2013年7月17日星期三

Elevator motor - Elevator Parts


AC variable speed system applications in the elevator
Currently DC door and other door many problems, mainly reflected in the installation and commissioning difficulties, low efficiency, poor stability door operation quality aspects. Particularly in the face of a variety of knife gate, the gate width and the gate change in weight is large, there are often noisy door switch, and so on does not run smoothly, very difficult to reach a desired operating curve, the elevator can not achieve satisfactory The operational requirements. To make the door easy installation, nuclear Oda introduced various changes to adapt to the door controller intelligent products. Following is a brief description of its electrical system features:
The system elevator motor rotor magnetic pole position of the permanent magnet is mounted on the elevator motor shaft by magnetic rotary encoder obtained. Permanent magnet synchronous elevator motor using closed-loop vector control, the elevator motor magnetic pole position of the permanent magnet rotor mounted on the elevator motor shaft by the magnetic encoder obtained. Magnetic encoder with Hall element and a signal processing technology, not only improves reliability, but also to achieve program control, with a small (only Ф20mm × 5mm), good stability, high precision control and high resolution characteristics.
Door control system using TI's elevator motor control DSP2407 chip, because the chip integrates all the required elevator motor control peripheral interface circuit including PWM modulation circuits, analog / digital conversion circuit, the encoder interface and communication circuitry, system integration and reliability is greatly improved. Its inverter using vector control, designed to join the induction elevator motor, both the synchronous elevator motor speed, but also supports asynchronous elevator motor speed. Serial communication converter is a door to OTIS Elevator transformation products, it is applied in the control cabinet control 300VF and 300VFE elevator door machine. String type converter is also a communication front and back doors with door converter serial communication an ancillary products, it and the serial communication door converter together to complete the through-door control. Free debugging features intelligent management and remote monitoring capabilities for supporting the elevator door and transformation provides a wealth of resources.
To sum up, the elevator door control system using permanent magnet synchronous elevator motor system has obvious advantages in improving system performance while effectively reducing system footprint for Keti, bed ladder, housing ladder, ladder and other tourism kind of ladder. Currently, nuclear Oda door already has integrated features [MS1], in the elevator applications can match mutual adjustment, according to user need to build a variety of solutions.

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