The elevator training system design in accordance with the actual lift, complete function. Using the most common lift structure, design for the six tier structure, a total of 3 units, each can be run independently, can be networked. The main material of the elevator is made of transparent organic glass, can see clearly the internal structure of the elevator and the elevator operation process of each action, the internal structure is clear at a glance. Its structure and the actual elevator is exactly the same, and with the actual elevator all the features.
The electric control system of the elevator adopts the field bus control technology to realize the DP bus network control, the AC frequency conversion speed regulation adopts the drive control, the composition and function of the hardware structure and the function of the elevator is exactly the same as the actual elevator. With automatic flat layer, open the door automatically closed, called staircase layer selection button switch and an indicator light, outbound ladder layer selection button switch and an indicator light, lift the car and the car door switch can be independently controlled, the car door and elevator with automatic synchronous motor function, have closed to prevent clamping function and overweight alarm function, car lights independent control function. The lifting speed can be adjusted, and the operation is stable, and the lifting state and the synchronous display function of the current floor can be adjusted. Elevator in the six floor range can be directly up and down, elevator safety operation and protection of the elevator emergency stop, slow, slow down, lighting, fan and other functions. It has the characteristics of reliable performance, simple operation, low energy consumption and easy teaching.
1, the machine part comprises a traction: traction motor, reducer, brake, traction wheel, rotary encoder;
2, control cabinet part: the total power supply, control power supply, SIEMENS PLC programmable controller, inverter, wiring board and other equipment;
3, the shaft part: including the guide rail, the weight of the device, the buffer, the speed limiter wire rope tensioning device, limit switch, flat layer sensor, accompanying cable, etc.;
4, hall door: including the hall door, call button box, floor display device, etc.;
5 and a car part: including the car, car door and touch panel, speed switch, speed pull rod device, safety gear, guide boots, door machine, open switch position and closed in place of a switch, a flat layer of sensing device, car lighting, fans, etc..
Three, elevator mechanical system function
1 over speed safety protection system
When the elevator accident, car speed or speed down (broken as a wire rope, car top pulley detachment, traction machine worm gear failure, motor speed down too high). At this time, governor will emergency braking, through safety cables and linkage, driven by action of a pair of safety tongs, the car card on the guide rail and can not fall down, effectively protect the personal and equipment safety.
2 car, the reuse of spring buffer device
Buffer is the limit position of the elevator safety device, when the elevator due to failure, causing the car squatting bottom or top (limit switch protection failure), car or on heavy bombardment spring buffer, buffer absorption by the elevator energy, so that the car or the heavy security slow down until the stop.
3 door safety contact plate protection
On the edge of the door of the car, a safety touch panel is provided. When the door in the closing process, contact safety contact plate and passengers or obstacles by safety contact plate connected with the connecting rod, touch is installed in the car door on the actions of the microswitch, make the door to open, to avoid accidents.
4 upper and lower limit and limit switch
The upper and lower ends of the elevator shaft is provided with a limit switch and a limit switch to protect the car from exceeding the range. If the upper limit or the lower limit is exceeded, the motor stops automatically and is not working.
5 hall door automatic closing device
The door of the elevator door is opened and closed, which is realized by means of a door blade mounted on the door of the elevator. Each layer door is provided with a door lock. After the door is closed, the door lock is engaged with the mechanical locking hook, and the elevator can start operation.
6 door interlock switch:
When all the doors are closed, the elevator can be lifted, and if the door is open, the elevator is not running.
7 terminal limit switch safety protection system
A terminal limit switch is installed at the top of the elevator shaft and the bottom layer. When the elevator is out of control, the car has a top or bottom of the car, the terminal limit switch moves, the alarm signal is sent out and the control circuit is cut off, so that the car stops running.
8 power cut protection system
When the elevator rises or falls in the course of operation, if a sudden power outage, the elevator will automatically stop running, keep in place. When the incoming call is automatically dropped to a layer, the car door automatically opens.
Four, PLC control system requirements
Using the current most advanced SIEMENS S7-200PLC, plus expansion module and networking module, the composition of the field bus PPI network.
Five, touch screen PLC network communication monitoring system requirements
1, elevator group control training device by three sets of complete with independent operation function of the sixth floor of station simulation teaching elevator components, through the field bus communication networks are connected, disconnected or set for independent operation can be used as three sets of six independent layer station PLC simulation teaching elevator use. Elevator group function mainly includes: the conventional group, energy-saving group and peak group three patterns, which peak group and divided into peak uplink and down peak and midday service. Each function module includes: priority scheduling control, special service, parking control, "long waiting time" call control, running status monitoring. Students can clearly see the various states in the operation of the elevator on the touch screen interface, including the operation status of the elevator, the position of the car floor, etc.
2, requires a software interface
(1) total system interface
(2) elevator running status monitoring interface
(3) the conventional group settings interface
(4) energy saving group setting interface
(5) the uplink peak setting interface
(6) the downstream peak setting interface
(7) midday service setting interface
3, the main functions of the software interface
(1) the elevator running status monitoring: the function can monitor main and auxiliary ladder group running status and fault alarm state, and a cage door, elevator running direction, elevator palanquin box position, priority scheduling of elevator, elevator response outbound call and overall outbound task set.
(2) the conventional group: it takes the conventional parallel operation mode, on this basis can set start the elevator give priority to respond to the call, "a long time waiting call control, parking control, special floor and area setting.
(3) energy saving group: it uses the priority to start the elevator to respond to the call strategy and parking control function, can set the special floor and area, so that the floor area to get faster response speed.
(4) peak group: it uses a call biased approach, so that a certain type of call to obtain a shorter response time than the original. It includes:
Uplink peak: the most high elevator response to the downstream along the ladder, the low priority scheduling to the base station scheduling strategy, so that the elevator scheduling bias in response to the call of the uplink to ignore the downstream call.
Peak downlink and uplink peak instead. In the model the low elevator uplink response of cis to block ladder, high lift priority scheduling to the high base station, the elevator scheduling tend to respond to down call is ignored in uplink call.
Midday service: in this mode the "long waiting call control compensation is a call position according to the original strategy mode, waiting for a long time in starting a call in the position of priority scheduling, so as to shorten the waiting time.
