Main Technical Specifications

• Series: 0S (S-series) digital AC servo motor

• Rated Continuous Torque: 2.9 Nm

• Rated Speed: 2000 rpm or 3000 rpm (model-dependent)

• Maximum Speed: Up to 5000 rpm

• Rated Voltage: Three-phase 91 V AC

• Rated Current: 4.2 A

• Feedback Encoder: Incremental (2500 ppr / 10000 ppr) or absolute (2000 ppr)

• Shaft Type: Straight shaft (ST) or tapered shaft (TPR), with keyway

• Brake Option: With or without 24 V DC holding brake

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

• Insulation Class: F (155 °C)

• Approximate Weight: 10 kg

Product Features

• High Torque Density: Delivers 2.9 Nm continuous torque in a compact frame, ideal for medium-load, high-precision applications.

• Multiple Encoder Options: Available with high-resolution incremental (2500/10000 ppr) or absolute (2000 ppr) encoders for precise position and speed feedback.

• Shaft Flexibility: Choose straight or tapered shaft designs to accommodate different coupling and load requirements.

• Optional Holding Brake: Select models include a 24 V DC brake to maintain position during power-off, preventing drift in vertical axes.

• IP65 Sealed Construction: Protects against dust, coolant, and oil mist, ensuring reliability in harsh workshop environments.

• Robust & Durable: Heavy-duty bearings and high-quality components ensure long service life and consistent performance.

• Digital PWM Control: Optimized for FANUC S-series servo amplifiers, enabling smooth, quiet operation and fast dynamic response.

Application Scope

• CNC Machine Tools: Medium-duty CNC lathes, milling machines, and machining centers for feed and auxiliary axes.

• Industrial Automation: Packaging machinery, material handling systems, and assembly lines requiring precise positioning.

• Precision Motion Stages: Laser processing equipment, automated testing machines, and high-speed positioning platforms.

• Special Machinery: Custom automation equipment and machine retrofits needing reliable, medium-power servo motion control.

Installation Instructions

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

• Keep the mounting flange clean and free of debris to ensure full contact.

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

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

• Reserve adequate space around the motor for ventilation, encoder/brake wiring, and maintenance access.

Wiring Requirements

• Perform all wiring with the power supply disconnected to prevent electric shock.

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

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

• Route encoder signal cables separately from power and brake cables to minimize electromagnetic interference.

• Follow FANUC’s official wiring diagram to ensure correct encoder and brake polarity.

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 (output derating required above 1000 m)

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

Maintenance Instructions

• Regularly disconnect power and clean dust and oil contamination from the motor housing.

• Periodically check mounting bolts, coupling tightness, and encoder/brake connector security.

• Listen for abnormal bearing noise during operation; replace bearings if noise or vibration occurs.

• Test brake function monthly (if equipped) to verify holding torque and release operation under no-load conditions.

• Use the CNC system’s diagnostic tools to monitor encoder signal quality and position stability.

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

Safety Precautions

• Only qualified personnel may install, wire, or maintain the motor and associated components.

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

• Never touch the rotating shaft, live electrical parts, or brake components during operation.

• Ensure reliable grounding to prevent electric shock and reduce electromagnetic interference.

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

• The holding brake (if equipped) is for static position retention only; do not use for dynamic braking or emergency stops.