DM556 Digital Stepper Motor Driver with micro stepping 20 to 50V 5.6A

DM556 is defined as a fully digital stepping driver designed based on a DSP with an advanced control algorithm. This next generation of digital stepping motor controls offers a unique level of system smoothness. Thereby providing optimum torque and nulls mid-range instability. It features auto-identification and parameter auto-configuration offers quick setup technology while using with different motors and is easy to use.

The DM556 supports PUL/DIR and CW/CCW modes and pulse active at rising or falling edges. It also uses optocouplers to increase noise immunity and interface flexibility. In case if the optocouplers supply voltage greater than +5V, a current-limiting resistor is connected at each command signal terminal to prevent overheating the optocouplers. The on-board RED LED indicates protection activated status.

The DM556 can drive any 2-phase and 4-phase hybrid stepping motor. Therefore, in order to improve reliability, the driver features some built-in protection functions such as  Over-current Protection, Over-voltage Protection, and phase error protection. When the continuous current exceeds 16Amp or in case of a short circuit between motor coils or between motor coil and ground, Over-current protection activates and RED LED will turn on once within each periodic time (3 s). In case when the power supply voltage exceeds 52±1 VDC, over current protection is activated and the RED LED turns on twice within each periodic time (3 s). Phase Error Protection gets activated when motor power lines are wrong & not connected. So the RED LED will turn on four times within each periodic time (3 s).

DM556 operates with much smaller noise, lower heating, smoother movement than most of the drivers. This unique feature makes it an ideal solution for applications that require low-speed smoothness. When compared to the DM432C, DM556 offers broader input voltage and output current ranges. This makes it capable of driving much more motors than the DM432C. Moreover, it can achieve a much higher speed (above 3000RPM) than that of the DM432C, offering servo-like performances.