Fanuc Basic Unit for 18i A02B-0297-B504

A02B-0297-B504 is a CNC main control unit (controller) used in the 0i-F series CNC systems manufactured by FANUC.

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📌 Basic Information

• Part Number: A02B-0297-B504

• Device Type: CNC Main Control Unit

• Controller Series: FANUC Series 0i-F

• Category: CNC controller hardware module

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⚙️ Main Functions

The A02B-0297-B504 works as the central processor of the CNC machine and performs these operations:

• Executes NC programs (G-code / M-code)

• Controls axis motion and interpolation

• Communicates with servo amplifiers and spindle drives

• Runs PMC (Programmable Machine Control) ladder logic

• Manages machine I/O signals

• Handles system alarms, diagnostics, and communication

• Interfaces with the operator panel and display

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🔌 Typical System Connections

This controller normally connects with:

• Servo amplifiers

• Spindle amplifier

• I/O interface boards

• Operator panel / LCD display

• System memory modules

• Machine sensors and switches

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🔎 Variant Meaning

In the A02B-0297 controller family, versions like:

• B500

• B502

• B503

• B504

indicate different hardware revisions or configuration options of the same FANUC 0i-F controller (for example different memory size, interfaces, or builder-specific options).