A microstepping motor drive series by Testra Corporation, Tempe, AZ offers 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 increasing accuracy. The Testra SS483 is ideal wherever one of the Schneider IM483 versions need to be replaced. OEMs can design them into CNC and automation equipment, and other motion applications. The Drives are Rohs and CE compliant.
The SS483 Drive offers 14 micro-step resolutions (both binary and decimal) and a wide variety of connector options. For OEM’s, custom waveforms can be matched to individual motor characteristics to eliminate torque and velocity ripple. Input supply ranges from 12 to 48 VDC. Output current up to 3A rms (4A peak). No minimum inductance. Optional features available in the SS483 product line include various I/O connector options, CW or CCW input, quadrature input, low current (0.1 to 1.0 amp). The SS483S versions include the SoftStep feature utilizing Testra’s intelligent on board processor which treats the input steps as small vector moves at the maximum resolution. This gives ultra-smooth, vibration-free operation regardless of the selected step size.
