Specifications

RailCorp Engineering Manual — Signals — Equipment Manual
Cerberus Level Crossing Monitor Field Equipment Manual TMG E1261
© RailCorp Page 53 of 89
Issued August 2012 UNCONTROLLED WHEN PRINTED Version 2.1
These problems are then diagnosed as per the other fault diagnosis sections.
4.3 Faults Detected during Maintenance
4.3.1 Monitor does not report a status change
Check that the monitor is operational.
Check it is configured to dial-up on status change.
Check the modem cable.
Check the modem configuration.
Check the modem.
Check phone line.
Re-configure the modem.
4.3.2 Changes are not appearing in the log
Check inputs fuse.
Check input optoisolator negative connection.
Check cables from the input optoisolator to the back of the monitor unit.
4.3.3 Lamp Learn does not complete within 40 seconds
Another symptom of lamp learn not completing is that Led 3 on the SCADA card stays
ON and the board has to be manually reset.
Check the flasher cable from Main Box Input port 4 to the SSF ZK and CSF ZK is
correctly installed.
Check that the SSF ZK and the CSF ZK are correctly installed and operating correctly.
Check that the XR input is operating correctly.
Check that the SS_LIGHT_ZK and the CS_LIGHT_ZK inputs are operating correctly.
These inputs are for the Emergency switches and should be ON when the lights are
operational.
4.3.4 Lamp Learn rejects the results
An example of lamp learn rejecting the results is as follows:
Run crossing for a minimum of 40 seconds to complete a lamp learn.
Start lamps now...
LAMP OFFSETS
Lamp Channel 2 SS_LAMPS Flasher UP Offset = 1.55 Accepted
Lamp Channel 2 SS_LAMPS Flasher DN Offset = 0.55 Accepted
Lamp Channel 4 CS_LAMPS Flasher UP Offset = -0.45 Accepted