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Crossing Controllers

Level Crossing Controllers

The level crossing controller operates a British style automatic half barrier crossing. Two sets of lights can be controlled, each consisting of an amber and two red lights. Relay contacts (B1, B2, B3) are provided to switch a slow motion point motor or memory wire to operate the barrier. As the train approaches the amber LEDs light for a short time, after which the red lights flash alternately until the train clears the crossing. Whilst the red lights are flashing the "B1" and "B2" terminals are connected by the built-in relay.

Operation may be either manual with an on/off switch or automatic. For single line operation two IRDOT-1 or two reed switches are required, one either side of the crossing, connected to "D1" and "D2". For double track four IRDOT-1 or four reed switches are required. Detectors on one line connect to "D1" and "D2" and on the other line connect to "D3" and "D4". Trains may approach from either direction, the Level Crossing Controller will work out if the train is approaching or leaving the crossing. Terminal "Sw " is provided for manual operation by a switch. 3mm diameter LEDs are supplied fitted to the Crossing Board screw terminals, the associated resistors are built into the board. Different sized LEDs can be substituted for the supplied ones. To minimise wiring the red LEDs are fitted back to back so that only two wires are required. (The polarity at terminals RB reverses to flash each in turn).

Grade Crossing Controller

This is for crossings that only use pairs of alternately flashing red lights such as crossings in the USA and Canada. Immediately upon detecting the train the pairs of red LEDs flash. Otherwise operation is the same as described for the level crossing controller.

Grade Crossifg Controller for Faller Barrier Kit

The Grade Crossing Controller can be supplied adapted to operate Faller crossing kits. This controller gives a 3-second closure of the relay upon detecting an approaching train and a second 3-second closure of the relay as the train departs. These times are required to start the Faller motor rotating.