Technical & Performance Specifications

• Input Power Supply: 110/230 VAC universal single-phase mains input
• Rated Output Phase Current: 2.8 A per phase continuous
• Supported Motor Step Angle: 1.8° bipolar four-phase stepper motor
• Position Correction Resolution: 2000 counts per revolution closed-loop feedback
• Physical Dimension: 65 mm (W) × 65 mm (H) × 55 mm (D)
• Unit Weight: 0.8 kg
• Operating Ambient Temperature: -20°C ~ +50°C
• Storage Temperature: -40°C ~ +85°C
• Protection Class: IP20 cabinet internal installation
• Rated Service Lifespan: 20,000 operating hours
• Certifications: CE safety compliance certified

Functional Features

1. Closed-loop position feedback correction eliminates stepper motor step loss under variable load
2. Micro-step subdivision support from 1–256 subdivisions configurable via front DIP switches
3. Built-in resonance suppression algorithm to eliminate low-speed vibration and noise
4. Dual control signal input modes: Pulse/Direction analog control + RS232 serial communication parameter configuration
5. Complete overcurrent, overvoltage, overtemperature, motor open-circuit fault detection & alarm output
6. Built-in motor holding current reduction function to cut standby power consumption by 60%
7. Front panel DIP switch for rapid configuration of micro-step, holding current, fault signal logic

Material Composition

• Drive housing: Blue ABS flame-retardant plastic front panel, black aluminum alloy rear heat sink
• Power switching device: MOSFET power transistors with insulated packaging
• Internal PCB: FR4 flame-retardant circuit board with anti-surge protection components
• Connector terminals: Copper alloy conductive terminals with insulating PA66 plastic housing
• Cooling fan: 12VDC brushless axial cooling fan integrated on rear heat sink

Structural Characteristics

1. Horizontal cabinet mounting bracket design with fixed screw holes on both sides
2. Front panel equipped with DB9 serial communication port, pulse signal terminal block, status LED indicators
3. Rear full aluminum fin heat sink with built-in cooling fan for forced convection heat dissipation
4. Isolated internal layout separating power circuit and low-voltage control signal circuit
5. Top-mounted terminal block for motor four-phase winding power connection

Working Principle

1. Single-phase AC input converts to regulated DC bus voltage via internal rectifier circuit
2. Main control chip receives pulse position command signals from upper controller, calculates micro-step current waveform
3. MOSFET power stage outputs precise phase current to four-phase stepper motor windings
4. Motor mounted encoder feeds real-time rotor position data back to drive closed-loop feedback circuit
5. Internal control chip compares command position and actual feedback position, dynamically adjusts output current to eliminate step loss and maintain accurate positioning

Advantage Highlights

1. Closed-loop feedback eliminates traditional open-loop stepper motor step loss failure mode
2. Resonance suppression algorithm achieves ultra-smooth low-speed operation with minimal mechanical vibration
3. Wide input voltage range adapts to global industrial single-phase power grids
4. Compact 65×65 mm footprint occupies minimal cabinet installation space
5. Configurable holding current reduces continuous standby heat generation and extends motor service life
6. Simple DIP switch configuration eliminates dedicated PC software for basic parameter setup

Applicable Industries

Installation Requirements

1. Horizontal fixed mounting via side mounting screw holes inside sealed industrial control cabinet
2. Maintain 40 mm rear clearance for cooling fan air intake and exhaust airflow
3. Install unit away from high-power servo drives and transformers to avoid electromagnetic signal interference
4. Motor winding cables adopt shielded twisted pair wiring with single-point shield grounding
5. Signal pulse wiring routed separately from power wiring to prevent noise-induced position error

Usage Precautions

1. Prohibit operation outside sealed cabinet; dust ingress blocks cooling fan and triggers overtemperature protection
2. Strictly match 2.8A rated phase current stepper motors; higher current motors cause drive overcurrent burnout
3. Adjust holding current to minimum non-slip value during standby to reduce continuous heat accumulation
4. Do not operate drive without motor connected; open-circuit winding triggers permanent power stage damage
5. Clean cooling fan and heat sink fin dust accumulation every 2 months in dusty workshop environments
6. Disconnect AC power supply before modifying front DIP switch configuration to avoid parameter misconfiguration short-circuit risk