Product Description:

The 6410-001-N-N-N-LF is a microstepping motor drive produced by Pacific Scientific within the 6410 Stepper Drives series. Designed for panel mounting, the unit converts high-speed digital step commands into regulated phase currents that advance a two-phase stepper motor by precise increments. By executing these functions, the drive becomes a basic building block in automated positioning systems such as pick-and-place heads, indexing tables, and small gantries where repetitive, open-loop motion is adequate.

At the heart of the drive is a two-phase bipolar chopper circuit that modulates winding energy at 20 kHz; this switching rate minimizes audible noise while keeping current ripple low. The power stage operates from a DC bus between 24 Vdc and 75 Vdc, giving designers flexibility when using unregulated rectifier supplies or battery packs. During acceleration bursts, the output can reach a peak of 7.1 A, and it is enabled through opto-isolated step inputs that require a minimum of 5.5 mA. The STEP logic low presents no more than 0.5 V to the controller, preventing ground bounce issues in multi-axis racks. A programmable ramp generator does not allow velocity changes faster than 50 ms, protecting the mechanical load from sudden torque transients.

Continuous operation is supported at a rated phase current of 5.0 A RMS, provided the aluminum chassis stays below 60 °C. For command bandwidth, the device can process pulse trains up to 2 MHz when the input filter is bypassed and up to 500 kHz when the onboard debouncer is active, allowing a trade-off between noise immunity and maximum speed. This allows the controller to balance signal cleanliness against the highest attainable step rate for the application. The housing measures 5.00 in high, 4.30 in wide, and 1.50 in deep, and the unit weighs 1.0 lb for direct attachment to DIN plates or small enclosures.