FANUC CNC Dual-Axis Servo Amplifier A06B-6117-H203 αi SV 4/20

The FANUC CNC Dual-Axis Servo Amplifier A06B-6117-H203 αi SV 4/20 is a high-performance, compact servo drive designed for integrated control of two servo axes in CNC machinery, robotics, and industrial automation systems. As part of FANUC's αi SV series, this amplifier combines advanced control technologies with modular design principles to deliver exceptional precision, dynamic responsiveness, and operational reliability in multi-axis applications.

Key Specifications and Features

• Model: A06B-6117-H203
• Series: αi SV 4/20 (Dual-Axis Configuration with Asymmetric Power Ratings)
• Rated Output Current:
  • Axis 1: 4Arms (continuous), 8Arms (peak, 100ms)
  • Axis 2: 20Arms (continuous), 40Arms (peak, 100ms)
• Control Method: Full-digital sine-wave PWM with IGBT bridge and HRV3+ control technology, achieving a current loop bandwidth of 1.8kHz for rapid torque response.
• Input Power: Three-phase AC200V (±10%), 50/60Hz, with active power factor correction (PFC) to reduce harmonic distortion and energy consumption.
• Compatible CNC Systems: Fully compatible with FANUC 0i-F Plus, 30i/31i/32i-MODEL B Plus, and Power Motion i-MODEL A controllers, supporting advanced functions like AI Nano Contour Control and AI Thermal Displacement Compensation.
• HRV3+ Control: Enhances position/speed accuracy by suppressing mechanical resonance and vibration, enabling ±0.002mm positioning repeatability in precision machining.
• Integrated Safety Functions:
  • Overcurrent, overvoltage, overheat, and short-circuit protection.
  • Real-time monitoring of motor temperature, insulation resistance, and encoder health.
  • Compliance with ISO 13849-1 (PL d) and IEC 61508 (SIL 2) safety standards.
• Thermal Design:
  • Forced-air cooling with integrated temperature sensors and automatic derating at high ambient temperatures.
  • High-efficiency heat sinks and vibration-resistant PCBs for operation in 0°C to +55°C environments.
• Modular Architecture:
  • Supports daisy-chaining of up to four αi SV 4/20 amplifiers for eight-axis synchronization.
  • Hot-swappable design with LED status indicators for easy maintenance.

Performance Advantages

• Mixed-Power Axis Control:
  • Ideal for applications requiring one low-power axis (e.g., rotary table) and one high-power axis (e.g., linear feed drive) in a single module.
  • 20-bit absolute encoder feedback (1,048,576 pulses/rev) enables sub-micron positioning accuracy.
• Energy Efficiency:

  • 97% power conversion efficiency reduces energy waste and heat generation.

  • Active regeneration circuitry recovers braking energy, lowering operational costs.
• Industrial Robustness:
  • IP67-rated connectors and conformal-coated PCBs resist dust, moisture, and vibration.
  • Shock resistance of 30G (11ms) and vibration resistance of 5–500Hz (1.5G) ensure reliability in harsh environments.
• Smart Diagnostics:
  • Built-in AI Servo Tuning optimizes PID gains automatically.
  • FANUC Picture Diagnostics provides real-time visualization of motor current, temperature, and vibration spectra.

Application Scenarios

• Hybrid CNC Machining Centers:
  • Drives a rotary axis (4Arms) and a linear feed axis (20Arms) in 5-axis milling machines for complex part manufacturing (e.g., aerospace components, automotive gearboxes).
• Robotic Assembly Systems:
  • Controls a low-power wrist axis (4Arms) and a high-power arm axis (20Arms) in collaborative robots, ensuring ±0.05mm repeatability.
• Printing and Packaging Machinery:
  • Enables precise tension control in reel-to-reel systems and rapid motion in pick-and-place units.
• Medical Device Manufacturing:
  • Used in CNC lathes for producing orthopedic implants and surgical instruments with Ra 0.2μm surface finishes.

Specification Table

Conclusion

The FANUC CNC Dual-Axis Servo Amplifier A06B-6117-H203 αi SV 4/20 represents a compact, high-performance solution for mixed-power multi-axis motion control in precision industrial applications. Its combination of HRV3+ control, industrial-grade robustness, and smart diagnostics makes it indispensable in CNC machining, robotics, packaging, and medical device manufacturing. Whether driving a low-power rotary axis and a high-power linear axis in a CNC machine or enabling coordinated motion in a robotic arm, the αi SV 4/20 delivers the performance, reliability, and efficiency required to meet the demands of modern advanced manufacturing.