Giddings & Lewis 502-03839-02 Analog Input Module

Technical Specifications

Model： 502-03839-02

Brand： Giddings & Lewis

Product Type: Rack mount multi-channel analog input PCB assembly for legacy NumeriPath CNC system

Module Feature:

Function: Analog input board for G&L NumeriPath CNC platform. It samples analog signals from transducers, probes and analog sensors, converts analog signals to digital values via A/D converter and transmits digitized data to CNC main processor for heavy horizontal boring mills and large machining centers.

Signal range: ±10V analog input signal

Bus interface: Parallel backplane bus for data communication with executive CPU

Onboard components: Multi-channel A/D converters, signal buffer and anti-interference circuits

LED indicators: POWER, ACT, FAULT diagnostic lights

Hardware self-diagnosis: A/D conversion error detection, channel overrange alarm, backplane communication test

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

Electrical Parameters

Backplane supply: +5VDC

Analog reference supply: ±15VDC

Power consumption: Max 10W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 1.2kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy CNC analog input board

System compatibility

Compatibility description: 502-03839-02 belongs to Giddings & Lewis NumeriPath analog I/O family. Compatible with matching rack backplane, executive CPU and operator station boards. Widely used on vintage heavy G&L horizontal boring mills for probing and analog monitoring functions.

Function

Function description: 502-03839-02 is analog input board manufactured by Giddings & Lewis. It collects analog voltage signals from machine probes and analog transducers, performs analog-to-digital conversion and sends digital data to CNC controller. It enables workpiece measurement, analog condition monitoring and part digitizing functions for heavy machine tools. It is legacy analog acquisition spare for old heavy G&L CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V and ±15VDC power. Insert 502-03839-02 board into rack slot and secure gold finger connector. Wire analog sensors with shielded cables. Perform channel calibration, run self-test and verify analog sampling and probing functions.

Interface

Interface list: Backplane gold finger connector, multi-channel analog screw terminal block,on-board POWER / ACT / FAULT LED indicators for Giddings & Lewis 502-03839-02.

Diagnostic

Troubleshooting: No analog reading:Check ±15V reference supply, sensor wiring or damaged A/D channel. FAULT LED lit:A/D conversion failure, backplane communication error or analog signal overload. Unstable readings:Ground loop interference, poor shielding or loose terminal contact.

Product Brief

Brief description: 502-03839-02 is Giddings & Lewis legacy analog input board,for analog signal collection and A/D conversion for heavy CNC boring mill probing and analog monitoring functions,discontinued CNC analog PCB spare.