Giddings & Lewis 502-04111-01 Digital I/O Module

Technical Specifications

Model： 502-04111-01

Brand： Giddings & Lewis

Product Type: Rack mount digital I/O PCB assembly for legacy NumeriPath CNC system

Module Feature:

Function: Digital input and output board for G&L NumeriPath CNC platform. Collects discrete digital signals from limit switches, proximity sensors and emergency stop; outputs control signals to relays, contactors and machine auxiliary actuators for heavy horizontal boring mills and large machining centers.

Signal type: 24VDC discrete digital input and output channels

Bus interface: Parallel backplane bus for I/O data communication with CNC executive CPU

Onboard protection: Overcurrent and short-circuit protection for field I/O channels

LED indicators: POWER, ACT, CHANNEL STATUS, FAULT diagnostic lights

Hardware self-diagnosis: Backplane communication test, channel integrity detection, field short-circuit fault alarm

Programming software: Giddings & Lewis proprietary CNC software for I/O address assignment and board diagnostic test

Electrical Parameters

Backplane supply: +5VDC

Field I/O supply: 24VDC

Power consumption: Max 9.5W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.95kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy NumeriPath digital I/O board

System compatibility

Compatibility description: 502-04111-01 belongs to Giddings & Lewis NumeriPath I/O family. Compatible with matching rack backplane, executive CPU and operator interface boards. Widely fitted on vintage heavy G&L horizontal boring mills.

Function

Function description: 502-04111-01 is digital I/O board manufactured by Giddings & Lewis. It serves as signal interface between NumeriPath CNC controller and machine discrete field devices. It acquires safety interlock, travel limit and sensor feedback signals, and sends out control signals for spindle, coolant, tool magazine and other auxiliary machine functions. Built-in circuit protection prevents board damage caused by field wiring short circuit. It is legacy digital I/O spare for old heavy G&L CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power and 24VDC field power. Insert 502-04111-01 board into rack slot and secure gold finger connector. Wire 24VDC field I/O signals. Configure I/O addresses via CNC software, run self-test and verify input signal reading and output actuator control.

Interface

Interface list: Backplane gold finger connector, 24VDC screw terminal block,on-board POWER / ACT / CHANNEL STATUS / FAULT LED indicators for Giddings & Lewis 502-04111-01.

Diagnostic

Troubleshooting: Channel no response:Check 24VDC field supply, cable breakage or burned channel circuit. FAULT LED lit:Backplane communication error or field output short circuit. Random signal fluctuation:Ground loop interference or loose terminal connection.

Product Brief

Brief description: 502-04111-01 is Giddings & Lewis legacy digital I/O board for NumeriPath CNC system,for collecting machine discrete sensor signals and controlling auxiliary actuators on heavy CNC boring mills,discontinued CNC I/O PCB spare.