Product Description:

The 6410-001-C-H-R is a stepper drive produced by Pacific Scientific for the 6410 Stepper Drives series. It supplies controlled, chopped current to two-phase stepper motors, translating step and direction commands from a motion controller into regulated phase currents so that the motor advances with precise angular increments. In automated conveyors, labelers, or index tables, this drive provides the interface between low-level logic signals and the high-current windings of the motor.

The electronic switch network inside the unit operates at a chopper frequency of 20 kHz, a rate high enough to keep current ripple low and acoustic noise above the audible range. Position granularity is enhanced by a maximum binary microstep resolution of 51,200 steps/rev, which is useful when machines require fine incremental positioning. The power stage tolerates a bus of up to 75 Vdc, allowing higher motor back EMF and higher top speeds before current foldback occurs. For torque-demanding axes, the current regulator can deliver up to 5.0 A rms per phase while mounted on an external heat sink. The chassis remains within its thermal limit as long as the aluminum plate temperature does not exceed 60 °C.

Installation clearances and wiring are simplified by a minimum supply of 24 Vdc, letting the same 24 V control bus feed both logic and power when full performance is not required. Low-inertia motors or light loads can be driven with only 0.625 A rms, which reduces heat generation during idle holding. For rapid acceleration, the drive can accept peak phase currents up to 7.1 A without losing synchronism, and it tracks incoming step commands at rates up to 2 MHz when filters are bypassed. All of these capabilities are packaged in a frame that measures only 2.5 in wide with the factory heat sink attached, which helps conserve panel space in multi-axis enclosures.