Stepper motor amplifier from the Lexium SD326 series. The SD326 is a universally applicable stepper motor amplifier. In combination with selected 3-phase stepper motors, a very compact and powerful drive system is created. Setpoints are typically specified and monitored by a higher-level PLC or motion controller. This amplifier has a pulse/direction interface with speed monitoring and holding brake control. The peak current is up to 6.8 A. The supply voltage can be switched between 115/230 VAC and an EMC filter is integrated.