Fanuc ai Servo Amplifier Power PCB 400VAC-input A16B-2203-0813

🔧 A16B-2203-0813 – Description

The part A16B-2203-0813 is a PCB (Printed Circuit Board) / drive board used in FANUC servo amplifier systems, manufactured by FANUC.

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📌 Official Description:

• Type: PC Board / Drive Board (PCB)
• Series: A16B-2203
• Application: Servo amplifier (αi series)
• Used in: SVM2 servo amplifier modules (e.g., SVM2-40/80HVi)

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⚙️ Main Function:

This board works as a drive/control + power interface PCB inside the servo amplifier and is responsible for:

• ⚡ Power distribution within the amplifier
• 🔄 Supporting servo drive circuitry (motor control)
• 🔌 Managing internal electrical connections
• 🔗 Enabling communication between CNC control and servo system

👉 Simple explanation:

It is a critical internal board that helps the servo amplifier control axis movement and motor performance.

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🧩 Where It Is Used:

• Installed inside FANUC α / αi servo amplifiers
• Commonly found in:
  • CNC machining centers
  • CNC lathes
  • Industrial automation machines

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🔍 Relation to Other Variants:

The 0813 version belongs to the same family as:

• 0810
• 0811
• 0812
• 0814
• 0815

👉 All are:

• Same base board type (power/drive PCB)
• Different due to revision, compatibility, or minor circuit updates

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🛠️ Common Failure Symptoms:

If this board is faulty, you may see:

• Servo amplifier alarms (SV alarms)
• Axis not moving or unstable
• Drive not powering correctly
• CNC machine stopping intermittently

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✅ Simple Summary:

A16B-2203-0813 = FANUC servo amplifier drive/power PCB (internal board) used to control and supply power for servo motor operation.