Product Description Main technical features: 1) Output frequency range: 0. 00 ~ 600. 00Hz 2) Speed control mode: Sensor-less vector control (SVC), V/F control 3) Command channel mode: Operator panel, terminal and remote communication 4) Frequency setting mode: Digital keypad, analog input (current / voltage signals), remote communications, multi-step speed, PID closed loop 5) Starting torque: 150% / 0. 5Hz (SVC) 6) Carrier frequency range: 1. 0K ~ 16. 0kHz 7) Speed control accuracy: -0. 5% - 5% max. Speed (SVC) 8) Automatic voltage regulation (AVR): If the voltage of the power grid changes, the system can automatically maintain a constant output voltage 9) Torque limitation: The max. Torque can be limited to protect the inverter reliably 10) Common DC bus: Multiple inverters share the same DC bus and can implement automatic energy balance 11) Wobble frequency control: Multiple triangular wave curves, meeting the personalized requirements of the textile industry 12) Multi-functional Quick / Jog key: Can serve as a multi-functional key to meet the requirements of users for multiple applications 13) All input and output terminals are programable, for the convenience of users Reliable design: 1) Full series independent duct design: The heat sink supports installation inside or outside a cabinet (optional). The fans are convenient to replace and the inverter is simple to maintain, which greatly improves the reliability of the inverter during long-term operation in such different application environment as textile, printing and dyeing, chemical fiber, paper making, wire-drawing, and cement manufacturing 2) Wide power grid voltage design: When the input voltage of the power grid ranges from -15% to 15%, the inverter can run safely, and users does not need other handling 3) CHE series inverters above 7. 5kW are configured with built-in DC reactors which improve output power factor and the efficiency and thermal stability of the integrated equipment, effectively eliminate the influence of the higher-order harmonic on the input side upon the inverter and reduce external interferences 4) Self safety test: Upon power-on of the inverter, the system will conduct complete safety self-test of the software and hardware. The system implements safe clamping of the modification and setting of functional parameters, to revent error settings of the functional parameters 5) Powerful protection: A) Provides users with more than 30 kinds of fault protection functions, and capable of all-around protection of inverters, motors and peripherals B) Provides the function of automatic reset upon a fault, to facilitate automatic removal of conventional faults C) With built-in lightening over-current protection unit, to efficiently improve protection from lightening induction