Fanuc ai Servo Amplifier 200VAC-input A06B-6117-H304

🔧 FANUC A06B-6117-H304 – Alpha i Servo Amplifier (3-Axis, Mixed Power)

FANUC A06B-6117-H304 Servo Amplifier

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🧠 Model Description

A06B-6117-H304 is a FANUC Alpha i (αi) servo amplifier module from the 6117 series, designed for 3-axis control with mixed power ratings.

👉 Common designation: SVM3-20/20/40i

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⚙️ Key Technical Details

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

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⚙️ What It Does

This amplifier:

• Drives three servo motors simultaneously
• Controls:
  • Position
  • Speed
  • Torque
• Handles uneven load distribution (one heavier axis)
• Synchronizes all axes for precise machining

👉 Simple explanation:
One amplifier controls 3 axes, where one axis requires higher power than the others.

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🔍 6117 Series Advantages

Compared to older 6114 series:

• ✔ More compact design
• ✔ Improved heat management
• ✔ Better efficiency
• ✔ Higher reliability

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🏭 Applications

• CNC machining centers
• Vertical machining centers (VMC)
• Machines where:
  • 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)
• ✔ Mixed rating (20/20/40) → flexible axis configuration
• ✔ High precision motion control
• ✔ Fiber optic communication (FSSB)
• ✔ Compatible with αi servo motors

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⚠️ Important Notes

• H304 = 3-axis module
• “20/20/40” means:
  • Two medium-power axes
  • One high-power axis (usually Z-axis)
• Requires:
  • Proper power supply module (PSM)
  • Matching servo motors
• Typically repaired/refurbished

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🧠 Simple Explanation

👉 A06B-6117-H304 is a 3-axis FANUC servo amplifier where two axes are medium power and one axis is higher power, making it ideal for machines with uneven load requirements.