NEMA Size 23, 2 Phase, 1.8° Bipolar Step Motor w/ Built-In Microstepping Driver Operates from +12 to 48 VDC Phase currents from 0.3 to 3.0 Amp Peak Step resolutions from half step to 256x microstepping Four selectable damping modes Smooth motion Three optically isolated control inputs and one optically isolated control output Hold current reduction capability with adjustble current and timeout setting Pole Damping Technology ™ On Board Encoder Configuration Board Port