FANUC A06B-6079-H106 Servo Amplifier

The FANUC A06B-6079-H106 is a high-performance AC servo amplifier from the α series, optimized for axis drive applications in CNC machine tools. It operates from a three-phase 200 VAC input and delivers a continuous output current of 40 A, making it suitable for driving medium-to-large capacity servo motors for linear or rotary axes. The amplifier employs advanced current control and high-speed position/speed loops to achieve exceptional contouring accuracy and fast settling times. Its compact design, comprehensive protection, and seamless integration with FANUC CNCs make it a preferred choice for precision machining centers, lathes, and grinding machines.

Key Features

• High Output Current: 40 A continuous (peak 60 A) for driving powerful axis motors.

• Advanced Current Control: High-bandwidth current loop ensures smooth torque output and minimal ripple.

• High-Response Speed Loop: Fast speed response for quick acceleration/deceleration and precise positioning.

• Built-in Regeneration Resistor: Internal regenerative resistor for handling regenerative energy from decelerating axes.

• Multiple Feedback Options: Supports absolute and incremental encoders, as well as linear scale interfaces.

• Protection Features: Overcurrent, overvoltage, undervoltage, and overtemperature protection with diagnostic codes.

Technical Specifications

• Input Voltage: 3-phase 200 VAC (170–230 VAC), 50/60 Hz

• Rated Output Current: 40 A continuous, 60 A peak (for 5 s)

• Output Power: Typically 15 kW (depending on motor)

• Control Method: Sinusoidal PWM with field-oriented control

• Frequency Range: 0–400 Hz

• Feedback: Serial encoder (A/B phase or absolute) or linear scale

• Regeneration: Built-in resistor (external option for high inertia)

• Cooling: Forced air with temperature-controlled fan

• Operating Temperature: 0°C to +45°C (derating above 40°C)

• Certifications: CE, UL

Applications

The A06B-6079-H106 is used to drive feed axes in CNC machine tools such as machining centers, turning centers, and profile grinders. It is also employed in high-speed gantries, laser cutting machines, and other automation equipment requiring precise motion control. Its high current capability allows it to drive large motors for heavy-duty cutting, while its fast response ensures excellent surface finish and accuracy.

Integration and Configuration

The amplifier connects to FANUC CNCs via a high-speed serial bus, simplifying wiring and reducing cabinet space. Parameter setting is performed through the CNC interface or FANUC's servo tuning software. The amplifier's built-in auto-tuning function optimizes servo gains for the connected motor and load, ensuring optimal performance. Diagnostic LEDs and a 7-segment display provide real-time status and fault codes.

Reliability and Environmental Compliance

Designed for continuous industrial use, the amplifier meets IEC 61000-4 immunity standards and is tested for vibration and shock. Its IP20 protection rating allows installation in standard electrical cabinets. The unit is RoHS compliant and carries CE and UL marks for global acceptance.

With its robust construction and advanced control features, the FANUC A06B-6079-H106 servo amplifier delivers the precision and reliability required for high-performance axis control in modern CNC machine tools.