The Fanuc A06B-0153-B076#7075 is a high-performance AC Servo Motor belonging to the Alpha (α) Series. Specifically, it is the α 30/3000 model, designed for high-precision motion control in CNC machine tools and industrial robotics. This motor is engineered to provide a high torque-to-inertia ratio, allowing for rapid acceleration and deceleration cycles. The “#7075” suffix typically denotes a specific shaft configuration, often involving a straight shaft with a keyway or a specialized mounting interface tailored for Fanuc-controlled machinery.
Product Technical Description
This motor is a brushless AC synchronous motor utilizing high-energy permanent magnets on the rotor. The Alpha series is recognized for its superior reliability and low maintenance requirements compared to traditional DC motors. It features an integrated high-resolution pulse coder (encoder) that provides precise position and speed feedback to the Fanuc Servo Amplifier. The motor is designed with an IP65 protection rating (excluding the shaft opening), ensuring resilience against oil, mist, and dust commonly found in machining environments. The B-65142E designation refers to the technical manual series providing detailed wiring and maintenance specifications for this generation of Alpha motors.
Product Datasheet & Parameters
- Model: α 30/3000
- Part Number: A06B-0153-B076#7075
- Rated Output: 7.0 kW (9.4 HP)
- Rated Speed: 3000 RPM
- Stall Torque: 30 Nm
- Input Voltage: 200-230V AC (Standard Alpha Series Drive)
- Insulation Class: Class F
- Feedback: Alpha i Pulse Coder (High Resolution)
- Shaft Type: Straight shaft with keyway (Standard for #7075)
- Cooling: Natural convection / Surface cooled
- Protection Rating: IP65
Country of Origin
This AC Servo Motor is manufactured by Fanuc Corporation in Japan.
Application Fields
- CNC Milling & Turning: Driving the X, Y, or Z axes for heavy-duty metal cutting.
- Injection Molding: Powering the clamping or injection mechanisms in all-electric molding machines.
- Industrial Robotics: Used in large-scale articulated robot arms for material handling and welding.
- Automotive Production: High-speed positioning in body-in-white assembly lines.
- Aerospace Machining: Precision contouring of large aluminum or titanium components.
Product Usage Instructions
When installing the A06B-0153-B076#7075, ensure that the motor is mounted securely to a rigid surface to minimize vibration. Before connecting the power cables (U, V, W phases), verify that the Fanuc Servo Amplifier is powered off. Use only Fanuc-certified shielded cables for the pulse coder to prevent signal interference. During initial setup, perform the “FSSB” initialization on the Fanuc CNC control to recognize the motor and pulse coder parameters. If the motor includes a built-in brake, ensure the 24V DC brake power is synchronized with the drive enable signal to prevent the motor from trying to rotate while the brake is engaged.
Common Questions & Answers (Q&A)
Q: Can this motor be used with third-party servo drives? A: While technically possible, Fanuc Alpha motors are proprietary and highly optimized for Fanuc Servo Amplifiers. Using third-party drives requires complex tuning and may result in loss of high-resolution feedback data.
Q: What should I do if the motor is overheating? A: First, check that the cooling fins are clean and free of oil or dust buildup. Second, verify that the motor is not being operated beyond its rated duty cycle or that the machine tool is not experiencing mechanical binding.
Q: How do I identify a pulse coder failure? A: A pulse coder error will typically trigger a 300, 360, or 368 alarm on the Fanuc CNC screen. Check the feedback cable for damage before assuming the motor’s internal encoder has failed.
Q: Is the shaft on this model tapered or straight? A: The B076 #7075 configuration is generally a straight shaft with a keyway. Always confirm dimensions with the Fanuc B-65142E manual for exact tolerances.
Similar Model Recommendations
- Fanuc A06B-0153-B075
- Fanuc A06B-0143-B076
- Fanuc A06B-0152-B076
- Fanuc A06B-0157-B075
- Fanuc α 22/3000 Series Motors



