The CHA100 Series 4-Quadrant Cabinet Inverter, using PWM controlled IGBT rectification technology, completes bi-directional control of rectification and energy feedback, bringing the power factor close to 1 and achieving true four-quadrant operation. The main circuit uses a unit module structural design for convenient system maintenance, and through the unit module parallel connection creates a inverter with different power grades.

Technical Features
1. The rectifier/feedback units use a sine wave pattern to automatically return regenerated electric energy to the electrical network, making them "greener" and more energy efficient than the traditional brake unit + brake resistance method;
2. The grid side electric current harmonics are small, and the fundamental wave power factor is close to 1 (full capacity);
3. Excellent closed-loop vector performance, capable of achieving zero-speed 200% torque output;
4. The structure of the rectifier and inverter power units are identical, simplifying the system and allowing for convenient maintenance;
5. The rectifier and inverter use completely independent control plans, making it easy to achieve a common DC bus;
6. Designed for application in the lifting industry, logic control when power on, brake control, pre-excitation, over-speed protection, starting pre-torque compensation, and other functions ensure safe and reliable use in the lifting industry.
7. Supporting Profibus-DP, Modbus, and Ethernet communication protocols simultaneously;
8. The master-slave control function satisfies the electric power equilibrium and speed synchronization requirements of multi-motor drives;
9. The second motor control and switching function facilitates system control and reduces costs;
10. Three speed control modes: Without PG vector control (SVC), with PG vector control (VC), and V/F control method; Rich peripheral interface;
11. System and unit module double protection, power-on sequence control, gate control, and configuration pre-fault status message automatic storage function enable quick diagnosis and easy troubleshooting.

Applications
1. Shore container cranes (STS), Rail-mounted container Gantry Cranes (RMG), shipbuilding machines, wagon tippler, stacker and reclaimer machines, and a variety of other types of port machinery;
2. Large tonnage (over 40 tons) bridge cranes, Gantry cranes, and other kinds of lifting machinery;
3. Multi-motor drive steel rolling mill, blast furnace winch, and other metallurgy machinery;
4. Multi-motor drive paper-making and carton machinery;
5. Mine hoists, belt conveyers, and other mining machinery;
6. Centrifuge, pour washer, and other food and pharmaceutical machinery;
7. Centrifugal casting machine, large scale press, and other metal processing machinery.