Pacific Scientific 6410-007-N-N-N

Product Name

Microstepping Bipolar Stepper Drive

Product Description

The Pacific Scientific 6410-007-N-N-N is a high-performance bipolar chopper stepper drive that converts step and direction input signals into precision winding current control for two-phase stepper motors.

Category:
Description
Technical Specifications
  • Input Voltage: 24–75 VDC
  • Output Current: 0.625 A to 5 A RMS, selectable via DIP switches
  • Chopping Frequency: 20 kHz
  • Step Resolution:
    • Binary mode: Full step to 1/256 step
    • Decimal mode: Full step to 1/250 step
  • Maximum Step Rate: 500 kHz (filter enabled), 2 MHz (filter disabled)
  • Input Current: STEP: 5.5–10 mA; DIR/ENABLE: 3.0–4.5 mA
  • Operating Temperature: 0 °C to +50 °C
  • Cooling: Natural convection, optional auxiliary heat sink
  • Protection: Line-to-line short, line-to-neutral short, under-voltage, over-voltage
Functional Features
  • Patented Digital Electronic Damping suppresses motor resonance across the speed range
  • 4-phase PWM bipolar chopper delivers low ripple current and high back-EMF rejection
  • Selectable idle current reduction cuts motor heating during standstill
  • Step input filter rejects electrical noise on control signals
  • Optically isolated inputs protect control circuitry from field transients
Application Scenarios
  • CNC machining and positioning systems
  • Industrial robotics and gantry systems
  • Packaging and labeling machinery
  • Semiconductor manufacturing equipment
  • Material handling conveyor systems
Performance Parameters
  • Step propagation delay: 500 μs below 500 full steps per second
  • Current regulation accuracy: ±0.25% of set value
  • Idle current level: 50% of rated current, with selectable delay time
Material Composition
  • Heat sink: Extruded aluminum alloy
  • Circuit board: FR-4 copper-clad laminate
  • Chassis: Zinc-coated steel
  • Terminals: Nickel-plated brass screw terminals
Structural Features
  • Open-frame chassis design for panel or chassis mounting
  • DIP switch bank for current and resolution configuration
  • Integrated power stage and control logic on single board
  • Screw terminal and D-sub connector options
Working Principle

The drive receives step pulse and direction signals from an external controller. Internal logic translates step pulses into commutation sequences for the two motor phases. The 4-phase PWM chopper circuit regulates winding current at 20 kHz to maintain constant torque output. The Digital Electronic Damping algorithm adjusts current parameters in real time to counteract system resonance and mid-speed instability. Microstepping mode subdivides each full step into multiple microsteps for smooth motion and high positioning resolution.

Installation Requirements
  • Mount on a flat conductive surface for optimal heat dissipation
  • Connect DC power supply with correct polarity and over-current protection
  • Wire step, direction and enable signals to corresponding input terminals
  • Configure DIP switches for desired current and resolution before applying power
Usage Notes
  • Do not exceed 75 VDC maximum input voltage
  • Maintain minimum 10 mm clearance around drive for airflow
  • Never disconnect motor windings while power is applied
  • Set idle current appropriately to balance heat generation and torque retention
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