Description
PACIFIC SCIENTIFIC SCE905AN-002-01
Technical Specifications Brand: Pacific Scientific Model: SCE905AN-002-01 Input Power: 120/240 VAC single phase, 50/60 Hz Continuous Output Current: 15 A RMS Feedback Interface: Incremental encoder, resolver, hall sensor Control Modes: Torque, velocity, position Command Input: ±10 V analog, pulse and direction digital command Digital I/O: Multiple opto-isolated programmable inputs and outputs Operating Temperature: 0°C to +50°C Protection Grade: IP20 cabinet mounting Mounting: Panel or DIN rail mounting
Functional Features High current power stage provides large continuous torque for heavy load servo motors. Multiple feedback interfaces support resolver and encoder equipped motors. Dual command input modes adapt to different host controller types. Built-in motion sequencer stores positioning profiles for standalone operation. Programmable discrete I/O for machine safety interlock and sensor signal collection. Complete hardware protection covers overcurrent, overvoltage, undervoltage, overtemperature and feedback loss. PC software enables parameter configuration, auto-tuning and fault history retrieval.
Application Scenarios Heavy-duty packaging equipment, large textile machinery, gantry automation axes, material handling robot joints, woodworking CNC machine axes, metal processing automated fixtures.
Performance Parameters High overload capability to handle short peak torque demand. Fast current loop response for heavy load dynamic changes. Resonance suppression algorithm reduces mechanical vibration. Instant fault protection activation when electrical parameters exceed limits. Stable continuous operation under repeated start-stop cycles.
Material Composition Housing: Thick extruded aluminum alloy heat sink casing. PCB: FR4 multilayer power PCB and control PCB with conformal coating. Core Components: High-current IGBT power module, DSP motion processor, resolver demodulation chip, surge protection components. Terminals: Heavy-duty screw-clamp power terminals and signal terminal blocks. Indicators: High brightness SMD LED for power, servo ready and fault alarm.
Structural Features Vertical heavy-duty compact enclosure with large rear aluminum heat sink. Front panel separates high-current power terminals and low-voltage signal terminals. Internal layout partitions power circuit, feedback circuit and control logic circuit. Front LED indicators display operating and fault state. Solid metal mounting lugs for panel installation, compatible with DIN rail adapter.
Working Principle Single-phase AC power enters EMC filter and rectifier to create DC bus voltage. Motion DSP receives motion command and calculates required motor current. PWM signals control high-current IGBT module to drive servo motor windings. Resolver or encoder returns rotor position and speed feedback to close control loop. Built-in monitoring circuit continuously detects current, voltage and temperature and cuts power output immediately once fault occurs.
Installation Requirements Mount drive vertically on rigid metal panel inside ventilated cabinet. Use heavy gauge shielded motor cable and shielded feedback cable. Separate power wiring from signal wiring to reduce electromagnetic interference. Complete wiring check, set motor parameters and perform servo auto-tuning. Ensure sufficient air circulation across heat sink surface.
Usage Notes DC bus capacitors hold high voltage after power removal, wait for discharge before opening enclosure. Confirm motor rated current does not exceed drive continuous output rating. Verify resolver or encoder wiring polarity before power on. Regularly clean dust on heat sink to prevent thermal overload. Backup all parameters before making configuration changes.
