Main Technical Specifications

• Series: α1 (Alpha 1/3000) compact AC servo motor

• Model: A06B-0371-B577#7008 (with brake, TPR shaft, #7008 encoder)

• Rated Continuous Power: 0.3 kW

• Rated Continuous Torque: 1.0 Nm

• Maximum Torque: 3.0 Nm

• Rated Speed: 3000 rpm

• Maximum Speed: 3000 rpm

• Rated Voltage: Three-phase 90 V AC (200 Hz)

• Rated Current: 2.5 A

• Peak Current: 5.5 A

• Feedback Encoder: αi64 incremental, 2500 ppr, #7008 special spec (enhanced noise immunity)

• Shaft: Tapered (TPR) with keyway

• Brake: Integrated 24 V DC holding brake (static holding only)

• Cooling: Natural convection (self-cooled)

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

• Insulation Class: F (155 °C)

• Rotor Inertia: 0.00021 kg·m²

• Approximate Weight: 3.5–4.0 kg

Product Features

• Compact & Lightweight: Small frame and 3.5–4.0 kg weight save installation space and reduce mechanical load.

• High Torque Density: 1.0 Nm continuous torque at 3000 rpm for high-speed, light-to-medium load tasks.

• Tapered Shaft with Keyway: Ensures zero-backlash coupling and reliable motion transmission.

• 24 V DC Holding Brake: Maintains load position during power-off; prevents vertical-axis drift.

• #7008 Enhanced Encoder: 2500 ppr incremental encoder with improved shielding for harsh EMI environments.

• IP65 Protection: Resists dust, coolant, and oil mist for workshop reliability.

• Low Inertia Rotor: Fast acceleration/deceleration (0–3000 rpm in <10 ms) and smooth low-speed operation.

• αiSV Amplifier Compatibility: Matches FANUC αiSV 90 V servo amplifiers and 0i‑C/D CNC systems.

Application Scope

• CNC Machine Tools: Small CNC lathes, milling machines, and vertical machining centers (X/Y/Z feed axes).

• Industrial Robotics: Light-duty robot arms, SCARA robots, and gantry robots with compact joint requirements.

• Automation Equipment: Packaging machinery, material handling, and assembly lines needing precise positioning.

• Special Machinery: Laser markers, precision stages, and test equipment with limited space and high EMI.

Installation Instructions

• Mount on a rigid, flat base to avoid resonance and shaft misalignment.

• Keep mounting flange clean and flat for full contact.

• Align tapered shaft with load; use a dedicated TPR coupling to prevent slippage.

• Tighten flange bolts evenly to 2.8 Nm to avoid housing distortion.

• Reserve 50 mm clearance around the motor for ventilation, wiring, and maintenance.

• Verify brake functionality (24 V DC) before applying load.

Wiring Requirements

• Disconnect all power before wiring to avoid electric shock.

• Use FANUC-approved power, encoder, brake, and ground cables (AWG18–20).

• Connect three-phase power (U, V, W), PE, and 24 V DC brake terminals securely.

• Route encoder cables separately from power/brake cables (≥10 cm) to minimize EMI.

• Follow FANUC wiring diagrams for correct encoder polarity and brake operation.

• Torque terminal screws to 1.2 Nm to prevent loose connections.

Working Environment

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

• Storage Temperature: −20 °C to +60 °C (non-condensing)

• Humidity: ≤80% RH (non-condensing)

• Altitude: ≤1000 m (derate 1% per 100 m above 1000 m)

• Atmosphere: Free of corrosive gases, explosive dust, or excessive oil mist

Maintenance Instructions

• Every 3 Months: Disconnect power; clean dust/oil from housing and brake assembly with a dry cloth.

• Every 6 Months: Check mounting bolts, coupling tightness, encoder connectors, and brake wiring.

• Every 12 Months: Inspect bearings for noise/vibration; replace if worn.

• Monthly (Brake Models): Test brake holding torque and release under no-load conditions.

• Quarterly: Use CNC diagnostics to verify encoder signal quality and position stability.

• No Unauthorized Disassembly: Do not open motor, encoder, or brake; voids warranty.

Safety Precautions

• Only qualified personnel may install, wire, or maintain the motor and brake system.

• Disconnect all power (main and brake) before maintenance; wait 5 minutes for capacitors to discharge.

• Never touch rotating shafts, live components, or brake parts during operation.

• Ensure reliable grounding (≤4 Ω) to prevent electric shock and reduce EMI.

• Do not modify internal structure, encoder configuration, or brake wiring.

• The holding brake is for static holding only; do not use for dynamic braking or emergency stops.