January 15, 2003 Rev 2.1 IRACS201 Single Axis Servo Drive Design Platform AcceleratorTM System Manual Features Product Summary Low cost complete AC servo drive design platform Low cost FPGA (Spartan2) based closed loop torque and velocity control Current loop bandwidth (-3dB) 5 kHz(typ) Speed loop bandwidth (adjustable) 400 Hz(typ) PWM carrier frequency 100 kHz max Simple design with IR motion chipset (IR2137 gate drive HVIC and IR2175 current sensing HVIC) Hardware current loop execution time 230V/1.5kW maximum output power with 600V/30A Improved low speed regulation by 1/T algorithm standard ECONO-PIM2 IGBT module High bandwidth torque loop response Continuous output current Flexible drive configuration (PMAC or induction motor) Overload output current Scalable output power rating (500W/1kW/1.5kW) Maximum modulation index Quadrature encoder or Resolver interface Low cost A/D interface with multiplexer Max SPI comm. speed ServoDesigher tool for easy operation Master/Slave SPI configuration RS232C/RS422 and fast SPI interface (standard) Built-in trace buffer memory for diagnostics and monitor function SynQnet TM for multi-axis expansion (optional) Parallel interface for microcontroller expansion or debug port 3/6/8 Arms(.5/1/1.5kW) 8/16/22 Arms(.5/1/1.5kW) Loss reduction SVPWM Loss minimization Space Vector PWM 4 usec 1.2 33% switching loss Max RS232C speed 6 MHz 57.6 kbps Optional RTS/CTS control for RS232C Trace buffer memory Configuration data EEPROM Over-current and ground fault protection Over-voltage / Under-voltage protection Dynamic Braking control with brake IGBT/FWD Discrete I/Os (START/STOP/FAULT/FLTCLR/SYNC/DIR/PWMEN) Configuration data retention at power up/down Description IRACS201 is a complete servo drive design platform for AC servo drive applications up to 1.5kW. The system contains complete hardware and preloaded object code for the FPGA, and the GUI (graphic user interface) software. Complete hardware schematics and B/Ms are provided so that user can adapt design into specific needs. IRACO201 downloadable object code is also available for volume usage of IRACS201 design. User can evaluate high performance servo drive with a specific motor, and tailor the drive design This document is the property of International Rectifier and may not be copied or distributed without expressed consent. 8 kbyte 128 byte