Fives Group 502-02723-52 Memory Module

Technical Specifications

Model： 502-02723-52

Brand： Fives Group

Product Type: Rack mount memory PCB assembly for legacy CNC control system

Module Feature:

Function: Memory module for Fives Group CNC platform. Provides volatile and non-volatile memory storage for CNC system firmware, part programs, axis parameters, tool offset data and machine configuration settings for heavy horizontal boring mills and large machining centers.

Bus interface: Parallel backplane bus for high-speed data communication with CNC CPU

Onboard components: Memory IC chips, address decoding logic, battery backup circuit, data protection logic

LED indicators: POWER, ACT, BATT, FAULT diagnostic lights

Hardware self-diagnosis: Memory read/write test, battery voltage monitoring, data parity error detection

Programming software: Fives Group proprietary CNC software for memory diagnostics, program backup and parameter restore

Electrical Parameters

Backplane supply: +5VDC Battery backup: Lithium coin cell for parameter retention during power loss

Power consumption: Max 6.5W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.86kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy CNC memory module

System compatibility

Compatibility description: 502-02723-52 belongs to Fives Group CNC control board family. Compatible with Fives Group CPU, I/O boards and other rack interface modules. Widely fitted on heavy Fives Group horizontal boring mills.

Function

Function description: 502-02723-52 is CNC memory board manufactured by Fives Group. It stores CNC part programs, machine axis parameters, tool offsets and system configuration data. The onboard lithium battery preserves stored data when the main controller power is cut off. Built-in parity detection prevents data corruption. It is legacy memory storage spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert 502-02723-52 board into rack slot and secure gold finger connector. Verify backup battery status before power-up. Power on rack, check ACT and BATT LED status, run memory read-write diagnostic test and verify parameter storage function.

Interface

Interface list: Backplane gold finger connector, onboard lithium battery socket,on-board POWER / ACT / BATT / FAULT LED indicators for Fives Group 502-02723-52.

Diagnostic

Troubleshooting: Parameter lost after power cycle: Replace exhausted backup battery. FAULT LED lit: Memory parity error, backplane communication failure or damaged memory chip. Failed program load: Memory cell failure or poor backplane contact.

Product Brief

Brief description: 502-02723-52 is Fives Group legacy CNC memory board,for storing part programs, axis parameters and tool offset data on heavy CNC boring mills,discontinued CNC memory PCB spare.