old lgb 3 terminal point motors. Help required

Paul2727

Paul2727

Registered
Country flag
HELP..!
I've looked all over for the following info, but to no avail.
It's probably something everyone but me knows so don't mention.
I have acquired several LGB points with the old 1206 motor. (3 terminals.) They are of the twin solenoid type, but are the ac or dc? What voltage do the require? Is the centre White.) terminal the common? And if they are dc it it - or +? Am I correct in assuming the will require 2 momentary switches per point?
 
Solenoids will usually work on AC or DC - they buzz a bit more on AC. Classic example is the 3 wire Peco twin coil point motor (and others) used in the small scales. You can run it from the 16V AC "accessory" output of a controller, but you get a better and controlled "thump" using a Capacitor Discharge Unit which outputs DC to the motor.

Whether the LGB point motor will work on both AC or DC would depend on whether there are any built-in diodes in the circuit (I doubt it). It shouldn't matter whether the common terminal is positive or negative, but be consistent with your wiring so they're all wired the same. Most people would probably make the common to be negative.

You need either two push buttons, or a centre-biased momentary Single Pole Double Throw (SPDT) switch (toggle or rocker, whichever you prefer) often labelled (ON)-OFF-(ON)
 
Thank you all. I'm sorted now. They work fine on 12 v dc. I've tested them in tandem with 12v relays on a passing loop to cut power to the track, so only the track selected by the point receives power.
Regards.
Paul.
 
You must log in or register to reply here.
Back
Top Bottom