round to creating a (small) permanent layout (a separate thread will be started for this).
The layout is a simple oval with two inner sidings and exit from a siding is controlled by a signal - signal at clear, train can leave, signal at stop, train stationary. I am using the LGB 50960 semaphore signal.
The instructions for wiring the signal said that by bridging the 2nd and 5th terminals in the isolating rail with a diode appropriately wired, a train could enter the siding against the signal, i.e. the signal at stop.
I wired things up like this and a test on a straight piece of track with a siding coming off it worked perfectly. Train on siding, signal at stop, train would not move when controller applied. Signal at go, controller applied, train could leave siding.
Working the other way, signal at stop, train could enter the siding from the main line and pass the signal.
However, when I came to set the signal and siding up on the oval layout, when a train was on the siding and another train was running on the oval clockwise all was well, but when I reversed the train on the oval, the train on the siding also reversed because current was passing through the diode in the isolating rail!
The electric motor controlling the point into the siding has an auxiliary switch and so I thought that if I wired this through the isolating rail in the signal in place of the diode it might solve the problem, but it didn't. I tried various ways of wiring the auxiliary switch through the signal's isolating rail but without success.
Does anyone have any experience or ideas on this, please? I know one answer would be to remove the diode and wire up the siding through an on/off switch to make it live when wanting to put a train into the siding, but an automatic system would be preferred.
I am, at long last, getting round to creating a (small) permanent layout (a separate thread will be started for this).
The layout is a simple oval with two inner sidings and exit from a siding is controlled by a signal - signal at clear, train can leave, signal at stop, train stationary. I am using the LGB 50960 semaphore signal.
The instructions for wiring the signal said that by bridging the 2nd and 5th terminals in the isolating rail with a diode appropriately wired, a train could enter the siding against the signal, i.e. the signal at stop.
I wired things up like this and a test on a straight piece of track with a siding coming off it worked perfectly. Train on siding, signal at stop, train would not move when controller applied. Signal at go, controller applied, train could leave siding.
Working the other way, signal at stop, train could enter the siding from the main line and pass the signal.
However, when I came to set the signal and siding up on the oval layout, when a train was on the siding and another train was running on the oval clockwise all was well, but when I reversed the train on the oval, the train on the siding also reversed because current was passing through the diode in the isolating rail!
The electric motor controlling the point into the siding has an auxiliary switch and so I thought that if I wired this through the isolating rail in the signal in place of the diode it might solve the problem, but it didn't. I tried various ways of wiring the auxiliary switch through the signal's isolating rail but without success.
Does anyone have any experience or ideas on this, please? I know one answer would be to remove the diode and wire up the siding through an on/off switch to make it live when wanting to put a train into the siding, but an automatic system would be preferred.