Fives Group 502-03512-02 CPU Processor Module

Technical Specifications

Model： 502-03512-02

Brand： Fives Group

Product Type: Rack mount main CPU processor PCB assembly for legacy CNC system

Module Feature:

Function: Main CPU processor module for Fives Group CNC platform. Acts as the core control unit, executes CNC part program decoding, motion planning, axis interpolation, spindle logic and system management for heavy horizontal boring mills and large machining centers.

Bus interface: Parallel backplane bus for bidirectional high-speed communication with memory, I/O and servo interface boards

Onboard components: Main processing chip, system logic IC, watchdog circuit, reset control, timing oscillator

LED indicators: POWER, RUN, DIAG, FAULT diagnostic lights

Hardware self-diagnosis: Power-on self-test, watchdog monitoring, backplane bus integrity check, internal register test

Programming software: Fives Group proprietary CNC software for system boot, parameter configuration and board diagnostic testing

Electrical Parameters

Backplane supply: +5VDC

Power consumption: Max 10.5W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 1.10kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy CNC main processor module

System compatibility

Compatibility description: 502-03512-02 belongs to Fives Group CNC main control board family. Compatible with Fives Group memory boards, I/O modules, spindle and servo interface boards. Widely deployed on heavy Fives Group horizontal boring mills.

Function

Function description: 502-03512-02 is CNC main CPU board manufactured by Fives Group. It is the central control core of the CNC rack. It reads NC programs, performs block decoding, calculates axis interpolation trajectories and coordinates all peripheral boards including I/O, spindle and servo interfaces. Onboard watchdog circuit monitors system operation and triggers reset upon software crash. It is legacy main control spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert 502-03512-02 board into rack slot and secure gold finger connector. Check all adjacent rack module connections. Power on rack, verify RUN LED status, complete power-on self-test and verify program execution.

Interface

Interface list: Backplane gold finger connector,on-board POWER / RUN / DIAG / FAULT LED indicators for Fives Group 502-03512-02.

Diagnostic

Troubleshooting: System cannot boot: Check +5V backplane supply, poor backplane contact or CPU chip failure. FAULT LED lit: Watchdog timeout, POST failure or bus communication error. Program execution halt: Timing component aging or memory incompatibility.

Product Brief

Brief description: 502-03512-02 is Fives Group legacy CNC main CPU processor board,core controller for NC program decoding and multi-axis motion planning on heavy CNC boring mills,discontinued CNC main control PCB spare.