Product Description:

The 6410-001-N-H-K is a microstepping power module manufactured by Pacific Scientific in the 6410 Stepper Drives series. It translates step-and-direction logic from host controllers into precision current waveforms that energize two-phase stepper motors, giving machine axes predictable displacement without feedback devices. By supplying regulated phase current, the drive allows automated handling equipment, labeling stations, and light pick-and-place arms to achieve repeatable positioning while staying within a compact 1.0-lb chassis. Its compact format also suits control cabinets where available panel space is limited.

The drive regulates motor current through a fixed chopper frequency of 20 kHz, keeping audible noise low and current ripple small during normal operation. Motion granularity tops out at 51,200 steps/rev, which permits sub-arc-minute resolution when paired with 200-step motors. Current delivery ranges up to 5.0 A RMS per phase, with the power section accepting bus voltages up to 75 Vdc; both ratings provide ample overhead for midsize NEMA-23 and NEMA-34 stacks. An enable delay of 500 µs prevents premature current flow while control logic stabilizes. Direction and enable lines each draw 3.0 mA, and the supply input can furnish as much as 5.0 A without exceeding internal power dissipation limits.

The minimum settable current is 0.625 A RMS, allowing smaller motors to run cool during dwell periods, while coarse positioning can be executed at a base increment of 200 steps/rev. Step command lines require only 5.5 mA, easing interface with 5 V CMOS outputs. For rapid accelerations, the driver can source a peak of 7.1 A before reverting to the programmed RMS level. Continuous service is supported up to 50 °C ambient, provided the chassis surface remains below 60 °C. The 24–75 Vdc input span accommodates unregulated supplies, and overall unit weight of 1.0 lb simplifies panel mounting in space-restricted control enclosures.