Wavetronix VDR24 Radar User Manual

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Setting Up Lanes, Zones, and Channels

VDR24 Radar Detection System, Rev. 1.0

Verify that the VDR24 and the associated radar revert to a failsafe state (all detection zones and

health indicate red) and any connection of the health circuit to railroad equipment properly

shows the same state.
8.5.3. Testing with a Test Vehicle
It is also important and recommended that the entire system be tested simulating actual

operation. To do so it is recommended that a test vehicle be used as follows.
8.5.3.1. Test Exit Gate Control, Queued Vehicle
Observing necessary safety criteria, position a test vehicle in the crossing just beyond the

entrance gate and manually activate the crossing warning system by opening the XR circuit.

Observe that the associated exit gate for that lane stays in a raised position while the exit gate

for the clear lane descends. Then move the test vehicle forward to clear the crossing island and

verify that the exit gate associated with the temporarily occupied lane now descends. Repeat for

all other lanes and zones.
8.5.3.2. Test Exit Gate Control U-Turning Vehicle
Observing necessary safety criteria, position a test vehicle in the crossing just beyond the

entrance gate and manually activate the crossing warning system by opening the XR circuit.

Observe that the associated exit gate for that lane stays in a raised position while the exit gate

for the clear lane descends. Then execute a U-turn within the crossing island and verify that the

exit gate in the opposite lane also ascends to provide an exit path. Move the test vehicle forward

to completely clear the crossing island and verify that all exit gates now descend. Repeat for all

other lanes and zones.
8.5.4. Back Up Configuration Settings and Values
Once testing is complete, it is advisable to back up all the settings onto a maintenance

computer in case setting need to be replicated and restored into in a replacement radar sensor.

For backup and restore instructions see the following section, Support, Maintenance, and

Troubleshooting.