Stepper motor amplifier of the Lexium SD315 series. The SD315 is a universally applicable stepper motor amplifier. In combination with selected 3-phase stepper motors, it creates a very compact and powerful drive system. Setpoints are typically provided and monitored by a higher-level PLC or motion controller. This amplifier features a pulse/direction interface without the oscillator operating mode. The peak current is up to 10 A. The supply voltage ranges from 24 to 48 VDC.