Giddings & Lewis 502-03642-03 Analog Input Module

Technical Specifications

Model： 502-03642-03

Brand： Giddings & Lewis

Product Type: Rack mount 8-channel analog input PCB assembly for PiC900 / NumeriPath CNC system

Module Feature:

Function: 8-channel analog input board for G&L CNC platform. It collects analog signals from pressure transducers, temperature transmitters, potentiometers and other analog field sensors, converts analog signals to digital data and transmits to CNC main processor for heavy horizontal boring mills and large machining centers.

Channel quantity: 8 analog input channels

Signal type: ±10V analog signal input

Bus interface: Parallel backplane bus for digital data transmission to CNC executive CPU

Onboard components: High precision A/D converters, signal filter circuits and overvoltage protection

LED indicators: POWER, ACT, FAULT diagnostic lights

Hardware self-diagnosis: A/D conversion error detection, input overrange monitoring, backplane communication integrity test

Programming software: Giddings & Lewis proprietary CNC software for channel scaling configuration and diagnostic test

Electrical Parameters

Backplane supply: +5VDC

Analog reference supply: ±15VDC

Power consumption: Max 9W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 1.1kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy CNC 8-channel analog input board

System compatibility

Compatibility description: 502-03642-03 belongs to Giddings & Lewis PiC900 / NumeriPath analog I/O family. Compatible with matching rack backplane, executive CPU and analog control boards. Widely fitted on vintage heavy G&L horizontal boring mills.

Function

Function description: 502-03642-03 is multi-channel analog input board manufactured by Giddings & Lewis. It samples ±10V analog signals from machine field sensors, converts analog values into digital data through onboard A/D converters, and sends digital readings to CNC controller. The CNC system uses these real-time analog data for spindle temperature monitoring, hydraulic pressure feedback and other machine condition monitoring functions. It is legacy analog signal acquisition spare for heavy G&L CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V and ±15VDC analog power. Insert 502-03642-03 board into rack slot and secure gold finger connector. Wire shielded analog sensor cables to terminal block. Complete channel scaling setup in CNC software. Power on rack, verify ACT LED status and test analog signal reading accuracy.

Interface

Interface list: Backplane gold finger connector, multi-channel analog screw terminal block,on-board POWER / ACT / FAULT LED indicators for Giddings & Lewis 502-03642-03.

Diagnostic

Troubleshooting: No analog reading:Check ±15V reference supply, sensor wiring or damaged A/D channel. FAULT LED lit:Analog input overrange, backplane communication failure or onboard circuit fault. Unstable reading:Ground loop interference, poor shield grounding or damaged sensor cable.

Product Brief

Brief description: 502-03642-03 is Giddings & Lewis legacy 8-channel analog input board,for collecting ±10V analog sensor signals and converting to digital data on heavy CNC boring mills,discontinued CNC analog input PCB spare.