Chamberlain LIFTMASTER PROFESSIONAL SW470 - Manual (Page 20)

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The Sequenced Access Management System or SAMS allows the
customer more control when managing vehicular entrances to
areas such as apartment complexes, businesses and gated
communities. The basic concept of the system is that traffic is
controlled by two gates installed in tandem, a fast moving gate
such as a barrier gate operator and a slower moving more secure
or ornamental gate such as a single or pair of slide/swing gate
operator. The design of this gate system balances the demands of
speed during high traffic periods with security during low traffic
periods. Barrier gates typically have the fastest open times of the
many gate operator types and the slide or swing gates allow you
to effectively seal off the perimeter of the complex you are
planning to secure.
NOTE: Connect all entry devices to the slide or swing gate. If
using a device, such as a 7-day timer, to latch the slide or swing
gate open during high traffic times, connect the device’s N/O relay
output to the control board’s Interrupt Loop input. Once the
device activates the Interrupt Loop input, the next vehicle to
access the SAMS system will lock the gate in the open position
until the device deactivates. When the device deactivates, the
timer to close will automatically close and secure the gate.
A D J U S T M E N T
TRAFFIC
TERMINAL BLOCK
INTERRUPT LOOP INPUT AUXILIARY LIMIT SWITCH
SAMS RELAY AT J5 TERMINAL STRIP
TB5
N/0
N/0
1 (OPEN)
TB8
COM
COM
3 (COMMON)
BG770 BARRIER GATE
STREET
SAMS Conduit
Hold Open Loop
Shadow Loop
Safety Loop
Second
Master
COMPLEX
OR
PARKING LOT
SEQUENCED ACCESS MANAGEMENT SYSTEM (SAMS)
3. Once the barrier is open the vehicle may pass through the SAM
system. At this point you have two options in how you would
like to initiate the SAM systems closure. You may chose to:
a. Use a timer to close system to automatically close the
barrier gate after a preset amount of time or
b. Use a loop system to close the barrier gate after the vehicle
has passed through the SAM system.
4. Once the barrier gate is closed the slide or swing gate will
activate its internal timer to close and begin closing.
5. If another authorized vehicle accesses the SAM system before
the slide or swing begins to close the barrier will open and
allow the vehicle to pass through the SAM system.
6. If another authorized vehicle accesses the SAM system during
the slide or swing gates closing cycle the SAM system will
reopen the slide or swing gate. Once the slide or swing gate
reaches the open position the barrier will then open to allow
the vehicle to pass through the SAM system.
7. If no other authorized vehicles access the SAM system the
swing or slide gate will close followed by the barrier.
SAMS OPERATION
1. When an authorized vehicle accesses the gate system, the SAM
system responds by first opening the gate farthest from the
vehicle, the swing or slide gate.
2. Once the swing or slide gate is open, the barrier gate begins its
open cycle.
SAMS WIRING
1. Install conduit between the BG770 and the SW420 for SAMS
control wiring.
2. Run a 4-conductor cable in the conduit between the BG770
SW420.
3. Locate the SAMS relay terminals (J5) on the control board in
the SW420 and locate the auxiliary limit switch in the BG770.
4. Attach a wire from the SAMS relay terminal (J5) on the control
board to terminal 1 on the BG770 terminal strip.
5. Attach a wire from the SAMS relay terminal (J5) on the control
board to terminal 3 on the BG770 barrier gates terminal strip.
6. Attach a wire from terminal J1-5 on the control board to the
common (COM) on the auxiliary limit switch in the barrier gate.
7. Attach a wire from terminal J1-8 on the control board to the
normally open (NO) on the auxiliary limit switch.
8. Test for correct functionality of the SAM system.