Integrated stepper motor solutions reduce wiring and boost reliability

Building on Sanyo Denki’s reputation for precision engineering, the new DB31 Series Stepper Motors are fully integrated motor-and-driver assemblies that deliver exceptional performance in a compact 56mm square form factor. 

The latest addition to Sanyo Denki’s Sanmotion family of motion control solutions, the new DB31 Series systems feature a highperformance stepper motor and driver that ensures precise, repeatable movement within the rated torque range, regardless of load! The motors are vibrationtested between 10–2000Hz across all axes and feature protective functions such as maincircuit voltage monitoring, fuse protection, and CPU fault detection.

The driver integrated with the stepper motor supports a range of standard operation commands including, positioning, continuous rotation and homing. Users can quickly configure key parameters such as position, speed, acceleration, and command selection, enabling fast commissioning and easy optimisation. 

To reduce mechanical shock and improve motion smoothness, DB31 Series stepper motors offer two types of Scurve acceleration/deceleration profiles: A gradual peak acceleration between 25–75% of the cycle that delivers up to 1.25× the acceleration of linear ramps, or an acceleration peak at the 50% midpoint that delivers up to 1.9× the acceleration of conventional linear profiles. The choice of two advanced acceleration modes helps to minimise vibration and stresses during speed transitions.

According to Robert Davies, marketing manager with EAO, integrating the stepper motor with the driver in a single unit both reduces system complexity and enhances reliability: "As DB31 Series Stepper Motors allow direct connection of limit sensors and homing signals enabling control of power and communication to be achieved with as few as five connections, reducing internal wiring and simplifying equipment design."

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