MERCURY STEP C-663

Product Brief Introduction

Industrial closed-loop stepper motion control unit manufactured under Mercury Step brand, dedicated to precise positioning automation equipment, integrated drive and control circuit in single compact housing for small-scale linear and rotary motion axes.
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Description

Technical Specifications

  • Input Voltage Range: AC 110V ~ AC 220V single-phase power supply
  • Output Current Rating: 0.5A ~ 6.3A adjustable phase current
  • Step Resolution Division: 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 microstep subdivision
  • Pulse Input Frequency Max: 200kHz differential signal input
  • Motor Phase Compatibility: 2-phase 4-wire / 6-wire stepper motors
  • Operating Temperature Range: -10°C ~ +55°C
  • Storage Temperature Range: -40°C ~ +80°C
  • IP Protection Grade: IP20 indoor cabinet installation standard
  • Dimensions: 118mm (L) × 72mm (W) × 32mm (H)

Functional Features

  1. Built-in closed-loop position feedback correction with encoder signal interface
  2. Over-current, over-voltage, overheat, stall, wiring short-circuit multi-protection circuit
  3. Digital DIP switch for subdivision and current parameter on-site adjustment without software
  4. Direction signal, pulse signal, enable signal opto-isolated input terminal block
  5. Alarm output relay contact for fault signal transmission to PLC host system
  6. Automatic current reduction function under static holding state to reduce heat generation

Performance Parameters

  • Positioning Repeat Accuracy: ±0.01 mechanical degree
  • Peak Dynamic Response Frequency: 120kHz stable continuous operation
  • Holding Torque Retention Efficiency: 92% rated torque at static state
  • Fault Response Trigger Speed: ≤10ms after abnormal state detection

Material Composition

  • Outer Housing: High-strength flame-retardant ABS plastic, UL94-V0 fire rating
  • Internal Circuit Board: FR-4 double-sided copper-clad circuit board with tin-lead free plating
  • Heat Dissipation Base: Aluminum alloy extruded heat sink
  • Terminal Blocks: Copper alloy conductive terminals with PA66 insulation shell

Structural Characteristics

  1. Vertical DIN rail mounting structure for standard electrical cabinet installation
  2. Front panel reserved DIP adjustment switches, power indicator LED, fault alarm LED
  3. Separate wiring zones for power circuit, motor circuit, control signal circuit to avoid electromagnetic interference
  4. Integrated radiator bottom for passive heat dissipation without auxiliary cooling fan

Working Principle

Receives pulse and direction control signals from upper motion controller or PLC; converts digital pulse signals into phase-shifted alternating current to drive 2-phase stepper motor winding; collects real-time rotor position signal from matching encoder, automatically compensates position deviation via closed-loop algorithm; cuts off output current and triggers alarm when operating parameters exceed preset safety thresholds.

Advantage Highlights

  • Integrated drive-control two-in-one design reduces wiring complexity and cabinet space occupation
  • Wide adjustable output current compatible with full series small-to-medium torque stepper motors
  • Opto-isolated signal circuit eliminates electromagnetic interference from industrial frequency conversion equipment
  • Full range hardware protection avoids motor and driver permanent damage under abnormal operating conditions
  • No dedicated configuration software required; field parameter setting via physical DIP switches

Applicable Industries

3C electronic assembly equipment, packaging machinery, textile automation equipment, laser marking equipment, small CNC engraving machines, medical laboratory automation instruments, logistics sorting miniature conveying axes

Model Series Belonging

MERCURY STEP C Series Closed-Loop Stepper Drivers, including C-421, C-572, C-663, C-864 full size specifications matching 42/57/86 frame stepper motors

Installation Requirements

  1. Mount on standard 35mm DIN rail inside fully enclosed electrical control cabinet
  2. Maintain minimum 20mm vertical clearance above and below module for heat dissipation airflow
  3. Separate power wiring and signal wiring routing with independent cable ducts to prevent cross interference
  4. Ground the metal heat sink base via dedicated PE grounding terminal
  5. Ambient installation space humidity must maintain 10% ~ 85% non-condensing

Operation Precautions

  1. Prohibit power-on wiring modification; cut off main AC power supply before all wiring operations
  2. Do not connect 3-phase AC power supply to single-phase AC input terminal
  3. Match motor rated current with driver adjustable output current; avoid long-term full current continuous operation without heat dissipation
  4. Prevent metal conductive debris falling into internal circuit cavity during cabinet maintenance
  5. If fault alarm LED lights up, cut off power supply and inspect motor winding short circuit, encoder disconnection, over-load stall fault before restart operation
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