FANUC AC Servo Motor A06B-0247-B200 – Detailed Specification & Instruction 1. General Information Model Number: A06B-0247-B200 Series: Alpha i (AiF) Sealed AC Servo Motor Designation: AiF22/3000 Manufacturer: FANUC CORPORATION Type: Three‑phase, synchronous, permanent‑magnet AC servo motor Shaft Configuration: Straight shaft with keyway (ST, KY) Encoder: Built‑in high‑resolution incremental encoder (a1000) Enclosure: Sealed industrial construction, IP67 protection for harsh environments 2. Technical Specifications Electrical Data Rated Output Power: 4.0 kW Rated Torque: 22 Nm (continuous) Peak Torque: 66 Nm (short‑term) Rated Speed: 3000 min⁻¹ Maximum Speed: 3500 min⁻¹ Rated Voltage: 3‑phase 230 V AC Rated Current: 11 A Insulation Class: F (155 °C) Protection Class: IP67 (IEC 60529) Cooling Method: Natural convection (self‑cooled) Mechanical Data Shaft: Straight ø24 mm with keyway Mounting Flange: Standard IEC/ISO flange Approximate Weight: 19 kg Vibration Grade: Vibration class A Noise Level: ≤70 dB(A) at 1 m (no load) 3. Construction and Components Stator: High‑efficiency laminated core with vacuum‑impregnated windings, ensuring high dielectric strength and reliability. Rotor: Rare‑earth permanent magnet design, delivering high torque density and low inertia for fast dynamic response. Shaft and Bearings: Precision‑ground alloy steel shaft paired with heavy‑duty deep‑groove ball bearings, providing long service life and minimal runout. Encoder System: Integrated a1000 incremental encoder offering high‑resolution position and speed feedback for precise motion control. Housing: Robust aluminum alloy housing with optimized heat dissipation, fully sealed to IP67 to resist dust, coolant, and oil mist. 4. Features and Benefits Sealed IP67 Design: Reliable performance in harsh workshop environments with coolant splash, dust, and oil mist. High Torque Density: Compact dimensions with 22 Nm continuous torque, saving installation space. Fast Dynamic Response: Low rotor inertia enables rapid acceleration/deceleration, ideal for high‑speed contouring and positioning. Smooth Operation: Optimized magnetic circuit design minimizes torque ripple, vibration, and noise during operation. High‑Reliability Feedback: Built‑in a1000 encoder ensures accurate position and speed control for high‑precision applications. Wide Compatibility: Fully compatible with FANUC 0i, 30i/31i/32i series CNC systems and αi‑B series servo amplifiers. 5. Application Scope CNC Machine Tools: Machining centers, vertical lathes, and heavy‑duty machine tool feed axes. Precision Positioning: Gantry systems, linear motion platforms, and automation equipment requiring high accuracy. Industrial Robots: Heavy‑payload robot joints and auxiliary axes. General Automation: Packaging machinery, material handling systems, and special‑purpose machines. Harsh Environment Applications: Machine tools with heavy coolant usage and dusty production lines. 6. Installation Instructions Mechanical Installation Mount the motor on a rigid, flat, vibration‑free base to prevent resonance and misalignment. Ensure the mounting surface is clean, flat, and free of debris. Align the motor shaft with the driven load (e.g., ballscrew, gearbox) within specified tolerance; use a flexible coupling to compensate for minor misalignment. Tighten mounting bolts evenly to the recommended torque value to avoid flange distortion. Maintain sufficient clearance around the motor for airflow, heat dissipation, and maintenance access. Electrical Wiring Disconnect and lock out all power sources before wiring. Use only FANUC‑approved power cables, encoder cables, and ground cables. Connect the three‑phase power lines (U, V, W) and protective earth (PE) securely. Route encoder cables separately from power cables to avoid electromagnetic interference; maintain minimum separation distance as specified. Verify all connections are tight and insulated; ensure proper grounding to prevent electric shock and reduce noise. Follow the wiring diagram provided in the FANUC servo amplifier and motor manual. 7. Operating Environment Ambient Temperature: 0 °C to +40 °C (operation); −20 °C to +60 °C (storage, non‑condensing) Humidity: 5 % to 95 % RH (non‑condensing) Altitude: ≤1000 m above sea level (derate output above 1000 m) Atmosphere: Free from corrosive gases, explosive dust, and excessive oil mist Vibration: ≤0.5 g (continuous); ≤1 g (intermittent) 8. Operation Guidelines Operate the motor within rated voltage, current, torque, and speed limits; avoid continuous overload. Perform a no‑load test run after installation to check for abnormal noise, vibration, or temperature rise. Monitor motor housing temperature during operation; surface temperature must not exceed 100 °C. Avoid excessive frequent start‑stop cycles to prevent overheating and mechanical wear. Ensure servo amplifier parameters are correctly set to match the motor model and load conditions. 9. Maintenance and Inspection Regular Inspection (Monthly/Quarterly) Clean motor housing to remove dust, oil, or coolant buildup (power off first). Check mounting bolts and coupling tightness. Inspect encoder cable connectors for damage, looseness, or corrosion. Listen for abnormal bearing noise and check for excessive vibration during operation. Confirm normal operating temperature and absence of unusual odor. Periodic Maintenance (Every 6–12 Months) Inspect bearing grease condition; re‑grease or replace bearings if noise or roughness occurs. Check shaft key and keyway for wear or deformation. Verify encoder signal quality via CNC diagnostic functions. Clean cooling fins and ventilation paths if necessary. Perform a full load test to confirm torque and speed accuracy. Lubrication Bearings: Sealed, lifetime‑lubricated type under normal use; re‑lubricate only in heavy‑dust or high‑humidity environments with FANUC‑specified grease. 10. Troubleshooting (Common Issues) Motor fails to start: Check power supply, wiring connections, servo amplifier enable signal, and CNC alarm codes. Abnormal noise/vibration: Inspect bearing condition, shaft alignment, coupling tightness, and mounting rigidity. Excessive temperature rise: Check for overload, blocked ventilation, incorrect parameter settings, or phase imbalance. Positioning error or drift: Verify encoder connection, cable shielding, grounding, and encoder resolution settings. Servo alarm (overcurrent/overvoltage): Check load condition, wiring, power supply stability, and amplifier‑motor compatibility. 11. Safety Precautions Only qualified personnel shall install, wire, maintain, or repair the motor. Disconnect and lock out all power sources before performing any work on the motor or wiring. Never touch rotating parts or live electrical components during operation. Ensure proper grounding to prevent electric shock and reduce electromagnetic noise. Do not modify or disassemble the motor or encoder; this voids the warranty and may cause malfunction or injury. Keep the motor and cables away from flammable materials and heat sources. 12. Reference Information Compatible Amplifiers: FANUC αi‑B series servo amplifiers Compatible CNC Systems: FANUC 0i‑D, 0i‑MF, 30i/31i‑B series Related Manuals: FANUC AC Servo Motor Manual (B‑65290EN), FANUC Servo Amplifier Manual (B‑65291EN)