qualityfujisd

need to be defined. Because the china car elevator manufacturers door lock relay X36 is not closed, the elevator cannot run. The floor signal generation and elimination module mainly reads the floor information by the PLC's comparison instruction and addition and subtraction instructions and stores the memory signal in the corresponding intermediate relay until the floor changes and displays the position of the floor with a seven-segment digital tube.0, according to the requirements of the program [3],

contrast In the input and output allocation table of the PLC in the program design, give the corresponding input signals and observe whether there are expected outputs. Figure 3 Elevator floor position display decoding ladder diagram Ladder diagram simulation of elevator operation process The software simulation to study the elevator operation process is to use Mitsubishi PLC's simulation debugging software GXDeveloper7. The input signal X is set artificially according to the operating law of the elevator, and a corresponding output will be in the output signal Y. X34 is an upper limit travel switch.

The program ladder diagram is shown in Figure 3. The simulation results are shown in Figure 4 (the code with yellow shaded I / O in the simulation results in Figure 4 is represented by a small square). This kind of debugging is the easiest to find some potential problems that are not easy to find at first [4, 5]. In the simulation results, when X is a yellow shade, it indicates an input action, that is, the corresponding input indicator in the PLC is on; when Y is a yellow shade, it indicates that the elevator has an output signal, that is, the output indicator in the PLC is on.

The data register D0 is the number of floors during the operation of the elevator. It is installed on the sixth floor (top floor). Take one of the links as an example to introduce below. When the elevator runs to the first floor, D0 is set to '1'.Elevator control system software can be roughly divided into: elevator door opening and closing and protection and fault display module, floor signal generation and elimination and digital tube display module, outbound signal generation and elimination and display module, car interior signal generation and elimination and

If a landing door is not closed tightly, the elevator will stop running. How can these risks be minimized? 1. There are many operating parts of the elevator, as many floors as there are call buttons. 3. 6. 2. Please wait patiently. ⑤ Do not change direction suddenly when driving; if necessary, stop the car first and then start the direction change. Follow the safe operating rules for elevator maintenance, safety rules for elevator maintenance workers, and safe operating rules for elevator operators. ③ It is strictly forbidden to use the inspection speed as normal driving when the hall and car are open.

When the elevator is running, a sudden out-of-control phenomenon occurs. In case the car moves at this time, the consequences are unthinkable; in addition, don't jump around in the moving car, and don't press the button. 4. Like any means of transportation, elevators inevitably bring certain risks while saving people time and energy. If you do n’t press the call button and the landing door is wide open, you must not go in with your head full of boredom. Source: CUHK Disclaimer: Part of the information on this site comes from the Internet, so this site does not completely guarantee the accuracy and timeliness of the information. At this time, passengers may be injured by falling into the hoistway or being cut.

If the passenger opens the Elevator Floors Manufacturers door in comedy mode, then a tragedy may occur; do not move too slowly when passengers enter and exit the elevator, and do not step on the floor and the car for a long time. You must take a closer look at it: the car in front or the abyss; The back door is still closed. ④ Advise passengers not to lean on the car door. In the course of riding the elevator, passengers may be injured due to weightlessness, overweight and impact caused by abnormal acceleration (deceleration) speed. In short, the elevator is a very safe means of transportation

00m ^ 2, and other buildings should not be less than 10m ^ 2. The capacity of the drainage well shall not be less than 2.00m ^ 2.00m3, and the drainage capacity of the drainage pump shall not be less than 1oL / s. Other buildings should not be less than 6. (12) When arranging fire elevators in high-rise buildings, the convenience of firefighters should be considered, and it should be arranged in combination with evacuation stairwells.ooh. (8) There should be a special telephone in the fire elevator car, and there should be a control button for firefighters on the first floor.

When opening the door on the partition wall, a Class A fire door shall be provided.(1) There should be a front room in the fire elevator room, and its area: the residential building should not be less than 4. (11) Fire elevators can be used with passenger elevators or working elevators, but they should meet the above requirements. (10) Waterproof measures shall be taken for power and control cables and wires. On the first floor, there should be a direct sunlight to the outside or a passage with a length not house elevator Suppliers exceeding 30m to the outside..50m ^ 2. (5)

The fire elevator shaft, machine room and other adjacent elevator shafts and machine rooms shall be separated by a partition wall with a fire resistance limit of not less than F2. (7)

Non-combustible materials shall be used for the interior decoration of the fire elevator car. When using the front room with the smoke-proof staircase, its area: residential building It should not be less than 6. Drainage facilities shall be provided at the bottom of the fire elevator shaft. (4) The load capacity of fire elevator should not be less than 800kg. (2)

The front room of the fire-fighting elevator room should be set against the external wall. (6) The driving speed of the fire elevator shall be calculated and determined according to the running time from the first floor to the top floor not exceeding 60s. (9) Water blocking facilities should be provided at the front door of the fire elevator room. (3) The door of the front room of the fire elevator room shall be a Class B fire door or a fire shutter with stagnation function

When necessary, laid-offs are not Elevator Landing Doors Suppliers. And should obey the command of this installation leading group. 6. It is strictly forbidden for anyone to bypass the professional driver and direct blindly. For the replacement of spare parts in X, the main engine parts, and the power supply package, any 'hidden danger exists' indicated in the 'Notice' must be shut down and inspected until the rectification is implemented and re-inspected to meet the safety technical requirements before the machine can be tested. Operators must hold a certificate to work, lock off at work, non-operators are strictly prohibited from turning on and off. And those who pass the pre-post assessment must have a formal 'vocational and technical training certificate' and 'tower crane professional and technical qualification certificate'.

For households between 270 and 270 households, there should be no less than 3 elevators, one of which must have the function of a fire elevator. 8. V. The number of residential floors is above 12 floors and below 18 floors. Elevator quality When purchasing a house, you must pay attention to choosing an enterprise that can trust the elevator quality. 7.

There should be no less than two elevators, one of which must have the function of a fire elevator; pure residential functional floors are above 19 floors and below 33 floors, and the total number of households served is 150. The choice of elevator room floor must fully consider the comfort level after check-in.

Second, residential density and viewing are very important.. The key is to make yourself comfortable and satisfied. Two or more households are symmetrically arranged on the first floor, so there will be south-facing rooms and north-facing rooms, and even small rooms with only east-west windows, plus Some indoor partition walls above are cast-in-place concrete, which cannot be opened up and it is not easy to change the layout of the apartment. The quality and speed of the elevators are also important. Number of elevators Pay attention to the total number of households and the number of elevators in the entire building.

In actual work, construction engineering designers have designed fire elevators in accordance with the above requirements. Even if some engineering designers do not design fire elevators in accordance with the requirements of the Code, the construction review personnel of the public security fire supervision agency will also comply with the requirements of the Code. It added a fire elevator.

Function and use method of fire elevator
(1) How to determine which elevator is a fire elevator in a fire? There are several elevators in a high-rise building, and the fire elevator is basically used with passenger and cargo elevators (usually carrying passengers or goods, when entering the fire protection state, it has a fire protection function) ), How to determine which elevator is a fire elevator? Its main appearance features include the following aspects:

1. The fire elevator has a front room. The area of ​​the front room of the independent fire elevator is: the area of ​​the front room of the residential building is greater than 4.5 square meters; the area of ​​the front room of the public building and high-rise factory (storage) building is larger than 6 square meters. When the front room of the fire elevator elevator and the smoke-proof staircase are shared, the area is: the area of ​​the front room for residential buildings is greater than 6 square meters, and the area of ​​the front room for public buildings and high-rise factory (treasury) buildings is larger than 10 square meters.

2. Class B fire doors or fire roller shutters with stagnation function are installed in the front room of the fire elevator.
3. There is Elevator Ceiling Company in the fire elevator car.
4. An appropriate operation button for firefighters is provided at the appropriate position on the first floor elevator door. The operation buttons are generally protected by a glass sheet, and red words such as "for fire protection" are provided at appropriate positions.
5. When the normal power is cut off, the lighting in the non-fire elevator is out of power, but there is still lighting in the fire elevator.
6. There is an indoor fire hydrant in the front room of the fire elevator.