Edge Sensor Installation Tips - Nice HySecurity SlideSmart DC Series Installation And Programming Manual

EDGE SENSOR INSTALLATION TIPS

Refer to Figure 72 to help plan the most appropriate
placement of the edge sensors being installed.
„ If edge sensors are used sliding gates, one or
more contact sensors (edge sensors) must be
located at the leading edge, trailing edge and
post-mounted both inside and outside of the
sliding gate.
• Three-sided detectors are ideal for slide
gates.
• If the clearance of the gate is 6" (15cm) or
more above the road, then an edge sensor
must be mounted on the bottom edge.
• If gate is sliding open to a wall with less than
16" (41cm) of clearance, mount an edge sensor
to wall that aligns with gate in open position.
• Always route leads from edge sensors to
gate operator so that they are protected from
physical damage.
• Underwriters Laboratories requires that any
contact sensor used as an external entrapment
protection device, must be laboratory tested
to, and recognized to the UL 325 Standard.
„ To monitor edge sensors, there must be a
terminating resistor in the embedded edge. This
resistor is typically 8.2K or 10K and always has a
small current draw to confirm that it is installed.
„ HySecurity gate operators must see a NC
contact for monitoring purposes, therefore any
edge sensor with a terminating resistor will need
an interfacing device to convert the resistor
output into a NC contact.
• Types of devices that will convert the resistor
output to NC output include the Hy2NC, and
the WEL-200.
• Hy2NC enables the Edge Sensor to be hard
wired to the board.
• The WEL-200 is both a wireless transmitter/
receiver kits that communicates the state of the
Edge Sensor wirelessly from the gate mounted
transmitter to the operator mounted receiver.
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ACCESSORY CONNECTIONS
„ Hard-wired edge sensor adaptors (like Hy2NC)
have inputs for up to two resistor terminated
edges and up to two NC contact outputs.
• HySecurity suggests the use of hard-wired
edge sensor adaptors with an edge mounted to
lead fence post to protect draw-in entrapment
zone when the gate is running.
„ Wireless transmitters are always monitoring
for presence of resistor terminated edge(s)
connected to it. Status of edge is then
continuously communicated back to receiver
which determines when to switch NC contact to
NO and tell board edge is tripped or missing.
• Receiver can only give a NC (edge not tripped)
signal or a NO (edge tripped or missing) signal
to control board.
• If edge is tripped, missing, or resistor value
is too low, transmitter will communicate this
information to receiver which will indicate this
to control board as a tripped edge (NC contact
opens).
• Additionally, if communication between
transmitter and receiver is ever lost or corrupted,
due to too much other RF "noise" in area, then
receiver will indicate to control board that
edge is tripped, even if edge is present and
functioning normally with transmitter.
„ When selecting a wireless edge as one of
the external entrapment sensors, be aware of
the environment around it and know that RF
interference from outside sources can drastically
diminish range and performance of wireless
device.
• Airports, police stations, fire departments,
hospitals, and other sites with a lot of radio
traffic have shown to have a lot of RF noise in
frequencies that most transmitter/receiver kits
function.
• Install transmitter in a way that it is in direct
line of site with receiver's antenna throughout
gate motion.
• Limit distance between transmitter(s) and
receiver(s) to what is specified by manufacturer,
and be aware that range may be greatly
diminished when operating in a noisy RF
environment.