Presentation is loading. Please wait.

Presentation is loading. Please wait.

PowerPoint ® Presentation Chapter 11 Elevator System Control Devices and Applications Elevator Systems Conveyance Calls Access Special Operating Modes.

Similar presentations


Presentation on theme: "PowerPoint ® Presentation Chapter 11 Elevator System Control Devices and Applications Elevator Systems Conveyance Calls Access Special Operating Modes."— Presentation transcript:

1

2 PowerPoint ® Presentation Chapter 11 Elevator System Control Devices and Applications Elevator Systems Conveyance Calls Access Special Operating Modes Elevator System Control Devices Elevator System Control Applications

3 Chapter 11 Elevator System Control Devices and Applications Conveying systems include systems to automatically transport people and/or materials between areas of a building.

4 Chapter 11 Elevator System Control Devices and Applications While passenger elevators are the most common type of elevator, other types of elevators are specifically designed for other functions.

5 Chapter 11 Elevator System Control Devices and Applications Traction elevators are raised and lowered through the elevator shaft by cables operated by electric motors.

6 Chapter 11 Elevator System Control Devices and Applications Most of the equipment needed to operate a traction elevator is located in a machine room above the elevator shaft.

7 Chapter 11 Elevator System Control Devices and Applications Machine room-less elevators use a design that reduces the size of the traction equipment enough so that it does not require a machine room.

8 Chapter 11 Elevator System Control Devices and Applications Hydraulic elevators are raised and lowered by pistons filled with fluid.

9 Chapter 11 Elevator System Control Devices and Applications Holeless elevators reconfigure the hydraulic pistons to the side of the elevator, reducing the amount of equipment space needed directly beneath the elevator shaft.

10 Chapter 11 Elevator System Control Devices and Applications The governor sheave engages the emergency brake system if the elevator falls too rapidly.

11 Chapter 11 Elevator System Control Devices and Applications When engaged, emergency elevator brakes wedge up against the rails guiding the elevator car, slowing it to a stop.

12 Chapter 11 Elevator System Control Devices and Applications When the elevator car is in the correct position, the door operating system unlocks and pulls open both the car doors and the elevator shaft doors.

13 Chapter 11 Elevator System Control Devices and Applications The elevator system can respond to signals from other building systems to add calls, control access, and change elevator operating modes.

14 Chapter 11 Elevator System Control Devices and Applications The normal operating algorithm of an elevator system determines the best sequence of stops in order to minimize passengers waiting time.

15 Chapter 11 Elevator System Control Devices and Applications Elevators can be used to control access to certain areas of a building by either controlling the access to the elevator or controlling where the elevator can stop.

16 Chapter 11 Elevator System Control Devices and Applications Some special elevator operating modes help the elevator system serve passengers more efficiently during certain periods of the day.

17 Chapter 11 Elevator System Control Devices and Applications Phase two fire service mode functions are activated by a keyswitch, typically inside the elevator car.

18 Chapter 11 Elevator System Control Devices and Applications Elevator controllers are connected to numerous elevator-specific control devices to operate the elevator system independently.

19 Chapter 11 Elevator System Control Devices and Applications Call buttons are the typical method for passengers to select their desired travel direction or floor.

20 Chapter 11 Elevator System Control Devices and Applications Telephones or similar two-way communication devices are installed inside elevator cars for emergencies.

21 Chapter 11 Elevator System Control Devices and Applications In emergency fire situations, the fire alarm control panel signals to the elevator controller to recall the elevator car(s) to a designated floor.

22 Chapter 11 Elevator System Control Devices and Applications Inputs from access control systems can be used by elevator controllers to anticipate waiting passengers and automatically call elevators to certain floors.

23 Chapter 11 Elevator System Control Devices and Applications Access control systems can be used to admit only authorized personnel to elevators serving secure building areas.

24 Chapter 11 Elevator System Control Devices and Applications When integrated with access control systems, elevators can be used to secure individual building floors by requiring authorization for certain floor calls from inside the elevator car.


Download ppt "PowerPoint ® Presentation Chapter 11 Elevator System Control Devices and Applications Elevator Systems Conveyance Calls Access Special Operating Modes."

Similar presentations


Ads by Google