A20B-8101-060 - FANUC - Products - Easy Semiconductor Technology (Hong Kong) Limited 易擇半導體科技(香港)有限公司

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A20B-8101-060

FANUC A20B-8101-060 PCB Module

Type: Main Control Board (Legacy System)

Application: FANUC 6/11/15 Series CNC

Function: System CPU & Axis Control

Key Feature: ROM/RAM Memory Expansion

Compatibility: Requires FANUC Power Supply Unit

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FANUC A20B-8101-060 Main Control Board (Legacy CNC System) - Technical Parameters
Basic Specifications:
Model: A20B-8101-060

Type: Main CPU Control Board

System Compatibility: FANUC 6/11/15 Series (Legacy CNC)

Key Features:
Processor: 16-bit/32-bit CPU (Model-dependent)

Memory:

System ROM: Stores CNC firmware

RAM: For parameter storage (battery-backed)

Optional Bubble Memory (A20B-8000-xxxx) for data backup

I/O Interface:

RS-232C for tape reader/PC communication

Parallel I/O for machine signals

Electrical Specifications:
Power Supply:

+5V DC (Primary voltage, typically 3-5A)

Backup: 3V Lithium Battery (SRAM retention)

Environmental:

Operating Temp: 0–55°C

Humidity: ≤75% RH

Functional Parameters:
Axes Control: Up to 4 axes (depends on CNC model)

PMC: Built-in Programmable Machine Controller (Ladder logic)

Pulse Output: For servo/encoder feedback

Applications:
Legacy CNC lathes/mills (1980s–1990s)

Retrofit projects for older FANUC systems