
BASIC APPLICATION GUIDELINES & PROGRAMMING
_________________________________________________________________________________________________________
5-4
SIG-00-22-02 JUNE 2022 (Revised September 2022)
Version: B.1
WARNING
A FAILURE OF THE EXIT TRACK WHEN THE STICK IS SET CAN
RESULT IN A FAILURE TO ACTIVATE THE CROSSING.
THE STICK CANCEL TIMER VALUE SHOULD BE CHOSEN TO
CANCEL THE STICK BEFORE ANOTHER TRAIN CAN APPROACH.
THE STICK CANCEL INPUT SHOULD BE USED WHERE
APPROPRIATE TO CANCEL THE STICK.
5.2.2.1 Directional Stick Logic and Stick Cancel Timer
Directional Stick Logic drives the AND 1 XR function which, when selected to an output, enables
the Crossing Assembly to activate the crossing signals on the approach of a train and
deactivate the crossing signals when the train leaves the island circuit.
5.2.2.2 Stick Cancellation Timer
A Stick Cancellation Timer is used to cancel the Directional Stick in case the approach receiver
being overridden by the Stick does not energize after the train has left its PSO circuit. The timer
begins to run time when the island circuit energizes and the Directional Stick is set as the train
departs the exit track. Therefore, the stick cancellation time is not affected by train length. A
latch prevents an intermittent island circuit from resetting the Stick Cancellation Timer. The Stick
Cancellation time range of values is from 0 to 60 minutes in 1-minute increments, with a default
setting of 15 minutes.
5.2.2.3 Typical Stick Operation and Logic
The GCE utilizes a three-circuit Directional Stick Logic for proper crossing activation and
deactivation. This functionality is only applicable when the
PSO Module Mode
is set to
Crossing
on the PSO ‘n’ Transmitter menu.
For example, the crossing location is set up and programmed as follows:
•
PSO 1 and 3 are configured as transmitters
•
PSO 2 is configured as a Crossing Module
•
The West Approach is enabled and programmed as RX1
•
The Island is enabled and programmed as ISL
•
The East Approach is enabled and programmed as RX2