A06B-0117-B855#0049
May 13, 2026

A06B-0117-B855#0049

Product Instruction Manual Part Number: A06B-0117-B855#0049 English Version (No Images) 1. Product Overview 1.1 Product Type FANUC βiSR Low Inertia AC Servo Motor with Built-in Power-off Holding Brake, Special Custom Version for Robot Axis 1.2 Part Number Definition A06B: FANUC dedicated series code for servo motor and spindle motor 0117: Basic motor frame size, power grade and low-inertia electromagnetic structure B855: Integrated DC power-off brake, special shaft extension, flange mounting, dedicated encoder and mechanical structure configuration #0049: Special factory customized version code, dedicated parameter calibration for FANUC LR Mate robot matching and specific speed-torque characteristics 1.3 Product Description A06B-0117-B855#0049 is a compact, high-performance low-inertia AC servo motor developed for FANUC industrial robot joint axes and high-precision automation equipment. It adopts optimized low-inertia rotor and high-efficiency magnetic circuit design, featuring small size, light weight, fast acceleration and deceleration, high speed stability and low vibration noise. Built-in DC power-off holding brake can lock the motor shaft immediately when power is cut off, effectively preventing the robot joint from sliding and position offset, ensuring mechanical safety and position retention accuracy. The #0049 special version is factory calibrated with exclusive control parameters, perfectly matching FANUC LR Mate series robot drive system, supporting plug-and-play direct replacement without complex parameter modification. 1.4 Application Scope Special for FANUC LR Mate 200iD series robot 4th axis and 5th axis Small industrial robot joint drive High-precision compact automation transmission mechanism Micro high-speed positioning platform and light load handling equipment 2. Technical Specifications Rated Voltage: AC 200V class Rated Power: 0.12kW Rated Torque: 0.23N·m Max Speed: 6000rpm Encoder Type: 17-bit Absolute Encoder Brake Type: DC 24V Power-off Holding Brake Insulation Class: Class F Cooling Method: Natural Air Cooling Protection Grade: IP40 Operating Ambient Temperature: 0℃ ~ +40℃ Storage Temperature Range: -20℃ ~ +70℃ Relative Humidity: 10% ~ 90%, Non-condensing Installation Method: Standard Flange Mounting Motor Weight: Approximately 0.7kg EMC Performance: Industrial High Anti-interference Level Continuous Operation: Support 24-hour Long-term Stable Operation 3. Product Features Ultra-compact and lightweight design, perfectly adapted to the narrow installation space of robot joints. Low inertia rotor structure, fast dynamic response, excellent high-speed acceleration and deceleration performance. High torque density and stable output, suitable for frequent start-stop and precise positioning working conditions. Built-in 17-bit absolute encoder, power-off position memory, no need for mechanical zero return after power on. Integrated power-off holding brake, reliable locking after power failure, effectively preventing joint sliding and falling. Optimized electromagnetic design, low cogging torque, smooth operation at low speed and high speed without crawling or jitter. Industrial dust-proof and oil-proof structure, suitable for workshop industrial harsh working environment. #0049 dedicated robot version parameters, fully compatible with original robot drive system, direct replacement available. 4. Installation Instructions Cut off the total power supply of the robot or automation system before installation and maintenance. Inspect the motor appearance, flange surface, shaft and mounting hole for damage, deformation, rust or foreign matter. Align the motor flange with the mechanical mounting surface, fix it with standard mounting bolts, and tighten evenly to ensure mounting flatness and concentricity. Assemble the mechanical connection part, ensure the coaxiality of the motor shaft and the load shaft to avoid eccentric vibration and abnormal wear. Connect motor power cable, encoder cable and brake control cable strictly in accordance with the official wiring specification and pin definition. Arrange and fix all cables reasonably, avoid sharp bending, excessive stretching, heavy extrusion and crossing with high-voltage lines. Recheck all mechanical fastening bolts and wiring connections to ensure firm installation and correct wiring. Power on the system, complete servo initialization, robot axis calibration and no-load test operation. 5. Operation Precautions Do not operate beyond the rated voltage, rated speed and rated load range to prevent motor overheating, demagnetization and burnout. Avoid frequent rapid forward and reverse jogging for a long time, so as to reduce overcurrent impact and thermal overload of the motor. Do not use in environments with heavy dust, oil mist, corrosive gas, flammable gas or direct water splash. Keep reliable grounding for motor and equipment to prevent electric leakage and electromagnetic interference affecting positioning accuracy. Do not disassemble the motor shell, internal encoder, brake assembly and rotor structure without professional authorization. Stop operation and cut off power immediately if abnormal noise, vibration, overheating, shaft slipping or servo alarm occurs, and check after power failure. Do not apply external impact or heavy pressure on the motor shaft to prevent shaft deformation and internal encoder damage. 6. Maintenance and Storage Regularly clean the dust and oil stains on the motor surface, keep the motor heat dissipation surface clean and unobstructed. Periodically check the mounting bolts, mechanical connecting parts and cable connectors for looseness, and tighten them in time if loose. Regularly test the holding performance of the power-off brake to ensure no slipping phenomenon after power off. When storing, place in a dry, ventilated, dust-free indoor environment without corrosive gas. Storage ambient temperature: 5℃ ~ 35℃, relative humidity ≤ 85%, keep non-condensing. Avoid collision, extrusion, falling and long-term vertical pressure on the motor shaft during handling and storage. Shelf life: 12 months under original sealed packaging and standard storage conditions. 7. Quality Statement A06B-0117-B855#0049 complies with FANUC industrial manufacturing standards and electrical safety specifications. All products pass dynamic balance test, performance test, brake holding test and aging test before delivery. This manual is applicable to original and compatible replacement parts of A06B-0117-B855#0049 servo motor.

Description

Product Instruction Manual

Part Number: A06B-0117-B855#0049

English Version (No Images)

1. Product Overview

1.1 Product Type

FANUC βiSR Low Inertia AC Servo Motor with Built-in Power-off Holding Brake, Special Custom Version for Robot Axis

1.2 Part Number Definition

  • A06B: FANUC dedicated series code for servo motor and spindle motor

  • 0117: Basic motor frame size, power grade and low-inertia electromagnetic structure

  • B855: Integrated DC power-off brake, special shaft extension, flange mounting, dedicated encoder and mechanical structure configuration

  • #0049: Special factory customized version code, dedicated parameter calibration for FANUC LR Mate robot matching and specific speed-torque characteristics

1.3 Product Description

A06B-0117-B855#0049 is a compact, high-performance low-inertia AC servo motor developed for FANUC industrial robot joint axes and high-precision automation equipment.
It adopts optimized low-inertia rotor and high-efficiency magnetic circuit design, featuring small size, light weight, fast acceleration and deceleration, high speed stability and low vibration noise.
Built-in DC power-off holding brake can lock the motor shaft immediately when power is cut off, effectively preventing the robot joint from sliding and position offset, ensuring mechanical safety and position retention accuracy.
The #0049 special version is factory calibrated with exclusive control parameters, perfectly matching FANUC LR Mate series robot drive system, supporting plug-and-play direct replacement without complex parameter modification.

1.4 Application Scope

  • Special for FANUC LR Mate 200iD series robot 4th axis and 5th axis

  • Small industrial robot joint drive

  • High-precision compact automation transmission mechanism

  • Micro high-speed positioning platform and light load handling equipment

2. Technical Specifications

  • Rated Voltage: AC 200V class

  • Rated Power: 0.12kW

  • Rated Torque: 0.23N·m

  • Max Speed: 6000rpm

  • Encoder Type: 17-bit Absolute Encoder

  • Brake Type: DC 24V Power-off Holding Brake

  • Insulation Class: Class F

  • Cooling Method: Natural Air Cooling

  • Protection Grade: IP40

  • Operating Ambient Temperature: 0℃ ~ +40℃

  • Storage Temperature Range: -20℃ ~ +70℃

  • Relative Humidity: 10% ~ 90%, Non-condensing

  • Installation Method: Standard Flange Mounting

  • Motor Weight: Approximately 0.7kg

  • EMC Performance: Industrial High Anti-interference Level

  • Continuous Operation: Support 24-hour Long-term Stable Operation

3. Product Features

  1. Ultra-compact and lightweight design, perfectly adapted to the narrow installation space of robot joints.

  2. Low inertia rotor structure, fast dynamic response, excellent high-speed acceleration and deceleration performance.

  3. High torque density and stable output, suitable for frequent start-stop and precise positioning working conditions.

  4. Built-in 17-bit absolute encoder, power-off position memory, no need for mechanical zero return after power on.

  5. Integrated power-off holding brake, reliable locking after power failure, effectively preventing joint sliding and falling.

  6. Optimized electromagnetic design, low cogging torque, smooth operation at low speed and high speed without crawling or jitter.

  7. Industrial dust-proof and oil-proof structure, suitable for workshop industrial harsh working environment.

  8. #0049 dedicated robot version parameters, fully compatible with original robot drive system, direct replacement available.

4. Installation Instructions

  1. Cut off the total power supply of the robot or automation system before installation and maintenance.

  2. Inspect the motor appearance, flange surface, shaft and mounting hole for damage, deformation, rust or foreign matter.

  3. Align the motor flange with the mechanical mounting surface, fix it with standard mounting bolts, and tighten evenly to ensure mounting flatness and concentricity.

  4. Assemble the mechanical connection part, ensure the coaxiality of the motor shaft and the load shaft to avoid eccentric vibration and abnormal wear.

  5. Connect motor power cable, encoder cable and brake control cable strictly in accordance with the official wiring specification and pin definition.

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

  7. Recheck all mechanical fastening bolts and wiring connections to ensure firm installation and correct wiring.

  8. Power on the system, complete servo initialization, robot axis calibration and no-load test operation.

5. Operation Precautions

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

  2. Avoid frequent rapid forward and reverse jogging for a long time, so as to reduce overcurrent impact and thermal overload of the motor.

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

  4. Keep reliable grounding for motor and equipment to prevent electric leakage and electromagnetic interference affecting positioning accuracy.

  5. Do not disassemble the motor shell, internal encoder, brake assembly and rotor structure without professional authorization.

  6. Stop operation and cut off power immediately if abnormal noise, vibration, overheating, shaft slipping or servo alarm occurs, and check after power failure.

  7. Do not apply external impact or heavy pressure on the motor shaft to prevent shaft deformation and internal encoder damage.

6. Maintenance and Storage

  1. Regularly clean the dust and oil stains on the motor surface, keep the motor heat dissipation surface clean and unobstructed.

  2. Periodically check the mounting bolts, mechanical connecting parts and cable connectors for looseness, and tighten them in time if loose.

  3. Regularly test the holding performance of the power-off brake to ensure no slipping phenomenon after power off.

  4. When storing, place in a dry, ventilated, dust-free indoor environment without corrosive gas.

  5. Storage ambient temperature: 5℃ ~ 35℃, relative humidity ≤ 85%, keep non-condensing.

  6. Avoid collision, extrusion, falling and long-term vertical pressure on the motor shaft during handling and storage.

  7. Shelf life: 12 months under original sealed packaging and standard storage conditions.

7. Quality Statement

  1. A06B-0117-B855#0049 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-0117-B855#0049 servo motor.

  • 发那科11.jpg

2. Technical Specifications

  • Rated Voltage: AC 200V class

  • Rated Power: 0.12kW

  • Rated Torque: 0.23N·m

  • Max Speed: 6000rpm

  • Encoder Type: 17-bit Absolute Encoder

  • Brake Type: DC 24V Power-off Holding Brake

  • Insulation Class: Class F

  • Cooling Method: Natural Air Cooling

  • Protection Grade: IP40

  • Operating Ambient Temperature: 0℃ ~ +40℃

  • Storage Temperature Range: -20℃ ~ +70℃

  • Relative Humidity: 10% ~ 90%, Non-condensing

  • Installation Method: Standard Flange Mounting

  • Motor Weight: Approximately 0.7kg

  • EMC Performance: Industrial High Anti-interference Level

  • Continuous Operation: Support 24-hour Long-term Stable Operation

3. Product Features

  1. Ultra-compact and lightweight design, perfectly adapted to the narrow installation space of robot joints.

  2. Low inertia rotor structure, fast dynamic response, excellent high-speed acceleration and deceleration performance.

  3. High torque density and stable output, suitable for frequent start-stop and precise positioning working conditions.

  4. Built-in 17-bit absolute encoder, power-off position memory, no need for mechanical zero return after power on.

  5. Integrated power-off holding brake, reliable locking after power failure, effectively preventing joint sliding and falling.

  6. Optimized electromagnetic design, low cogging torque, smooth operation at low speed and high speed without crawling or jitter.

  7. Industrial dust-proof and oil-proof structure, suitable for workshop industrial harsh working environment.

  8. #0049 dedicated robot version parameters, fully compatible with original robot drive system, direct replacement available.

4. Installation Instructions

  1. Cut off the total power supply of the robot or automation system before installation and maintenance.

  2. Inspect the motor appearance, flange surface, shaft and mounting hole for damage, deformation, rust or foreign matter.

  3. Align the motor flange with the mechanical mounting surface, fix it with standard mounting bolts, and tighten evenly to ensure mounting flatness and concentricity.

  4. Assemble the mechanical connection part, ensure the coaxiality of the motor shaft and the load shaft to avoid eccentric vibration and abnormal wear.

  5. Connect motor power cable, encoder cable and brake control cable strictly in accordance with the official wiring specification and pin definition.

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

  7. Recheck all mechanical fastening bolts and wiring connections to ensure firm installation and correct wiring.

  8. Power on the system, complete servo initialization, robot axis calibration and no-load test operation.

5. Operation Precautions

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

  2. Avoid frequent rapid forward and reverse jogging for a long time, so as to reduce overcurrent impact and thermal overload of the motor.

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

  4. Keep reliable grounding for motor and equipment to prevent electric leakage and electromagnetic interference affecting positioning accuracy.

  5. Do not disassemble the motor shell, internal encoder, brake assembly and rotor structure without professional authorization.

  6. Stop operation and cut off power immediately if abnormal noise, vibration, overheating, shaft slipping or servo alarm occurs, and check after power failure.

  7. Do not apply external impact or heavy pressure on the motor shaft to prevent shaft deformation and internal encoder damage.

6. Maintenance and Storage

  1. Regularly clean the dust and oil stains on the motor surface, keep the motor heat dissipation surface clean and unobstructed.

  2. Periodically check the mounting bolts, mechanical connecting parts and cable connectors for looseness, and tighten them in time if loose.

  3. Regularly test the holding performance of the power-off brake to ensure no slipping phenomenon after power off.

  4. When storing, place in a dry, ventilated, dust-free indoor environment without corrosive gas.

  5. Storage ambient temperature: 5℃ ~ 35℃, relative humidity ≤ 85%, keep non-condensing.

  6. Avoid collision, extrusion, falling and long-term vertical pressure on the motor shaft during handling and storage.

  7. Shelf life: 12 months under original sealed packaging and standard storage conditions.

7. Quality Statement

  1. A06B-0117-B855#0049 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-0117-B855#0049 servo motor.


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