2. Part Number Explanation

• A06B: FANUC servo motor series code.

• 0147: A22 frame size, medium inertia, rated speed 2000 rpm.

• B075: Straight shaft with keyway, no holding brake, Alpha A64 absolute encoder.

• #7008: Factory standard specification with IP54 protection and unsealed keyway shaft.

3. Electrical and Performance Parameters

• Rated Output Power: 3.8 kW.

• Rated Speed: 2000 rpm.

• Rated Voltage:  157 VAC (3-phase).

• Rated Frequency: 133 Hz.

• Continuous Rated Torque: 22 Nm.

• Rotor Inertia: Medium.

• Encoder: Alpha A64 high-resolution absolute encoder, 65536 pulses per revolution.

• Holding Brake: None.

• Insulation Class: Class F (155°C).

• Cooling Method: Natural air cooling.

• Stall Torque: 22 Nm.

• Stall Current: 19 A.

• Rated Current: 15 A.

4. Mechanical Structure and Dimensions

• Mounting Flange: Standard 110 mm square flange.

• Positioning Spigot Diameter: 95 mm.

• Mounting Holes: Four M8 bolts on an 85 mm pitch circle.

• Shaft Type: Straight shaft with keyway, unsealed.

• Shaft Diameter: 22 mm (1.375 inches).

• Approximate Weight: 29.5 kg (65 lbs).

5. Protection Grade and Environmental Requirements

• Protection Grade: IP54 (dust-protected and splash-proof).

• Operating Ambient Temperature: 0°C to +40°C.

• Storage Temperature: -20°C to +60°C.

• Relative Humidity: 10% to 90%, non-condensing.

• Altitude: Up to 1000 m above sea level.

• Vibration Resistance: Up to 4.9 m/s².

6. Product Features

• Medium Inertia Rotor: Balances dynamic response and load stability, suitable for frequent speed changes and variable loads.

• High-Resolution Absolute Encoder: Enables high-precision positioning without battery backup for absolute position memory.

• Robust Construction: Rigid housing and high-precision bearings ensure long life and low noise.

• IP54 Protection: Suitable for workshop environments with dust, oil mist, and splashing water.

• Compatibility: Fully compatible with FANUC Alpha i-B series servo amplifiers for direct replacement.

7. Installation Instructions

• Power Off: Disconnect all power before installation and wiring.

• Flange Mounting: Use four M8 bolts, tightened evenly to ensure flat mounting and concentricity.

• Coupling: Use a suitable coupling to connect the motor shaft to the load. Maintain coaxiality to avoid vibration and bearing damage.

• Shaft Load: Do not apply heavy impact or excessive radial/axial loads.

• Cabling: Use FANUC shielded power, encoder, and brake cables (if applicable). Route cables correctly, maintaining sufficient bending radii.

• Grounding: Properly ground the motor frame for electrical safety.

8. Operation Precautions

• Rated Limits: Do not exceed rated voltage, speed, or torque for extended periods to prevent overheating and demagnetization.

• No Brake: This model has no holding brake. Secure vertical loads externally when power is off.

• Environment: Avoid use in explosive, corrosive, or highly conductive dust environments.

• No Disassembly: Unauthorized disassembly of the motor or encoder voids the warranty.

• Abnormal Conditions: Stop operation immediately and cut power if abnormal noise, vibration, overheating, or servo alarms occur.

9. Maintenance and Storage

• Cleaning: Regularly remove dust and oil from the motor surface to maintain heat dissipation.

• Inspection: Periodically check mounting bolts, coupling tightness, and cable connections.

• Bearings: Factory-lubricated for life. Replace if abnormal noise occurs.

• Encoder: Check cable seals and connectors to maintain IP54 protection.

• Storage: Keep in a dry, clean, ventilated area (5°C to 35°C, ≤85% humidity, non-condensing). Use original packaging, avoid direct sunlight and heavy stacking.

10. Ordering Description

• Model Number: A06B-0147-B075#7008.

• Description: FANUC Alpha i A22/2000 AC servo motor, 3.8 kW, 2000 rpm, medium inertia, straight shaft with keyway (unsealed), no holding brake, Alpha A64 absolute encoder, IP54 protection grade.