Testra Corp. introduced a microstepping motor drive series for lower cost, improved performance, and direct replacements for the recently discontinued Schneider IM483 drive series. Using the same footprint, Testra’s Model SS483 measures 2.75” (69.9 mm) x 3.00” (76.2 mm) x 1.20” (30.5 mm). Chopper stabilization gets rid of commutation discontinuities further reducing motor noise and…

Testra Corp. unveiled its RoadRunner SoftStep R213S microstepping motor drive. The intelligent on board processor treats the input steps as small vector moves and smoothly chains them together with 250 or 256 micro-steps per regular motor step with controlled accelerations.  Dual chopper stabilized current comparators Auto-calibration Gecko drive compatibility The ability to micro-step finely in either…