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A06B-6079

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A06B-6079
May 22, 2026

A06B-6079

The A06B-6079 series is FANUC’s Alpha series servo amplifier module, designed for high‑performance motion control in CNC machine tools, robotics, and industrial automation systems. It delivers precise, fast response for single‑, dual‑, or triple‑axis control with digital servo logic and FSSB (FANUC Serial Servo Bus) optical interface support.

Description

The A06B-6079 series is FANUC’s Alpha series servo amplifier module, designed for high‑performance motion control in CNC machine tools, robotics, and industrial automation systems. It delivers precise, fast response for single‑, dual‑, or triple‑axis control with digital servo logic and FSSB (FANUC Serial Servo Bus) optical interface support.

Model Variations (Typical)

  • A06B-6079‑H104: SVM1‑45, 1‑axis, 4.5 kW, 20.8 A

  • A06B-6079‑H106: SVM1‑130, 1‑axis, 9.1 kW, 52.2 A

  • A06B-6079‑H107: SVM1‑240, 1‑axis, 22 kW, 77.5 A

  • A06B-6079‑H201: SVM2‑12/12, 2‑axis, 1.5 kW, 3.0 A/axis

  • A06B-6079‑H206: SVM2‑40/40, 2‑axis, 5.3 kW, 12.5 A/axis

  • A06B-6079‑H301: SVM3‑12/12/12, 3‑axis, 2.3 kW, 3.0 A/axis

Specifications

Input

Rated input voltage is 283–325 VDC (rectified 200–230 VAC 3‑phase). Control power is 24 VDC ±10%.

Output

Maximum output voltage is 230 VAC (3‑phase). Output current and power depend on the specific model. It supports FANUC Alpha/Beta servo motors with resolver or encoder feedback.

Environmental

Operating temperature ranges from 0°C to +55°C. Storage temperature is ‑40°C to +85°C. Humidity is 10%–90% RH (non‑condensing).

Mechanical

Dimensions are approximately 380 mm (H) × 60/90 mm (W) × 172/307 mm (D). Weight ranges from 2.5 kg to 6 kg, varying by model.

Key Features

  • Digital Servo Control: High‑speed DSP for precise position, speed, and torque control.

  • FSSB Optical Interface: Reduces noise, simplifies wiring, and supports long‑distance communication.

  • Integrated Power Supply: Compact design with built‑in DC link.

  • Overcurrent, Overvoltage, Overtemperature Protection: Ensures system safety.

  • Internal Cooling Fan: Maintains stable operation under load.

  • Modular Construction: Easy installation, replacement, and maintenance.

Installation

Wiring

  • Power: Connect DC input (283–325 VDC) to the DC link terminals.

  • Control: Connect 24 VDC, emergency stop (ESP), and FSSB communication cables to CX1A/CX1B and JV1B/JV2B.

  • Motor: Connect U/V/W/E to the servo motor; connect encoder/resolver to the feedback connector.

  • Ground: Ensure proper earth grounding to reduce noise.

Mounting

  • Install vertically in a well‑ventilated cabinet.

  • Allow 100 mm clearance around the unit for airflow.

  • Secure with mounting screws to prevent vibration.

Safety Precautions

  • Disconnect all power before installation or maintenance; wait for the DC link capacitor to discharge.

  • Never touch high‑voltage terminals; risk of electric shock.

  • Use only specified fuses (e.g., A06B-6077-K250).

  • Repeated alarm trips indicate a fault; inspect wiring, motor, or amplifier before restarting.

  • Keep the unit away from flammable materials and corrosive gases.

Alarm Codes (Common)

  • 1 (FAL): Internal fan stopped.

  • 2 (LV5V): Low control power voltage.

  • 5 (LVDC): Low DC link voltage.

  • 8 (HCL): L‑axis overcurrent.

  • 9 (HCM): M‑axis overcurrent.

  • A (HCN): N‑axis overcurrent.

  • IPML/IPMM/IPMN: IPM module alarm (short circuit or overheating).

Maintenance

  • Regular Inspection: Check fan operation, terminal tightness, and cable condition.

  • Cleaning: Remove dust from the fan and heat sink with a dry cloth.

  • Replacement: Use only FANUC‑original parts; refer to manual B‑65162E for details.

Application

  • CNC machining centers, lathes, grinders.

  • Industrial robots and automation lines.

  • High‑speed, high‑precision motion control systems.


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