FANUC AC Servo Motor α30/1200 Series

Model: A06B-0151

(English Specification Manual, No Images)

1. General Description

2. Model Number Interpretation

• A06B: FANUC servo motor series prefix

• 0151: α30/1200 series identifier

• Suffix (common variants):

  • B075: Straight shaft, no brake, A64 absolute encoder

  • B077: Straight shaft, no brake, I64 incremental encoder

  • B175: Straight shaft with keyway, 2 Nm brake, A64 encoder

  • B176: Straight shaft with keyway, high‑precision bearings, A64 encoder

  • B177: Straight shaft with keyway, 2 Nm brake, I64 encoder

3. Technical Specifications

3.1 Electrical Ratings

• Continuous Output Power: 3.3 kW (4.4 HP)

• Rated Torque: 30 Nm (265 lbf‑in)

• Rated Speed: 1200 rpm

• Maximum Speed: 1200 rpm

• Stall Torque: 30 Nm

• Rated Current (3‑phase): 17 A

• Rated Voltage (3‑phase): 168 VAC @ 120 Hz

• Back‑EMF Constant: 83 V/krpm

• Winding Resistance (Phase‑to‑Phase): 0.34 Ω @ 20°C

• Insulation Class: F (155°C)

3.2 Mechanical Specifications

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

• Brake (optional): 2 Nm holding brake (spring‑applied, electrically released)

• Encoder:

  • A64: 65536‑pulse absolute encoder (single‑turn)

  • I64: 65536‑pulse incremental encoder

• Rotor Inertia: 0.028 kg·m²

• Weight: 41 kg (90.4 lbs)

• Protection Class: IP65 (dust‑tight, splash‑proof)

• 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: 0–1200 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

• Incremental Encoder (I64): Requires home position reference on power‑up

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 (without brake): 285 mm

• Motor Length (with brake): 325 mm

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: Power (+5 V, 0 V), A/B/Z pulses (incremental) or serial data (absolute)

6.3 Brake Connector (if equipped)

• Voltage: 24 VDC ±10%

• Current: 0.8 A (typical)

• Terminals: BRK+, BRK−

7. Safety Precautions

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

2. Mechanical Safety: Ensure the motor is securely mounted before operation.

3. Brake Operation: The holding brake is not a safety brake; do not use it for personnel protection.

4. Overheating: Do not operate beyond ambient temperature or duty‑cycle limits.

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

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.

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, lathes, and milling machines

• Industrial robot joints (medium‑payload)

• Gantry systems and linear motion axes

• Automated assembly and packaging machinery