The Eazy Series Variable Frequency Drive system from Amtech Drives (Atlanta, GA) is designed to precisely manage the electrical current for ultra high-speed motors and spindles. It utilizes a proprietary PWM sinusoidal waveform and provides control and protection to AC induction motors in the 40 to 1875 horsepower range. The system includes a 5th-generation IGBT power inverter, a SVPWM control strategy, a power losses ride trough, built-in energy meter, slip compensation function, true overload and ground fault protection, and standard RS-485 modbus-RTU communications software, in addition to standard encoder built in. Applications include rayon spinning equipment, centrifuges, and air compressors.
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