january 15, 2003 rev 2.1 IRACS201 single axis servo drive design platform accelerator tm system manual features low cost complete a c serv o d r iv e d esig n platform low cost fpga (spartan2) based closed loop torque a nd v e loc i ty c ontrol simp le d esig n w i th ir mo tio n ch ip set (ir2137 g a te d r iv e hvic an d ir2175 cu rren t sen sin g hvic) 230v/1.5kw maximu m o u t p u t p o w er w i th 600v/30a s t a nda rd econo-pim2 igbt module high ba ndw idth torque loop re s pons e fle x i ble driv e c onfigura t ion (pma c or induc tion motor) scalab le o u t p u t p o w er ratin g (500w /1kw /1.5kw ) qu ad ratu re en co d e r o r reso lv er in terface l o w co st a / d in terface w i th mu ltip lexer l o ss min i mizatio n sp ace vecto r pw m serv o d esig h e r to o l fo r easy o p e ratio n rs232c/rs422 an d fast spi in terface (stan d a rd ) built-in trace buffer memo ry for diagnostics and monitor func tion sy nqne t tm fo r mu lti-axis exp an sio n (o p t io n a l) parallel in terface fo r micro c o n t ro ller exp an sio n o r de bug port ov e r -c urre nt a nd ground fa ult prote c t ion ov e r -v olta ge / unde r-v o lta g e prote c t ion dy n a mic brakin g co n t ro l w i th b r ake igbt / f w d discrete i/os (sta rt/stop/fa ult/fltclr/sync/dir/pwmen) configura t ion da ta re te ntion a t pow e r up/dow n description IRACS201 is a complete servo drive design platform for ac servo drive applications up to 1.5kw . t he sy stem contains complete hardw are and preloaded object code for the f p ga, and the gui (graphic user interface) softw are. complete hardw are schematics and b/ms are provided so that user can adapt design into specific needs. iraco201 dow nloadable object code is also available for volume usage of IRACS201 design. user can evaluate high performance serv o drive w i th 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 100 khz max hardware current loop execution time 4 usec improved low speed regulation by 1/t algorithm continuous output current 3/6/8 arms(.5/1/1.5kw) overload output current 8/16/22 arms(.5/1/1.5kw) maximum modulation index 1.2 loss reduction svpwm 33% switching loss max spi comm. speed 6 mhz master/slave spi configuration max rs232c speed 57.6 kbps optional rts/cts control for rs232c trace buffer memory 8 kbyte configuration data eeprom 128 byte t h is docum ent is the pr oper t y of i n ter n ational rectifier and m a y not be copied or distr i buted without expr essed consent.
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