With main components of imported high quality frequency transducer, contactors, circuit breakers, leadingin reactors, filters, PLC programmable controller or industrial personal computer and other equipment, design and manufacture of three-phase AC motor starting, speed regulating , protection, control and monitoring systems. Marine inverter control system combines the most advanced technology and control functions, it can meet the application requirements of most of today’s Marine Electric Drive, such as: lifting, transportation, lifting,ventilation, air conditioning, pumping, compression machinery, special machinery and so on, especially suitablefor application systems with high requirements for the motor speed regulating, steady speed, torque adjustment,constant torque, constant tension, etc.

　　The control mode of the Inverter is pulse-width modulation, so as to drive the motor. The pulse-width modulation provides adjustable current to the stator, so as to achieve excellent speed control results. At this time, the motor can be regarded as a speed source, whose speed is only decided by the input frequency of the stator, so ad to realize acceleration and deceleration speed adjustment. It has a very wide speed range and can compensate the resistance slow down.

　　Depending on the application requirements, it can be equipped with PLC programmable controller or IPC PLC adopts free communications with RS485 interface, so as to realize intelligent ditital control of inverters.

　　Inverter gains excellent control characteristics from space vector estimation and optimized inverter trigger pulse mode for decreasing motor loss and switch loss. It has powerful computing features and rapid response capability., good dynamic performance, high power factor, low harmonic content and good speed governing performance.

Features:

● available of English, French, German, Spanish and other languages to achieve human-machine dialogue;

● strong communication skills and computer input interface for intelligent control systems;

● Super terminal programming ability, can create a number of additional features;

● high efficiency, full load up to 98% rated;

● power factor in the speed control region up to 0.95;

● improve the grid power factor;

● easy adjusting motor speed, and can achieve constant speed control;

● can be in constant voltage or constant power transmission control;

● can be in constant torque, constant tension transmission control;

● Motor soft-start, without rush current;

● optional direction of motor rotation;

● High overload torque start, starting torque up to 180% rated;

● instantaneous torque is 110% of the motor rated torque, duration 60 seconds;

● Low noise motor operation;

● compact and silent frequency counters

● allows two motors with different rated frequency use the same inverter to start in turn.