Introduction

The DM556 is a versatility fully digital stepping driver based on a DSP with advanced control algorithm. The DM556 is the next generation of digital stepping motor controls. It brings a unique level of system smoothness, providing optimum torque and nulls mid-range instability. Motor self-test and parameter auto-setup technology offers optimum responses with different motors and easy-to-use. The driven motors can run with much smaller noise, lower heating, smoother movement than most of the drivers in the markets. Its unique features make the DM556 an ideal solution for applications that require low-speed smoothness. Compared to the DM432, broader input voltage and output current ranges make the DM556 can drive much more motors than the DM432. What’s more, owing to its higher performance DSP, driven motors can achieve much higher speed (above 3000RPM) than that of the DM432, offering servo-like performances.

Applications

Suitable for a wide range of stepping motors, from NEMA frame size 17 to 34. It can be used in various kinds of machines, such as laser cutters, laser markers, high precision X-Y tables, labeling machines, and so on. Its unique features make the DM556 an ideal solution for applications that require both low-speed smoothness and high speed performances.

Electronic Specifications (Tj=25℃)

Mechanical Specifications (Unit: mm [inch], 1 inch=25.4 mm)

Figure 1: Mechanical Specifications

Pin Assignment and Description

Control Signal Connector P1 pins

Power connector P2 pins

Microstep Resolution Selection

When it’s not in software configured mode, microstep resolution is set by SW5, 6, 7, 8 of the DIP switch as shown in the following table:

Current Setting

When it’s not in software configured mode, the first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor’s required current.

Typical Connections

Figure 2: Typical Connections