High Current NEMA17/23/34 Stepper Motor Driver Controller DM860/DM860H (7.2A) for 42, 57, 86 Stepper Motors (0.9°/1.8°) Model: DM860/DM860H Description: The DM860/DM860H stepper motor driver controller is a high-performance, digital DSP stepper motor driver designed to enhance the precision and efficiency of your NEMA 17, 23, and 34 stepper motors. Ideal for high subdivision applications, this driver supports 128 subdivisions, making it perfect for 42, 57, and 86 stepper motors (0.9°/1.8°) with 4-phase and 2-phase configurations (4, 6, or 8 cables). Interface Definition Control signal interface Name Function PUL PUL- Pulse input signal The pulse effective edge is adjustable, and the default pulse rising edge is effective; in order to reliably respond to the pulse signal, the pulse width should be greater than 1.2us. 5-24VDC level compatible. DIR DIR- Direction input signal High/low level signal, to ensure reliable commutation of the motor, the direction signal should be established at least 5us before the pulse signal. The initial running direction of the motor is related to the motor winding connection. Interchanging any phase winding (such as A and A- exchange) can change the initial running direction of the motor. 5-24VDC level compatible. ENA ENA- Enable control signal This input signal is used to enable or disable the driver output. When ENA is connected to a low level (or the internal optocoupler is turned on), the driver will cut off the current of each phase of the motor to make the motor in a free state and not respond to step pulses. When this function is not needed, the enable signal end can be left floating. 5-24VDC level compatible.
