Specifications
Governor's
Park
Condominium 777 \Vashington Street
Denver,
CO
without
jars
or
bumps. Stopping upon operation
of
emergency stop switch shall be
rapid but not violent.
a.
Vertical Acceleration: Maximum 4 ft. (1220 mm)
per
second squared.
Maximum
jerk
8
ft.
(2440 mm)
per
second cubed.
b. Horizontal Acceleration: Maximum 10 mg peak-to-peak measured at full
speed for full travel in both directions.
2. Full Speed Riding: Free from vibration and sway.
3.
Vibration: Sound isolate machines and motor drives from beams and building struc-
ture to prevent objectionable noise and vibration transmission to occupied building
spaces.
b.
Airborne Noise: Maximum allowed acoustical output level of:
1.
75 dba measured in machine room.
2. 60 dba measured in elevator cars during all sequences
of
operation.
3.45
dba measured in elevator lobbies.
2.03 MICROPROCESSOR
DISPATCH
OPERATIONCONTROLLER
A.
A solid-state programmable Microprocessor dispatch controller shall
be
provided. The eleva-
tors shall operate without attendants as a group and
be
capable
of
balancing service and con-
tinuing operation with one
or
more cars removed from the system.
B.
The
microprocessor shall continuously accept external data from passenger registration
of
hall
and car calls and from each elevator indicating present operating condition.
Data
shall be ana-
lyzed and weighed based on elevator operating status, i.e., elevator in
or
out
of
service, bypass,
at lobby in Next
Car
mode, direction
of
travel and position
of
each elevator, condition
of
car
doors, i.e., open, closed, opening
or
closing" condition
of
each elevator, i.e., accelerating, full
speed, decelerating, number
of
stops due to
car
calls, number
of
stops due
to
previously as-
signed hall calls, coincident
car
calls, system condition, i.e.,
Up
Peak
or
Down Peak, and pre-
dictive
car
and hall call assignments. The microprocessor programming shall include velocity /
distance formulae to calculate the time it will take for each elevator to respond to newly regis-
tered demands and compare response time for each
car
to the newly registered demand and as-
sign the
car
which can respond to the demand in the shortest time period. The microprocessor
program shall include the ability to continuously monitor elevator and demand status and
change assignments when changing conditions warrant.
C.
The
elevators shall operate from buttons located at each floor and in each car. Registration
of
calls
by
momentary pressure on buttons shall cause the cars to respond to passenger demand.
Cars shall slow down and stop automatically at landings corresponding to calls registered on
car
or
hall buttons. These stops shall
be
made in the natural
order
of
floors for each direction
of
travel irrespective
of
the order in which the calls were registered, except that only one car
shall stop in response to any particular hall call.
The
system shall continuously review and
modify all hall call assignments to insure that the closest elevator
in
real time to a hall call is
assigned to that call. Simultaneous to the initiation
of
the slow down
of
a
car
for a hall call,
Elevator Consulting
and
Design,
Inc.
15