High efficiency helical gears are adopted for the hoisting unit. This achieves smooth driving and energy-saving operation. In addition, speed control with a high response speed based on a microcomputer, high-efficiency vector control to exert exciting current control fit for the necessary motor torque, and other fine control in consideration of the condition can improve the comfortableness and realize energy-saving operation. Elevator that may be called the face of the building. Rejuvenation of buildings can be attained with the newest design suitable for the image of each building.
