Product Description:

The PMMBD5313010 is a pulse-train motor driver manufactured by Sanyo Denki as part of its PM Drivers series. Designed for open-loop positioning of two-phase stepper motors, the unit converts incoming clock and direction signals from a motion controller into phased current sequences that advance the rotor by discrete increments. In automated pick-and-place, labeling, and compact gantry axes, the driver supplies the required logic interface between the PLC’s digital outputs and the motor windings, enabling rapid speed changes and repeatable indexing without encoder feedback.

The input stage recognizes clock pulses as brief as 1.25 µs; this minimum width indicates how short each step command can be while still being latched. With a maximum frequency of 400 kpulses/s, the driver supports high mechanical speeds when small step angles are selected. A front-end impedance of 330 Ω limits source current from TTL, CMOS, or line-driver outputs, protecting sensitive I/O cards. To minimize motor heating, the clock-pulse duty cycle must not exceed 50%, ensuring equal on and off periods at the maximum switching rate. Internally, selectable microstepping ranges extend to 250 subdivisions per full step, providing finer resolution when smoother motion is required.

For directional control, the controller must keep the DIR line stable for at least 10 µs after the last pulse and establish it at least 50 µs before the next pulse sequence, preventing phase-reversal errors. The onboard phase-monitor transistor sinks up to 5 mA through its open-collector output and withstands collector-emitter voltages up to 30 V, providing a status signal for supervisory logic. The driver offers sixteen selectable resolution codes, with a minimum division of one step. These settings accommodate coarse jogging movements as well as fine micro-increments in positioning applications.