The double-controlled and transparent elevator is currently teaching international teaching equipment industry, high-tech equipment. The sets of equipment with AC inverter and PLC programming switch volume and digital dual-mode control, and set up the circuit in the elevator, electrical, frequency, PLC, mechanical failures and other common 48 for students real hands-on exercises. Complete equipment design scientific and rational, transparent and intuitive, is teaching equipment Industrial building a major breakthrough in the field of innovation. (Technical indicators) an input power: AC380v6 (three-phase five-wire) 50Hz 2. Rated current: 2. 5A 3. Ambient temperature: -5 ℃ ~ 40 ℃ 4. Relative humidity: [90% (25 ℃) 5 Dimension: 980 * 830 * 32006. Inverters: Fr-E540-0. 4kw 7. Control Systems: PLC / PC 8. Equipment weight: 600kg