Fanuc ai Servo Amplifier 200VAC-input A06B-6114-H303

🔧 FANUC A06B-6114-H303 – 3-Axis Alpha i Servo Amplifier

🧠 Model Description

A06B-6114-H303 is a FANUC Alpha i (αi) servo amplifier module designed for 3-axis (triple-axis) control. It is commonly identified as:

👉 SVM3-20/20/20i (3-axis servo module)

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⚙️ Key Technical Details

• Type: AC Servo Amplifier
• Series: Alpha i (αi)
• Axes: 3 axes (X, Y, Z or equivalent)
• Model: SVM3-20/20/20i
• Input Voltage: 283–339 V DC
• Output Voltage: up to ~240 V AC
• Output Current: ~6.5 A per axis (L/M/N)
• Interface: FSSB (fiber optic communication)

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⚙️ What It Does

This amplifier:

• Drives three servo motors simultaneously
• Controls:
  • Position
  • Speed
  • Torque
• Synchronizes multi-axis motion
• Communicates with CNC via fiber optic (FSSB)

👉 Simple explanation:
One amplifier controls 3 CNC axes with medium power capacity.

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🏭 Applications

• CNC machining centers
• CNC milling machines
• Compact multi-axis machines
• Robotics and automation systems

Commonly used with:

• FANUC 0i / 16i / 18i / 21i controllers
• αi servo motors (4i / 8i class typical)

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🔍 Key Features

• ✔ Triple-axis integrated amplifier (space-saving)
• ✔ Medium power class (20/20/20 rating)
• ✔ High precision positioning
• ✔ Built-in protection & diagnostics
• ✔ Internal boards like:
  • A16B-2203 series (logic PCB)
  • A20B-2101 series (control PCB)

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⚠️ Important Notes

• H303 = 3-axis (SVM3 type)
• “20/20/20” = equal current rating per axis (medium load)
• Requires:
  • Matching servo motors
  • Compatible power supply module (PSM)
• Typically repaired/refurbished instead of replaced

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🧠 Simple Explanation

👉 A06B-6114-H303 is a 3-axis FANUC servo amplifier that controls three CNC machine axes with medium power, providing synchronized and precise motion control.