Abstract: The introduction sets up the elevator door elevator system of special frequency converter in the application of technology,glue stick discusses the basic principles of automatic elevator door.
Keywords: elevator door machine specific frequency converter.
1 Introduction.
Elevator high-rise buildings, public buildings and transportation by industrial and mining enterprises an indispensable tool. Elevator door is the elevator system access. Automatic elevator door safety performance is stable and accurate evaluation of the elevator system operation functions and levels by elevator key technical indicators.glue gun Chinese national standard GB7588-1995 "elevator manufacturing and installation of the safety norms" peremptory norms, including the elevator door elevator system, including the manufacture and installation quality. Elevator door drive using the installation control system of large quantities of an important modern building automation technology.
Two machine system.
Is used to control the elevator door drive lift landing door and car door opening and closing movements of the mechanical and electrical integration of the servo system. For an elevator, the door number = landing door (floor) Number +1 (car door).
Door system driven by electric motor and electric control system. Widespread use of automatic doors with the motor as the driving force, through the gear box and drive the car door open for institutions to do the opening and closing movement. V-belt drive from the two-stage reduction gear reducer, the second level is the deceleration of the crank pulley wheel, the car driven through the connecting rod and rocker about two doors movement along the crank wheel, rotate 180 degrees counterclockwise, so make two doors simultaneously open or closed. Elevator car door and landing door door points in two parts. Door motor car doors, place switch, door lock switches, safety optoelectronics, landing door lock switch on electrical signals, driving in the car door open and close the next.
Advanced door systems use variable frequency door with rotary encoders and other components of motion control systems. AC induction motor drive inverter control door opener. Controller uses the PLC control with communication technology, control technology for the elevator upgrade wisdom and provide a vast space.
3 sets of door control drive system.
The traditional way is electrically controlled variable frequency gate drive controller structure. Delta features for the elevator door, the door has developed a machine for VFD004M21W-D system, specific frequency converter sets of door elevator door based on the characteristics of specialized manufacturing, mainly used in automatic doors and a variety of automatic elevator door control applications. Delta Door dedicated system integration of integrated drive controller, as shown in picture 1. VFD004M21W-D for elevator manufacturers and building owners to save cost and installation space.