Wavetronix VDR24 Radar - Manual (Page 58)

Setting Up Lanes, Zones, and Channels
58 VDR24 Radar Detection System, Rev 1.0
8.4.2. Set Zone Delay and Extend Values
Once a zone’s location and boundaries are established there are additional parameters that
should be set to optimize performance. These include Delay and Extend parameters, which are
accessed by clicking on the Zn (where n = 1 to 16) control on the bottom of the SSM-Rail
screen.
8.4.2.1. Setting the Delay Parameter
The Delay parameter is the time that a qualified vehicle must
be present within a detection zone for a detection event to
occur. This value is generally set at .1 or .2 seconds to
provide adequate immunity from spurious movement within
the detection zones. Set the Delay time to .2 seconds unless
advised otherwise by Island Radar engineering and support.
8.4.2.2. Setting the Extend Parameter
The Extend parameter sets a minimum output pulse time for a
detection event. Unless advised otherwise by Island Radar
engineering and support, this setting may be left at 0 seconds.
8.4.3. Assign Zones to Output Channels
The VDR24 provides four isolated output Channels that
connect to railroad equipment (controllers or relay logic
circuitry). Zones that have been established must be assigned
to one or more output channels. To do so, click on the LED
indicator icon at the bottom of the SSM-Rail screen. This will
present a matrix where zones that are configured may be
assigned and correlated to any of eight output Channels. For
the VDR24 however, only four output channels are provided.
Click on the necessary LED icons to establish the desired
Zone-Channel relationships.
8.4.4. Channel Settings
Clicking on the C
N
(where N =1 to 8) icon permits other
Channel level parameters to be configured. This is an
alternate area to assign Delay and Extend settings similar to
what was done directly with each Zone. Unless advised
otherwise by Island radar engineering and support, these
setting should not be configured and should be left at 0.
8.4.5. Save Zone and Channel Settings
When all zones have been configured and associated
parameters established, click the disk icon to store the
configuration in the radar sensor itself.
FFiigguurree 4411 -- SSeettttiinngg tthhee
ZZoonnee''ss D Deellaayy aanndd EExxtteenndd
PPaarraam meetteerrss
FFiigguurree 4422 -- M Maappppiinngg oorr
A Assssiiggnniinngg aa ZZoonnee ttoo aann
O Ouuttppuutt C Chhaannnneell