Design RoomElevatorsHydraulicIntroduction

Hydraulic Passenger Elevators

		Computerized Series with Data Network System and AI-21 Supervisory System
		Computerized Hydraulic Elevators - Reliable and Flexible Operation Our series of hydraulic passenger elevators features the integrated use of microprocessors, the Data Network System and the AI-21 Supervisory System. Passengers' comfort and convenience are improved and building superintendents enjoy wider flexibility.

		Major Advantages
		This series incorporates the latest technologies with low power-consumption components to achieve even more reliability and flexibility. The integrated power unit utilizes a unique space-saving design, with the control panel now placed directly beside the hydraulic-fluid reservoir.

		Data Network System
		Strategically placed microprocessor modules connected via a serial transmission line ensure flexible control and enhanced efficiency. Each module is designed for practical thought processing, greatly improving the 'human-elevator interface.' Diagnostic programs are shared throughout the system, and backup systems provide more reliability and passenger safety.

		AI-21 Supervisory System
		This system utilizes artificial intelligence and has been designed especially for elevator groups of two to four cars. Applying a `knowledge database' of the Expert System and fuzzy-logic technology, the AI-21 system's optimum service realizes full passenger satisfaction.

		VVVF-Controlled Doors
		VVVF inverters control elevator doors with precision. Door movements are more efficient and more sensitive than previous systems.

		Operation Features and Designs
		A wide range of standard features and options, and an abundant design menu further enhance the appeal of this series. Simply choose from the spectrum of styles, finishes, colors, materials and display fixtures to complement your building environment.

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