en.Wedoany.com Reported - EAO has announced the launch of the DB31 Series Stepper Motors, based on Sanyo Denki's reputation in precision engineering. This series is a fully integrated motor and drive assembly that delivers powerful performance within a compact 56mm square package, suitable for industrial applications requiring high-precision motion control, such as automation, robotics, conveyors, and packaging equipment, designed to meet the high-accuracy demands of next-generation industrial applications.
As the latest addition to Sanyo Denki's Sanmotion product portfolio, the DB31 series combines a high-performance stepper motor with an integrated driver, ensuring precise and repeatable motion within the rated torque range, unaffected by load variations. These units have undergone vibration testing from 10Hz to 2000Hz on all axes and are equipped with protective features such as main circuit voltage monitoring, fuse protection, and CPU fault detection, enabling stable operation in harsh environments. The integrated driver supports various standard commands including positioning, continuous rotation, and homing, with user-configurable parameters such as position, speed, acceleration, and command selection, facilitating direct commissioning and optimization.
To improve motion smoothness and reduce mechanical shock, the DB31 series employs two S-curve acceleration and deceleration profiles. One provides gradual peak acceleration between 25% and 75% of the motion cycle, with acceleration up to 1.25 times that of a linear ramp; the other reaches peak acceleration at the midpoint, with acceleration up to 1.9 times that of a conventional linear configuration. These profiles help minimize vibration and mechanical stress during speed changes.
The input specification for this series is 24VDC ±10% 2A. The DB31F561S model has a holding torque of 0.14Nm and dimensions of 56mm × 76mm; the DB31F562S-50 model has a holding torque of 0.24Nm and dimensions of 56mm × 88mm. Communication is via RS485 at 38400bps, supporting up to 16 axes, with control achieved through an open-loop system using 1/8 microstepping. The units also provide five optocoupler inputs for functions such as limit, homing, rotation direction, and emergency stop, as well as two optocoupler outputs for run and alarm signals.
Robert Davies, Marketing Manager at EAO, stated that integrating the motor and drive into a single unit offers practical and performance advantages. Since the DB31 series stepper motors allow direct connection of limit sensors and homing signals, power and communication control can be achieved with just five connections, thereby reducing internal wiring and simplifying equipment design.
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