Fanuc ai Servo Amplifier 200VAC-input A06B-6117-C304

🔧 FANUC A06B-6117-C304 – Alpha i Servo Amplifier (3-Axis, Compact Mixed Power)

FANUC A06B-6117-C304 Servo Amplifier

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🧠 Model Description

A06B-6117-C304 is a FANUC Alpha i (αi) servo amplifier module from the 6117 series (newer generation), designed for 3-axis control in a compact (C-type) configuration with mixed power ratings.

👉 Common designation: SVM3-20/20/40i (Compact version)

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⚙️ Key Technical Details

• Type: AC Servo Amplifier
• Series: Alpha i (αi) – 6117
• Variant: C-type (compact design)
• Axes: 3 axes (triple-axis)
• Model: SVM3-20/20/40i
• Current Rating:
  • Axis 1 → 20A
  • Axis 2 → 20A
  • Axis 3 → 40A (high-power axis)
• Communication: FSSB (fiber optic servo bus)

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⚙️ What “C304” Means

• C = Compact / integrated amplifier
• 304 =
  • 3-axis module (SVM3)
  • Mixed rating (20/20/40)

👉 Equivalent to:

• H304 (same rating, standard-size module)

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⚙️ What It Does

This amplifier:

• Drives three servo motors simultaneously
• Controls:
  • Position
  • Speed
  • Torque
• Handles uneven axis loads (one heavier axis)
• Provides precise synchronized motion

👉 Simple explanation:
Compact 3-axis amplifier where one axis requires higher power than the other two.

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🏭 Applications

• CNC machining centers
• Vertical machining centers (VMC)
• Machines with:
  • X, Y → medium load
  • Z → heavier load (gravity/spindle head)

Also used in:

• Automation systems with mixed axis requirements

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🔍 Key Features

• ✔ 3-axis integrated amplifier (space saving)
• ✔ Compact C-type design
• ✔ Mixed power rating (20/20/40)
• ✔ Improved efficiency (6117 series)
• ✔ High precision motion control
• ✔ Compatible with αi servo motors

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⚠️ Important Notes

• 6117 series = newer than 6114 (better thermal & efficiency)
• C304 = compact version of H304
• Requires:
  • Matching αi power supply module (PSM)
  • Compatible servo motors
• Typically repaired/refurbished

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🧠 Simple Explanation

👉 A06B-6117-C304 is a compact 3-axis FANUC servo amplifier with two medium-power axes and one high-power axis, ideal for machines with uneven load requirements.