Product Description:

The 6415-001-C-N-K is a microstep drive released by Pacific Scientific in the 6415 Microstep Drives series. It translates step and direction signals from a motion controller into finely graduated phase currents for a two-phase stepper motor, allowing precise positioning in pick-and-place modules, small gantries, and indexers. The drive ships with a 25-contact D-sub for logic wiring, a 3-contact screw terminal for power, and a 5-contact screw terminal for the motor phases.

The analog velocity input is accepted through a differential stage that presents 20 kΩ of input impedance and tolerates an input range of ±10 Vdc; this allows the drive to interface directly with standard PLC analog cards without loading them. Motor current is modulated by a fixed 20 kHz chopper frequency, placing switching noise above the audible band while keeping ripple low. When operated in its highest microstepping table, the unit delivers 51200 steps/rev, which supports smooth low-speed movement on high-pole motors. During continuous motion, each phase can supply up to 5 A rms, and current feedback with PWM control helps maintain that value despite bus variation. The signal connector also provides an 8 Vdc reference output for external potentiometers. A connector kit and a snap-on cover are included, and no additional heat sink is mounted, so panel conduction must remove losses.

DC power may be applied anywhere between 24 Vdc and 75 Vdc, enabling operation from low-voltage supplies or higher-density rectified rails. Short acceleration bursts can draw a peak of 7.1 A per phase before current foldback engages. With an envelope of 5.0 × 1.5 × 4.3 in, the unit fits shallow DIN plates, and its weight permits direct mounting on moving carriages when distributed inertia is acceptable. The absence of a factory heat sink reduces profile depth, but airflow across the aluminum base is required during sustained operation.