A06B-0062-B503
May 13, 2026

A06B-0062-B503

1. Product Overview 1.1 Product Type FANUC AC Servo Motor with Power-off Holding Brake 1.2 Code Explanation A06B: FANUC servo motor and spindle motor general series code 0062: Base motor model, defines frame size, power grade and overall mechanical structure B503: Configuration with built-in power-off brake, shaft standard, flange mounting and encoder specification 1.3 Product Description A06B-0062-B503 is a high-performance AC servo motor integrated with power-off brake, designed for FANUC CNC machine tools and industrial automation equipment. It adopts high-efficiency magnetic circuit and optimized rotor structure, featuring high torque density, low vibration, low noise and smooth speed regulation. The built-in power-off brake locks the motor shaft instantly when power is cut off, effectively preventing sliding and falling of vertical and inclined axes, ensuring mechanical position retention and equipment operation safety. 1.4 Application Scope Suitable for CNC machining centers, vertical machine tools, CNC lathes, drilling and tapping machines, robot joint axes and automated production lines. Especially applicable to vertical feed axes and mechanical structures requiring anti-drop holding function.

Description

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2. Technical Specifications

  • Rated voltage: AC 200V class

  • Insulation class: Class F

  • Cooling method: Natural air cooling

  • Operating ambient temperature: 0℃ ~ +55℃

  • Storage temperature range: -20℃ ~ +70℃

  • Relative humidity: 10% ~ 90%, non-condensing

  • Protection grade: Industrial dust-proof and oil-proof, suitable for harsh workshop environment

  • Brake type: DC power-off holding brake

  • Installation method: Standard flange mounting

  • Insulation performance: Complies with international industrial electrical safety standards

3. Product Features

  1. Integrated power-off brake design, automatic locking after power failure, reliable anti-drop and position holding performance.

  2. High power density and strong overload capacity, stable torque output at low speed and high speed.

  3. Built-in high-resolution encoder, realizing high-precision closed-loop positioning and repeated positioning accuracy.

  4. Optimized low cogging torque design, smooth low-speed operation without crawling and jitter.

  5. Industrial-grade insulation and sealing structure, excellent dustproof, oil resistance and long service life.

  6. Standard mounting dimensions, fully compatible with FANUC servo drive system, direct plug-and-play replacement and easy parameter debugging.

4. Installation Instructions

  1. Cut off the total power supply of machine tool and servo system before installation.

  2. Inspect motor appearance, flange, shaft and keyway for no damage, deformation or rust.

  3. Fix the motor on the mechanical mounting surface with standard bolts, tighten evenly to ensure mounting flatness.

  4. Install the coupling correctly, ensure high coaxiality between motor shaft and load shaft to reduce vibration and abnormal wear.

  5. Connect motor power cable, encoder cable and brake control cable strictly according to wiring specifications.

  6. Arrange cables reasonably, avoid sharp bending, heavy extrusion and crossing with high-voltage lines.

  7. After installation, recheck mechanical fastening and all wiring connections.

  8. Power on the system, perform servo initialization, origin calibration and no-load test operation.

5. Operation Precautions

  1. Do not operate beyond rated voltage, speed and load range to prevent motor overheating and burnout.

  2. Avoid frequent forward and reverse jogging in a short time to reduce overcurrent impact and thermal overload.

  3. Do not use in environments with heavy dust, oil mist, corrosive gas and water splash.

  4. Keep reliable equipment grounding to prevent electric leakage and electromagnetic interference.

  5. Do not disassemble motor, brake assembly and internal encoder without professional authorization.

  6. If abnormal noise, vibration, overheating or shaft slipping occurs, stop operation and cut off power immediately for inspection.

6. Maintenance and Storage

Clean motor surface dust and oil stains regularly, keep heat dissipation surface unobstructed.
Periodically check mounting bolts, coupling tightness and cable connector looseness.
Regularly verify brake holding performance to ensure no slipping after power off.
Store in dry, ventilated, dust-free indoor environment without corrosive gas.
Storage temperature: 5℃ ~ 35℃, relative humidity ≤ 85%, keep non-condensing.
Avoid collision, extrusion and forced deformation of motor shaft.
Shelf life: 12 months under original sealed packaging and standard storage conditions.

7. Quality Statement

  1. A06B-0062-B503 complies with FANUC industrial manufacturing standards and electrical safety specifications.

  2. All products pass dynamic balance test, performance test, brake holding test and aging test before delivery.

  3. This manual is applicable to original and compatible replacement parts of A06B-0062-B503 servo motor.


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