| Reliability 
Schindler Engineers gave priority to performance and
reliability in designing Miconic A controls. Comprehensive design analysis and extensive
field testing require each component to meet stringent standards for simplicity,
efficiency and reliability.
A single control cabinet per car in the machine room houses
the supervisory, car control and motion control for each elevator. The control cabinet is
designed to be compact, efficient and completely accessible from the front. This concept
reduces inter-cabinet wiring and installation time, facilitates maintenance and promotes
space-saving machine room design.
The controller is designed specifically for electrical
noise immunity. Power components, such as line starters and power relays, are located in
the rear of the cabinet, while control boards and key interconnecting wires used by
service technicians are situated on an easily accessible swing-out door. Conductors and
wiring harnesses are routed carefully to avoid introducing electrical noise into the
system. Data link connectors and ports are designed to reduce malfunctions and protect
against electrical surges that could damage sensitive parts. The few code-required relays
used are encapsulated to resist dust contamination.
The Miconic A system is designed to bring you maximum
availability, longer system life and consistently excellent performance.
Supervisory Strategy
The Miconic A system's advanced solid state control uses
Real Time Management and powerful multiple microprocessors to analyze traffic patterns and
evaluate passenger waiting times. The system scans more than 10 times per second to locate
every call in the building, and effectively assigns cars throughout the hoistways to bring
the "right" car to answer the call. Coincident calls and consecutive corridor
calls are given special consideration to optimize the Miconic A algorithm and prevent
bunching and leap-frogging. If ridership patterns change, the Miconic A system adjusts
without reprogramming. As a result, passenger demand is served efficiently and waiting
time is reduced. |
