Main Technical Specifications

• Model: A06B-0273-B500 (AiS40/4000HV)

• Rated Continuous Output Power: 7.5 kW

• Rated Continuous Torque: 48 Nm

• Rated Speed: 2000 rpm; Maximum Speed: 4000 rpm

• Rated Voltage: Three‑phase 408 V AC (400–480 V system)

• Rated Current: 11.5 A; Peak Current: 34.5 A

• Frequency: 200 Hz

• Encoder: Built‑in aiA1000 incremental encoder

• Shaft: Straight shaft (ST) with keyway (KEY)

• Brake: 24 V DC electromagnetic holding brake

• Protection Class: IP67 (dust‑tight, splash‑proof)

• Insulation Class: F (155 °C)

• Cooling: Natural convection (self‑cooled)

• Approximate Weight: 30 kg

• Power Supply: 400–480 V ~, 3‑phase, 50/60 Hz

Product Features

• High‑Voltage Operation: Optimized for 400–480 V AC systems, reducing current and enabling longer cable runs.

• High Torque Density: 48 Nm continuous torque in a compact frame, suitable for heavy feed axes and high‑load applications.

• Straight Shaft with Keyway: Ensures secure load connection and precise torque transmission, simplifying installation.

• 24V DC Holding Brake: Provides reliable static holding power to prevent load movement during power‑off or idle states.

• High‑Resolution Encoder: Built‑in aiA1000 encoder delivers accurate position and speed feedback for precise motion control.

• Rugged IP67 Construction: Protects against dust, coolant, and oil mist in harsh industrial environments.

• Low Rotor Inertia: Enables fast acceleration/deceleration for high‑speed machining and dynamic motion control.

• Wide System Compatibility: Matches FANUC 0i‑D, 30i‑B series CNC and αi‑B series 400V servo amplifiers.

• High Durability: Sealed bearings and F‑class insulation ensure long‑term stable operation in demanding conditions.

Application Scope

• CNC Machine Tools: High‑speed machining centers, CNC lathes, and heavy‑duty feed axes requiring holding brakes.

• High‑Voltage Automation: Gantry systems, vertical linear motion platforms, and packaging machinery requiring 400V power.

• Industrial Robotics: Robot arms, vertical axes, and auxiliary axes in high‑voltage automation cells.

• Special Machines: Material handling equipment, process machinery, and automation lines with high‑speed, high‑load, and holding requirements.

Installation Instructions

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

• Keep the mounting surface clean, flat, and free of debris or deformation.

• Align the straight shaft with the load; use a flexible coupling to compensate for minor misalignment.

• Tighten flange bolts evenly to the specified torque to prevent housing distortion.

• Reserve sufficient clearance around the motor for natural heat dissipation and maintenance access; do not block cooling fins.

• Ensure the brake wiring is properly connected to a 24 V DC power source for reliable holding functionality.

Wiring Requirements

• Perform all wiring with the power disconnected; 400V poses an electric shock risk.

• Use FANUC‑approved power, encoder, brake, and ground cables.

• Connect the three‑phase power lines (U, V, W) and protective earth (PE) securely.

• Route encoder signal cables separately from main power cables to avoid electromagnetic interference (EMI).

• Connect the 24 V DC brake wires to a dedicated power supply; ensure correct polarity to avoid brake damage.

• Ensure all wiring terminals are tightly fastened with good insulation performance (≥100 MΩ at 500 VDC).

• Follow FANUC’s official standard wiring specifications for servo motor connections.

Working Environment

• Operating Temperature: −10 °C to +40 °C

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

• Humidity: 5%–95% RH (non‑condensing)

• Altitude: ≤1000 m (derate output above 1000 m)

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

• Vibration: ≤5G (avoid long‑term strong mechanical vibration and impact)

Operation Guidelines

• Operate the motor strictly within rated voltage, torque, and speed limits; do not overload continuously.

• Perform a no‑load trial run after installation to check for abnormal noise, vibration, or excessive temperature rise.

• Monitor the motor housing temperature during operation; ensure surface temperature ≤100 °C.

• Avoid excessive start‑stop cycles to prevent overheating and mechanical wear.

• Set servo amplifier parameters correctly based on the motor model and actual load conditions.

• Energize the brake only when the motor is stationary; do not use the brake for dynamic stopping.

Maintenance Instructions

• Regularly cut off the power and clean dust, oil stains, and coolant from the motor housing.

• Periodically check the mounting bolts, coupling tightness, encoder connectors, and brake wiring for security.

• Listen for abnormal bearing noise and inspect for excessive vibration during operation.

• Regularly use the CNC system’s diagnostic function to check encoder signal quality and positioning stability.

• Test the brake holding force periodically to ensure reliable performance.

• Do not disassemble the motor, brake, or encoder privately; this will damage precision components and void the warranty.

Safety Precautions

• Only qualified personnel trained in 400V systems may install, wire, or maintain the motor.

• Disconnect all power before maintenance or wiring work; wait for capacitors to fully discharge.

• Never touch the rotating shaft or live electrical components during motor operation.

• Ensure reliable grounding to prevent electric shock and reduce EMI.

• Do not modify the motor’s internal structure, brake circuit, or encoder configuration arbitrarily.

• Keep the motor and cables away from flammable materials and high‑temperature heat sources.

• Ensure the brake is fully released before motor operation to avoid overheating and damage.