January 15, 2003 Rev 2.1
Single Axis Servo Drive Design Platform
Accelerator
Features
Low cost complete
AC servo drive design
platform
Low cost FPGA (Spartan2) based closed loop
torque and velocity control
IRACS201
5 kHz(typ)
400 Hz(typ)
100 kHz max
4 usec
TM
System Manual
Product Summary
Current loop bandwidth (-3dB)
Speed loop bandwidth (adjustable)
PWM carrier frequency
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
Flexible drive configuration (PMAC or induction
motor)
Scalable output power rating (500W/1kW/1.5kW)
Quadrature encoder or Resolver interface
Low cost A/D interface with multiplexer
Loss minimization Space Vector PWM
ServoDesigher tool for easy operation
RS232C/RS422 and fast SPI interface (standard)
Built-in trace buffer memory for diagnostics and
monitor function
SynQnet
TM
Continuous output current
Overload output current
Maximum modulation index
Loss reduction SVPWM
Max SPI comm. speed
Master/Slave SPI configuration
Max RS232C speed
3/6/8 Arms(.5/1/1.5kW)
8/16/22 Arms(.5/1/1.5kW)
1.2
33% switching loss
6 MHz
57.6 kbps
Optional RTS/CTS control for RS232C
Trace buffer memory
Configuration data EEPROM
8 kbyte
128 byte
for multi-axis expansion (optional)
Parallel interface for microcontroller expansion or
debug port
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.
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