Filter
Top Products
8
VEHICLE DETECTOR LOOP BLANKING FOR
SWING GATES
The inside loop for a swing gate installation must be located at least
4 feet outside of the arc of the gate. If it is not, the vehicle detector
may detect the gate as it moves over the loop and cause the gate to
reopen. If the gate is large and a single leaf, the arc usually requires
that the loop be a considerable distance from the closed gate position.
This may not be an effective position for the loop. In this case, a
“blanking” or “shadow” loop may be used.
A shadow loop detector is connected to the shadow loop terminal
(#9) and the “common” terminal (#16) of the RS4000 control panel.
Now, when the gate is in the fully open or closed position the vehicle
detector will prevent the gate from closing when a vehicle is over the
shadow loop. When the gate is opening or closing, the loop input is
disabled.
ELECTRICAL POWER REQUIREMENTS
The RS4000 is a 115 Volt AC gate operator. The AWG wire size for
the electrical service is dependant upon the distance from the
operator to the service breaker panel. Refer to Table 1 to determine
the correct wire size to use. A 15 Amp service is required for each
operator unit.
The Nominal Distance column of Table 1 is the maximum
recommended distance from the service breaker panel to the operator
for a given wire size and voltage. The values in the table are valid for
one RS4000 only. The RS4000 will operate at a voltage as low as
105 VAC as measured at the input terminals to the operator. This
should be checked as part of the installation procedure.
Class 2 low voltage wiring from external controls such as a key pad,
card reader, telephone entry device, etc. must be brought to the
RS4000 operator by a separate conduit from the 115 VAC electrical
hook up conduit. Low voltage control wires MUST NEVER be
routed in the same conduit as the HIGH VOLTAGE power wires.
SERVICE CONDUIT
For new installations the conduit for the High Voltage may be
brought to a junction box near where the RS4000 operator will be
located or it may be brought directly to the 2 x 4 handy box inside
the operator.
WIRE SIZE NOMINAL DISTANCE
#14 100 FT
#12 150 FT
#10 250 FT
#8 400 FT
#6
600 FT
#4 1000 FT
#2 1600 FT
WARNING!
AVOID ELECTROCUTION:
DO NOT ROUTE LOW VOLTAGE WIRES
IN SAME CONDUIT AS HIGH VOLTAGE
WIRES. FOLLOW ALL LOCAL
ELECTRICAL CODES OR THE
NATIONAL ELECTRICAL CODE.
B: PREPARING THE SITE
Figure 8: Service
Conduits - Bi-Parting
106509
Table 1