FANUC AC Servo Motor A06B-0239-B500 General Description A06B-0239-B500 is a FANUC Alpha i series high performance AC servo motor. This model is equipped with straight shaft with keyway and built-in DC electromagnetic brake. It adopts permanent magnet synchronous motor structure, matched with high precision built-in encoder, featuring high torque density, fast dynamic response and stable running performance. It is widely used in CNC machine tools, industrial automation equipment and vertical axis applications that require power-off position holding. Main Technical Specifications Rated output power is 2.5kW, rated continuous torque 12Nm, rated speed 4000rpm. The motor adopts three-phase 200-240V AC power supply standard. Shaft structure is straight shaft with keyway. Integrated power-off holding brake is equipped for load locking when power cuts off. Built-in high resolution incremental encoder provides accurate speed and position feedback. Protection grade reaches IP65, with industrial sealed structure against dust, oil mist and cooling liquid. The motor is self-cooled by natural convection, insulation class F, overall weight about 12 kilograms. Product Features Compact overall structure with high torque output and small installation space occupation. Low inertia rotor design ensures rapid acceleration and deceleration response. Smooth rotation with low vibration and low noise during high speed operation. Built-in brake can reliably maintain shaft position and prevent sliding of vertical or inclined axis under power-off state. Sealed and dustproof structure adapts to harsh workshop working environment. Perfect compatibility with FANUC 0i, 30i and other mainstream CNC servo systems, easy parameter matching and system debugging. Long service life bearing configuration, stable long-term continuous operation. Application Scope Suitable for CNC machining centers, CNC lathes, grinding machines and other machine tool feed axes. Ideal for vertical lifting axis and mechanical sliding axis requiring anti-fall braking function. Applied to automated production lines, handling machinery and precision positioning automation equipment. Matched with FANUC servo drive system for industrial robot auxiliary axis and special machine tool transmission mechanism. Installation Guidelines Install the motor on rigid flat mounting base to avoid resonance and running vibration. Keep the mounting surface clean and flat, align the motor shaft with driven load with reasonable coaxiality, and use flexible coupling for connection. Fasten mounting bolts evenly with standard torque to prevent deformation of motor flange. Reserve enough space around the motor for heat dissipation and later maintenance operation. Wiring and Electrical Requirements All wiring work must be carried out under complete power cut-off state. Use original matched power cable, encoder cable and brake cable specified by FANUC. Standard connection of three-phase power line and protective grounding terminal must be reliable. Separate the encoder signal cable from power cable during wiring to avoid electromagnetic interference. Ensure all terminals are fastened tightly with good insulation and grounding performance. Strictly follow official wiring specifications of FANUC servo system. Working Environment Requirements Ambient operating temperature ranges from 0 degree Celsius to 40 degree Celsius. Storage temperature ranges from minus 20 degree Celsius to 60 degree Celsius. Working humidity is 5% to 95% relative humidity without condensation. Working altitude shall not exceed 1000 meters above sea level. The surrounding atmosphere shall be free of corrosive gas, explosive dust and serious oil mist pollution. Avoid continuous strong mechanical vibration and impact environment. Operation and Maintenance Instructions Do not run the motor beyond rated voltage, torque and speed range to prevent overload damage. Conduct no-load trial operation after installation to check abnormal noise, vibration and temperature rise. Monitor motor surface temperature during operation to ensure normal heat dissipation. Avoid excessive frequent start and stop to prevent overheating and mechanical wear. Regularly check mounting fastness, coupling state, encoder connector and cable aging condition. Keep motor surface clean, remove dust and oil dirt regularly. Do not disassemble the motor and encoder privately, otherwise it will affect precision and void warranty. Safety Precautions Only professional and qualified maintenance personnel are allowed to install, wire and maintain the motor. Cut off all power supply completely before disassembly, wiring and maintenance. Do not touch rotating shaft and live parts during motor running. Reliable grounding must be completed to prevent electric shock accident and reduce electromagnetic interference. Keep the motor away from flammable and high temperature heat source environment.