Description
FANUC A06B-6117-H103 is a βi series servo amplifier module used in CNC machines to control servo motors.
Basic Description
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Manufacturer: FANUC
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Part Number: A06B-6117-H103
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Series: βi (Beta-i) Servo Amplifier
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Type: Single-axis servo amplifier module
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Power Supply: Typically 200–230 V AC
Main Function
The A06B-6117-H103 amplifier controls one CNC servo motor and performs:
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Current control for the servo motor
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Speed control
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Position control based on CNC commands
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Processing encoder feedback signals
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Communication with the CNC controller
Typical Applications
This servo amplifier is used in machines such as:
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CNC machining centers
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CNC lathes
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Industrial automation equipment using FANUC βi servo systems
Internal Structure
Inside the amplifier you will typically find:
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Power module (IGBT inverter)
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Control PCB boards
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Cooling heat sink
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Feedback and signal connectors
Simple Explanation
✅ A06B-6117-H103 = FANUC βi single-axis servo amplifier used to drive one servo motor axis in a CNC machine.


