Attachment 1: Specifications - Metropolitan Washington Airports ...

DCA TERMINAL A IMPROVEMENTS (NEAR TERM)10 AUGUST 2012
TASK ORDER 03: LOBBY IMPROVEMENTS – PKG 4 -CURBSIDE CHECK-IN
RONALD REAGAN WASHINGTON NATIONAL AIRPORT
PROJECT DT1203
c. Line Terminus Lateral:
clear. If the “Door Obstruction” photosensor sees a bag which is
under the door, the conveyors shall advance the bag until the “Door
Obstruction” photosensor is clear, and then the conveyors shall stop
and the door shall close.
1) Line Terminus Lateral Start: After the load conveyor has been activated and
fire/security doors are fully open, each associated transport conveyor shall
be activated in a sequenced order from the downstream end of the transport
segments of the curbside line, and the visual and audible warning
subsystems shall shut off. The lateral conveyor belt shall not start,
(although the Lateral is energized), until the head end photo-eye has
blocked, and the belt shall advance the length of the bag. The lateral belt
shall stop when the head-end photoeye is no longer blocked. The bag
advance function shall not occur if the lateral is ‘full’ (see below).
2) Line Terminus Lateral Restart: Restarting the system due to stoppage from
emergency stop pushbuttons, or motor overloads shall activate the start-up
warning system sequence prior to the system restarting. Systems shall not
start up under any circumstances without activating the start-up warning
system sequence.
3) Line Terminus Lateral Stop (Auto):
a) Automatic stopping of the curbside system shall be accomplished
through a “last bag” photosensor located at the discharge end of the
input conveyor at the public area. Each time the system is started and
when a bag interrupts the photosensor beam, the timing logic shall be
reset. After a time interval sufficient to ensure that all bags in transit
on the conveyor line have reached their destination, the timing logic
shall time out and the transport conveyor shall stop and the
fire/security door shall close. The fire/security door closing function
shall be on an adjustable timer (0 to 5 minutes) in the programming of
the system.
4) Line Terminus Lateral ‘Full’: A photoeye shall be provided at the discharge
end of the lateral. When this photoeye is blocked the control system shall
no longer advance the lateral belt, and the transport function shall cascade.
The fire / security door (of the TSA space doghouse) shall remain open
while the lateral is ‘full’.
5) Line Terminus Lateral Stop (Emergency):
a) The curbside system may be stopped anytime during the normal
operation by depressing the maintained-contact emergency-stop
(E-STOP) button. E-Stop pushbutton shall be provided in every
control station containing a START/RESTART and/or JAM RESET
pushbutton. Zoning of E-Stop shut down shall be as identified herein.
BAGGAGE HANDLING EQUIPMENT 34 77 16 - 34