Fives Group 502-03420-00 Remote I/O Interface Module

Technical Specifications

Model： 502-03420-00

Brand： Fives Group (Giddings & Lewis)

Product Type: Rack mount remote I/O interface PCB assembly for legacy PIC900 CNC control system

Module Feature:

Function: Remote I/O interface module for Fives Group PIC900 CNC platform. Connects CNC rack backplane to distributed remote field I/O stations. Converts parallel backplane signals to serial bus signals, transmits PLC commands and collects sensor/switch status feedback, performs error checking for field I/O communication for heavy horizontal boring mills and large machining centers.

Communication Interface: Field serial I/O bus Bus interface: Parallel backplane bus for bidirectional high-speed data exchange with CNC CPU

Onboard components: Serial bus transceiver, data buffer IC, parity check circuit, address decoding logic, transient surge protection circuit

LED indicators: POWER, COM, LINK, FAULT diagnostic lights

Hardware self-diagnosis: Serial link integrity test, parity error detection, backplane bus handshake verification

Programming software: Fives Group proprietary CNC software for remote I/O node address configuration and communication diagnostic testing

Electrical Parameters

Backplane supply: +5VDC

Power consumption: Max 7.5W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.93kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy PIC900 remote I/O interface module

System compatibility

Compatibility description: 502-03420-00 belongs to Fives Giddings & Lewis PIC900 CNC I/O family. Compatible with PIC900 CPU and distributed field remote I/O modules. Widely deployed on heavy Fives horizontal boring mills.

Function

Function description: 502-03420-00 is remote I/O interface board manufactured by Fives Group (Giddings & Lewis). It serves as gateway between CNC rack and remote I/O modules installed at machine body. It receives parallel data from CNC backplane and converts to serial bus signals to remote I/O nodes, then returns field input signals back to CNC PLC. Built-in parity check prevents data corruption caused by workshop electrical interference. It is legacy remote field I/O interface spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert 502-03420-00 board into rack slot and secure gold finger connector. Connect shielded serial bus cable to field remote I/O stations. Configure remote I/O node addresses via Fives CNC software. Restore power, verify COM and LINK LED indicators and test remote I/O signal exchange.

Interface

Interface list: Backplane gold finger connector, serial field bus screw terminal block,on-board POWER / COM / LINK / FAULT LED indicators for Fives Group 502-03420-00.

Diagnostic

Troubleshooting: All remote I/O offline: Check serial bus cable, terminal resistor or damaged bus transceiver chip. FAULT LED lit: Parity error, bus disconnection or backplane communication failure. Random I/O signal loss: Electromagnetic interference, poor cable shielding or aging transceiver component.

Product Brief

Brief description: 502-03420-00 is Fives Group legacy PIC900 remote I/O interface board,provides serial bus connection between CNC rack and machine field I/O stations on heavy CNC boring mills,discontinued CNC remote I/O PCB spare.