Product Description:

The 6410-001-C-H-N from Pacific Scientific is a chopper stepper motor drive positioned within the 6410 Stepper Drives series. Designed for two-phase stepping motors, the unit converts DC bus energy into precisely timed phase currents that determine shaft position. By accepting step and direction pulses from a motion controller, it sequences gate signals to its output bridge so that the connected motor indexes with fixed angular accuracy. This drive is intended for machine tools, pick-and-place mechanisms, and other automation nodes where compact size and rapid microstepping are required.

Internally, the two-phase bipolar bridge is switched at a carrier frequency of 20 kHz, which is high enough to move the switching band beyond the audible range and limit current ripple. The drive circuit is classified as a two-phase bipolar chopper, meaning it regulates each motor phase independently by chopping the DC link. With a bus limit of 75 VDC, the module can deliver a peak winding current of 7.1 A and a continuous rating of 5.0 A RMS, allowing high torque at low speed. For fine command resolution, the microstep generator supports up to 51,200 steps per revolution, providing smooth motion for precise positioning.

A built-in heat sink and automatic idle current reduction support thermal management. When the motor is stationary, the output drops to 50% of the programmed value, reducing dissipation in both the windings and the drive. The assembly is specified for ambient temperatures up to 50 °C, while its chassis may reach 60 °C without exceeding operating limits; forced airflow across the fins helps maintain this margin. High-speed controllers can stream pulse trains at 2 MHz, and the drive can accept them without missed counts. The physical dimensions are 104.90 mm in height, 39.62 mm in width, and 82.55 mm in depth, which supports dense panel layouts in multi-axis cabinets.