... for 2-phase, 4, 6 and 8 leads step motors, with Nema size 23to 424. Output current selectable ... makes it cost effective and space efficient. With a higher voltage input, this high performance bi ... , that comes in 4, 6, or 8 leads.With an automatic optimization speed control technique, the PowerStep ... series drive output is very stable, with almost zero vibration and noise, performing close to ...