Description
A16B-2203-0625 is a servo amplifier printed circuit board (PCB) manufactured by FANUC for use inside α / αi series CNC servo amplifier units.
Basic Description
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Manufacturer: FANUC
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Part Number: A16B-2203-0625
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Type: Servo amplifier control / interface PCB
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Category: Industrial CNC drive electronics
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Application: Installed inside FANUC servo amplifier modules used in CNC machines.
Main Function
The A16B-2203-0625 board works as an internal control and signal processing board for the servo amplifier. Its main tasks include:
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Processing control signals from the CNC controller
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Managing servo motor feedback signals (encoder signals)
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Sending commands to the power drive section (IGBT module)
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Supporting current, speed, and position control loops
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Handling alarm and diagnostic signals within the amplifier.
Where It Is Installed
This PCB is typically found:
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Inside FANUC α-series servo amplifiers
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Mounted on the control section of the drive
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Connected to other boards through connectors and ribbon cables.
Machines That Use It
You can find this board in machines such as:
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CNC machining centers
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CNC lathes
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Industrial machines equipped with FANUC servo drive systems.
✅ Simple explanation:
A16B-2203-0625 = an internal control PCB used in FANUC servo amplifiers to manage communication and control between the CNC system and the servo motor drive.