... Motor Drive 2M880NFeatures: 1. Automatic parameter adjustable regulation 2. Supporting driver test running function3. Supporting phase memory function4. Supporting PLS+DIR ... , 5.7, 6.Micro step2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 100, 128, 200, 256Input signalThree ... current: 20mAProtectionOver-voltage, under-voltage, short circuit, overheat Stepper motor driver 2M880N