ELAU SR-05860005P021S1B0T

Core Technical Specifications

• Rated Mechanical Output Power: 0.5 kW
• Rated Torque: 2.7 N·m continuous; Peak Overload Torque: 8.1 N·m (3× rated torque, 30s maximum overload duration)
• Rated Rotational Speed: 3000 rpm; Maximum Mechanical Speed: 6000 rpm
• Rotor Inertia: Ultra-low 0.00012 kg·m² for rapid cyclic acceleration
• Encoder Configuration: 20-bit absolute multi-turn optical encoder (1,048,576 position pulses per revolution), battery-free single-turn position retention
• Rated Input Voltage: Three-phase AC 230 V
• Rated Continuous Current: 13 A RMS
• Insulation Class: Class F (maximum allowable stator winding surface temperature 155°C)
• Protection Rating: IP65 motor housing and output shaft; IP54 electrical connector terminal area
• Operating Ambient Temperature: -20°C ~ +40°C; Maximum allowable motor surface operating temperature +100°C
• Vibration Resistance Standard: IEC 60068-2-6, 10–500Hz frequency sweep, 8g peak vibration acceleration
• Shock Resistance Standard: IEC 60068-2-27, 25g peak shock acceleration, 11ms shock pulse duration
• Mechanical Dimensions: Flange mounting 58mm square frame, output shaft diameter 14mm, motor overall axial length 30mm
• Net Weight: 1.2 kg
• Certifications: CE, UL 1004-1, IEC 60034-1, RoHS, ISO 13485 medical equipment compatibility certification

Material Composition & Structural Features

1. Motor Stator Housing: High-precision extruded aluminum alloy cylindrical housing with integrated axial cooling rib structure, hard anodized anti-corrosion surface treatment
2. Stator Winding Core: Silicon steel laminated stator core with high copper fill factor enameled copper wire windings impregnated with high-temperature epoxy varnish
3. Rotor Assembly: Rare-earth NdFeB permanent magnet surface-mounted rotor, balanced precision dynamic balancing treatment to eliminate high-speed vibration
4. Output Shaft & Sealing: 40Cr alloy steel quenched and tempered output shaft with standard flat key slot; nitrile rubber double-lip shaft oil seal to achieve IP65 dust and water spray resistance
5. Electrical Connection Structure: Dual independent quick-disconnect circular industrial connectors; one power connector for three-phase stator winding power transmission, one encoder connector for absolute encoder position signal feedback
6. Mounting Flange: Die-cast aluminum square mounting flange with four symmetrical M4 mounting bolt holes, flat precision machined flange mounting surface
7. Internal Bearings: Double-row high-precision sealed ceramic ball bearings at front and rear shaft ends, low friction coefficient for long high-speed service life

Working Principle

1. ELAU PacDrive servo drive outputs three-phase sinusoidal variable frequency variable amplitude alternating current to the motor stator three-phase windings
2. Three-phase alternating current generates rotating electromagnetic magnetic field inside the stator laminated core, rotating speed proportional to input AC frequency
3. Surface-mounted rare-earth permanent magnets on the rotor form fixed permanent magnetic poles; stator rotating magnetic field generates electromagnetic traction torque acting on rotor permanent magnets, driving rotor and output mechanical shaft to synchronously rotate with stator rotating magnetic field
4. 20-bit absolute multi-turn optical encoder installed at the motor rear shaft end synchronously captures real-time rotor absolute angular position and rotational speed data, transmits digital position feedback signal back to servo drive via dedicated encoder cable
5. Servo drive internal position loop, speed loop and current loop triple closed-loop control algorithm compares encoder actual position feedback value with motion control target position command value; dynamically adjusts output three-phase AC current amplitude and frequency to eliminate position deviation, realizing high-precision positioning and smooth speed regulation
6. When transient overload working conditions occur (machine rapid acceleration, impact load), the permanent magnet synchronous motor can output 3 times rated peak torque within 30 seconds to meet short-cycle high dynamic motion demand; built-in stator winding temperature thermistor continuously monitors winding temperature, triggers drive current limiting protection when winding temperature exceeds Class F insulation limit temperature

Application Scenarios

• High-speed horizontal/vertical packaging machinery: carton forming, bottle filling, sealing, labeling, film wrapping multi-axis motion axes
• Food processing automation equipment: pastry molding machine, beverage bottle sorting conveyor, food cutting positioning axis
• Light industrial delta parallel robots, SCARA four-axis assembly robots for electronic component sorting and assembly
• Printing and paper processing equipment: label printing press, paper slitting machine precision traction and cutting axes
• Pharmaceutical automatic blister packaging, tablet counting and bottle filling automation lines

Installation Requirements

1. Flange Mounting Surface Requirement: Machine frame mounting plane flatness error ≤ 0.1mm per 100mm length; thoroughly clean mounting surface metal burrs, dust and oil stains before installation
2. Mounting Bolt Torque Standard: Four M4 stainless steel flange mounting bolts tightened to fixed torque 4 N·m; strictly prohibit over-tightening bolts to avoid aluminum flange deformation and bearing shaft misalignment
3. Shaft Load Connection Standard: Connect motor output shaft to mechanical load only through zero-backlash flexible coupling; rigid direct shaft connection without coupling will generate radial and axial offset load, rapidly wearing front motor bearing
4. Cable Wiring Separation Rule: Separate motor three-phase power cable and encoder signal cable with minimum 20cm wiring spacing; power cable carries high-frequency high-current which generates strong electromagnetic interference, easily distorting encoder precise position signal
5. Connector Installation Sealing Requirement: Fully tighten both power and encoder circular quick-disconnect connectors after cable wiring; ensure built-in rubber sealing gaskets are fully compressed to maintain IP65 protection rating at connector joint surfaces
6. Heat Dissipation Installation Restriction: Do not install the motor in fully enclosed sealed cavities without air circulation; maintain minimum 30mm natural convection air gap around motor aluminum cooling housing

Operation & Maintenance Precautions

1. Startup Pre-Check Rule: Before servo system power-on, manually rotate motor output shaft by hand to confirm no mechanical jamming or excessive rotational resistance; mechanical stuck load will trigger servo drive over-current fault and risk stator winding burnout
2. Overload Duration Limit: Continuous peak torque overload operation exceeding 30 seconds is prohibited; long-term high overload will cause stator winding temperature to exceed Class F insulation limit, accelerating insulation aging and permanent magnet demagnetization
3. Shaft Seal Regular Inspection: Conduct quarterly visual inspection of output shaft nitrile rubber oil seal; if oil leakage, crack or hardening aging is observed, replace the shaft oil seal immediately to prevent dust and cooling water from penetrating into internal bearings and stator windings
4. Encoder Cable Maintenance: Avoid repeated bending, pulling or sharp-angle extrusion of the encoder signal cable; internal fine multi-turn encoder signal wires are fragile, cable damage will cause position feedback loss and servo out-of-control runaway risk
5. Long-Term Shutdown Storage: For motors stored as spare parts for more than 6 months, rotate the output shaft manually once per month to prevent bearing lubricating oil solidification and shaft rusting; store in temperature-controlled dry warehouse (10°C ~ 30°C, relative humidity ≤ 60%)
6. Winding Temperature Protection Response: If servo drive triggers motor over-temperature protection and shuts down motion axes, cut off servo power supply and allow the motor to naturally cool to ambient temperature; do not forcibly restart the system while the motor remains high-temperature to avoid permanent magnet irreversible demagnetization