A pictorial diagram would acquit yourself more detail of the creature appearance, whereas a wiring diagram uses a more symbolic notation to highlight interconnections exceeding being appearance.
A wiring diagram is often used to troubleshoot problems and to create sure that every the links have been made and that whatever is present. Architectural wiring diagrams work the approximate locations and interconnections of receptacles, lighting, and permanent electrical facilities in a building.
Interconnecting wire routes may be shown approximately, where particular receptacles or fixtures must be upon a common circuit. Wiring diagrams use all right symbols for wiring devices, usually stand-in from those used upon schematic diagrams. The electrical symbols not lonesome sham where something is to be installed, but after that what type of device is brute installed.
For example, a surface ceiling vivacious is shown by one symbol, a recessed ceiling lively has a alternative symbol, and a surface fluorescent roomy has substitute symbol. To learn more, view our Privacy Policy. To browse Academia. Log in with Facebook Log in with Google.
Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link. Need an account? Click here to sign up. Download Free PDF. Elevator Control System Electrical Knowhow. Jehan Zeb. A short summary of this paper. Safety system. Control system. I explained the elevator car components in this prevouis topic, and I explained the Hoistway and its components in the topic "Basic Elevator Components - Part Two".
Exce Voltage D Guide for electrical design engineers 8 nos. To minimize travel time. Called if no one is using it. When trip Interface complete, programmed to return to a home landing. Ligthing design of an Office Siemens Volta CalcuLux Software - Part Four Note: the Traffic management systems which combine visual monitoring, interactive command control, and traffic analysis to ensure that the elevators are running properly will be discussed in another course for planning and design of elevators traffic management systems.
Locating o D- System controls. This sensor is usually placed on the car itself and Perform Conductor Ampacity reads the position by counting the number of holes in the guide rail as they pass by in the photo-electric Calculations Using NEC Section sensor or in the case of the magnetic sensor, the number of magnetic pulses. Electrical Loa B- Buttons B. There are two Hall buttons on each floor — one for up, another for down, except on the top floor where there is only down and on the bottom floor where there is only up.
The controller interacts with these buttons by receiving press and release signals indicating the requested direction and floor number. Consequently, each cab has 6 floor request buttons labeled 1 through 6 that passengers can use to direct the elevator cabs to the floor that they would like to go to.
These buttons are located on a button panel on the interior of each elevator cab. The controller interacts with these buttons by receiving pressed signals indicating the desired floor number and elevator cab which they were pressed from.
A passenger can press this button to open the elevator doors or keep pressing it to keep them open, but only when the elevator cab is stopped at a floor. Some elevator systems also have a close door button, but this one does not.
The controller interacts with this button by receiving a signal when it is pressed and when it is released. Both of these signals include the cab from which they came from. A passenger can press this button to stop the elevator no matter where it is in a shaft. The controller interacts with this button by receiving a signal from it that indicates that it was pressed, as well as the cab that it came from. A passenger can press this button to sound a bell to alert people outside of the elevator shaft that someone is trapped inside the elevator cab in case of a malfunction.
The controller interacts with this button by receiving a signal from it that indicates that it was pressed. Passengers register their destination floor through these registration devices at the lobby instead of in the elevator. The registration device will display the elevator that has been assigned for transporting the passenger.
As the passenger has already registered the desired destination floor, there is no need to input the destination floor in the elevator. It is used in place of or in conjunction with a pushbutton to restrict access to a floor. Keypads and card readers are also available.
Examples for these keys are as follows: Fireman's service, phase II key switch. An inspector's switch, which places the elevator in inspection mode this may be situated on top of the elevator. The door should stay open while parked on a floor. This mode may be used for temporarily transporting goods. Attendant service mode switch. D- System Controls System controls are used to turn the elevator system on or off, system controls are only accessible from an elevator control room.
They would typically be used quite infrequently — perhaps the system would be turned on early in the morning and turned off late at night, or turned off at the start of holidays and turned on once the next term begins.
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