Stepper motor amplifier from the Lexium SD315 series. The SD315 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 without the oscillator operating mode. The peak current is up to 10 A. The supply voltage covers the range 24-48 VDC.