Giddings & Lewis 502-03417-03 Intelligent Servo Control Board

Technical SpecificationsModel：502-03417-03 Brand：Giddings & Lewis Product Type: Rack mount intelligent servo control PCB assembly for NumeriPath CNC system

Module Feature:Function: Intelligent servo control board for G&L NumeriPath CNC platform. Executes axis closed-loop position and velocity control, outputs analog motion commands to servo amplifiers and collects differential quadrature encoder feedback for heavy horizontal boring mills and large machining centers. Control loop: Onboard dedicated servo processor for position, velocity and current loop calculation Signal interface: ±10V analog velocity command output, differential A/B/Z incremental encoder input Local memory: Battery backed RAM for storing axis parameters, servo gains and motor data Hardware watchdog: Built-in watchdog circuit for system fault protection LED indicators: POWER, ACTIVE, AXIS FAULT, FAULT diagnostic lights Hardware self-diagnosis: Encoder signal loss detection, tracking error monitoring, analog output overrange check, overcurrent protection Programming software: G&L proprietary CNC software for motor parameter setup, servo gain tuning and fault log reading

Electrical ParametersSupply: Multiple regulated DC rails from rack backplane Power consumption:Max 14W Onboard lithium backup battery for axis parameter retention

Mechanical & Structure:Mounting: Rack slot mount Weight:1.3kg Protection class:IP20

Environmental:Operating temperature:0℃ ~ +55℃ Ambient humidity:5~85% non-condensing Certification:CE Status:Manufacturer discontinued legacy intelligent servo control board

System compatibility502-03417-03 belongs to Giddings & Lewis NumeriPath CNC family. Compatible with matching system backplane, main CPU board and G&L analog servo drives. Widely fitted on vintage heavy G&L horizontal boring mills.

Function502-03417-03 is intelligent servo control board manufactured by Giddings & Lewis. It acts as the dedicated servo interface between CNC main processor and servo amplifiers. It receives motion trajectory instructions from the main CPU, performs real-time closed-loop servo computation, outputs ±10V analog speed commands and captures encoder feedback to calculate axis tracking error. The backup battery preserves servo tuning parameters when power is cut off. It is a legacy servo control spare for old heavy G&L CNC machine tools.

InstallationFollow lockout/tagout safety procedure before installation. Disconnect rack power. Insert 502-03417-03 board into rack slot and secure gold finger connector. Inspect backup battery condition before power-up. Connect shielded analog command cables and differential encoder cables. Configure motor and axis parameters, tune servo gains. Run board self-test and verify axis homing and positioning function.

InterfaceBackplane gold finger connector,multi-channel analog command terminal,quadrature encoder connectors,on-board POWER / ACTIVE / AXIS FAULT / FAULT LED indicators for Giddings & Lewis 502-03417-03.

DiagnosticAxis tracking error alarm:Check encoder cable quality,connector contact or poorly tuned servo gain. FAULT LED lit:Backplane power abnormality,analog output short circuit or onboard hardware fault. No axis movement:Missing enable signal,wrong wiring polarity or incorrect axis parameter setup.

Product Brief502-03417-03 is Giddings & Lewis legacy intelligent servo control board,with analog command and quadrature encoder feedback for heavy CNC boring mill closed-loop axis servo control,discontinued CNC servo spare PCB.