Giddings & Lewis 572-03927-03 Digital Control Module

Technical Specifications

Model： 572-03927-03

Brand： Giddings & Lewis

Product Type: Rack mount programmable digital logic control PCB assembly for legacy NumeriPath CNC system

Module Feature:

Function: Programmable digital logic control board for G&L NumeriPath CNC platform. Executes machine auxiliary logic, safety interlock and discrete signal sequence control. Handles input signal acquisition and output drive logic for spindle, tool changer and coolant control of heavy horizontal boring mills and large machining centers.

Signal interface: 24VDC discrete digital input and output channels

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

Onboard components: Programmable logic processor, non-volatile memory for user logic program storage

LED indicators: POWER, RUN, FAULT, PROGRAM STATUS diagnostic lights

Hardware self-diagnosis: Backplane communication test, program integrity check, I/O channel fault detection

Programming software: Giddings & Lewis proprietary CNC logic programming software for logic editing, download and diagnostic test

Electrical Parameters

Backplane supply: +5VDC

Field I/O supply: 24VDC

Power consumption: Max 8.2W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 1.0kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy CNC programmable logic control board

System compatibility

Compatibility description: 572-03927-03 belongs to Giddings & Lewis NumeriPath programmable control family. Compatible with matching rack backplane, executive CPU and digital I/O boards. Widely fitted on vintage heavy G&L horizontal boring mills.

Function

Function description: 572-03927-03 is programmable digital control board manufactured by Giddings & Lewis. It runs custom machine logic programs independently to manage machine auxiliary functions and safety interlock sequences. It reads limit, sensor and E-stop signals, then controls relays and contactors for spindle startup, tool magazine rotation and coolant pump operation. Logic programs are stored in onboard non-volatile memory. It is legacy programmable logic 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 572-03927-03 board into rack slot and secure gold finger connector. Download machine logic program and verify program checksum. Wire 24VDC field I/O signals. Power on rack, verify RUN LED status, run logic self-test and validate interlock and auxiliary machine functions.

Interface

Interface list: Backplane gold finger connector, 24VDC screw terminal block,on-board POWER / RUN / FAULT / PROGRAM STATUS LED indicators for Giddings & Lewis 572-03927-03.

Diagnostic

Troubleshooting: Program cannot run:Check program checksum error, board memory fault or +5V backplane power missing. FAULT LED lit:Backplane communication failure or field channel short circuit. Interlock malfunction:Logic program version mismatch or loose I/O terminal wiring.

Product Brief

Brief description: 572-03927-03 is Giddings & Lewis legacy programmable digital control board,for executing machine safety interlock and auxiliary function logic on heavy CNC boring mills,discontinued CNC logic PCB spare.