Fanuc ai Servo Amplifier 200VAC-input A06B-6117-C303

🔧 FANUC A06B-6117-C303 – Alpha i Servo Amplifier (3-Axis, Compact Medium Power)

FANUC A06B-6117-C303 Servo Amplifier

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🧠 Model Description

A06B-6117-C303 is a FANUC Alpha i (αi) servo amplifier module from the 6117 series, designed for 3-axis control in a compact (C-type) design with medium power capacity.

👉 Common designation: SVM3-20/20/20i (Compact version)

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⚙️ Key Technical Details

• Type: AC Servo Amplifier
• Series: Alpha i (αi) – 6117 (newer generation)
• Variant: C-type (compact)
• Axes: 3 axes (triple-axis)
• Model: SVM3-20/20/20i
• Current Rating:
  • Axis 1 → 20A
  • Axis 2 → 20A
  • Axis 3 → 20A
• Communication: FSSB (fiber optic servo bus)

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⚙️ What “C303” Means

• C = Compact / integrated amplifier
• 303 =
  • 3-axis module (SVM3)
  • Medium power rating (20/20/20)

👉 Equivalent to:

• H303 (same electrical rating, larger module)

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⚙️ What It Does

This amplifier:

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

👉 Simple explanation:
Compact amplifier controlling 3 medium-power CNC axes.

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🏭 Applications

• CNC machining centers
• CNC milling machines
• Medium-load automation systems
• Machines with limited cabinet space

Typical axes:

• X, Y, Z (standard machining loads)

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🔍 Key Features

• ✔ 3-axis integrated amplifier (space saving)
• ✔ Medium power (20/20/20)
• ✔ Compact C-type design
• ✔ Improved efficiency (6117 series)
• ✔ High precision motion control
• ✔ Compatible with αi servo motors

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⚠️ Important Notes

• 6117 = newer generation (better thermal & efficiency vs 6114)
• C303 = compact version of H303
• Requires:
  • Proper power supply module (PSM)
  • Matching servo motors
• Commonly repaired/refurbished

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🧠 Simple Explanation

👉 A06B-6117-C303 is a compact 3-axis FANUC servo amplifier designed for medium-power applications, controlling three CNC axes in a space-saving design.