3. Technical Specifications

3.1 Electrical Ratings

• Continuous Output Power: 4.8 kW (6.4 HP)

• Rated Torque: 30 Nm (265 lbf-in)

• Rated Speed: 3000 rpm

• Maximum Speed: 3000 rpm

• Stall Torque: 30 Nm

• Rated Current (3-phase): 17 A

• Rated Voltage (3-phase): 168 VAC @ 200 Hz

• Back-EMF Constant: 52 V/krpm

• Winding Resistance (Phase-to-Phase): 0.28 Ω @ 20°C

• Insulation Class: F (155°C)

3.2 Mechanical Specifications

• Shaft Type: Straight cylindrical shaft (35 mm diameter) with keyway

• Brake: Not equipped (no brake)

• Encoder: A64 absolute encoder (65536 ppr, single-turn)

• Rotor Inertia: 0.019 kg·m²

• Weight: 38 kg (83.8 lbs)

• Protection Class: IP67 (dust-tight, waterproof)

• Ambient Temperature: 0°C to +40°C (operation); -20°C to +60°C (storage)

• Cooling Method: Natural convection (self-cooled)

4. Performance Characteristics

4.1 Speed-Torque Curve

• Continuous Operation Zone: 0–3000 rpm, 30 Nm maximum continuous torque

• Intermittent Operation Zone: 6-minute ON / 4-minute OFF cycle, up to 150% rated torque

• Maximum Torque: 90 Nm (peak, short-duration)

4.2 Encoder Feedback

• Resolution: 65536 pulses per revolution (ppr)

• Absolute Encoder (A64): Maintains position data without external battery, supports multi-turn position tracking

5. Installation Dimensions (Key Data)

• Flange Size: 190 mm × 190 mm (square)

• Shaft Diameter: 35 mm

• Keyway: 10 mm × 8 mm (standard)

• Mounting Holes: 4 × M12 (flange-mounted)

• Motor Length: 270 mm (no brake)

6. Wiring & Connections

6.1 Power Connector (3-phase)

• Terminals: U, V, W (motor windings); PE (protective earth)

• Cable Size: 4 mm² (minimum)

6.2 Encoder Connector

• Type: 20-pin circular connector

• Signals: +5 V power, 0 V ground, serial communication (A64 absolute encoder data)

7. Safety Precautions

1. Electrical Safety: Disconnect all power before wiring or maintenance.

2. Mechanical Safety: Ensure the motor is securely mounted before operation; avoid overload during high-speed operation.

3. Overheating: Do not operate beyond ambient temperature or duty-cycle limits; ensure adequate ventilation.

4. Modification: Do not disassemble or modify the motor; contact FANUC for repairs.

5. Protection: IP67 protection, but avoid long-term immersion in water or exposure to corrosive liquids.

8. Maintenance

• Lubrication: Bearings are pre-greased; no maintenance required for 20,000 hours (typical).

• Inspection: Periodically check for loose connections, abnormal noise, or vibration.

• Insulation Resistance: Measure between windings and frame with 500 VDC megger; minimum 100 MΩ.

• Encoder Care: Keep encoder connector clean and dry; avoid static electricity damage.

9. Compatible Drives

• FANUC αi Series Servo Amplifiers (e.g., αi-B, αi-C)

• FANUC βi Series Servo Amplifiers (with adapter)

10. Typical Applications

• CNC machining centers, high-speed lathes, and milling machines

• Industrial robot joints (medium-payload, high-speed)

• Gantry systems and high-speed linear motion axes

• Automated assembly and packaging machinery

• High-speed spindle auxiliary drives