May 20, 2003 Rev 3.0

IRMCS201

Single Axis Servo Drive Design Platform

Features

Low cost complete AC servo drive design platform

Low cost FPGA (Spartan2) based closed loop

torque and velocity control

Simple design with IR2175 current sensing HVIC

230V/1.0kW maximum output power with 600V/20A

advanced Plug-N-Drive

High bandwidth torque loop response

Flexible drive configuration (PMAC or induction

motor)

Scalable output power rating (500W/1kW)

Quadrature encoder interface

Low cost A/D interface with multiplexer

ServoDesigner

RS232C/RS422 and fast SPI interface (standard)

Built-in trace buffer memory for diagnostics and

monitor function

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

IRMCS201 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 ServoDesigner

Complete hardware schematics and B/Ms are provided so

that user can adapt design into specific needs. IRMCO201

downloadable object code is also available for volume

usage of IRMCS201 design. User can evaluate high

performance servo drive with a specific motor, and tailor

the drive design

Product Summary

Current loop bandwidth (-3dB)

5 kHz(typ)

Speed loop bandwidth (adjustable)

400 Hz(typ)

PWM carrier frequency

70 kHz max

Hardware current loop execution time

6 usec

Improved low speed regulation by 1/T algorithm

Continuous output current

3/6 Arms (.5/1kW)

Overload output current

8/16 Arms (.5/1kW)

Maximum modulation index

1.2

Max SPI comm. speed

6 MHz

Slave SPI configuration

Max RS232C speed

57.6 kbps

Optional RTS/CTS control for RS232C

Trace buffer memory

8 kbyte

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