Reply to "Circuit for constant to momentary relay for insulated rail operation"

George SOGR Forum Member

Oman posted:
George S posted:
I got one side working. So, great progress!
George
Glad to hear. Even though it's working, it would be a good idea to add diodes across the relay coils. This will slow the turn off time of the relays.

Thank you for the suggestion. I don't think it is required. Something about the 12070 strongly completes the closure of the switch. There is not much chance of the switch fouling. I tried pushing the point the opposite direction while a car was on the insulated rail section and the relay engaged the switch machine almost immediately. Of more concern might be the relay staying on too long. For example, if a screw got caught in the switch preventing closure of the switch, the relay would stay engaged and continue sending power to the 12010. You can hear the switch machine rattling in that case, so I think I could react. I am not too worried about it. The LGB components are pretty robust.

George

12/15/198:58 AM

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