Giddings & Lewis 502-03853-00R3 SERCOS Interface Board

Technical SpecificationsModel：502-03853-00R3 Brand：Giddings & Lewis Product Type: Single-slot plug-in PiC900 SERCOS optical communication interface board

Module Feature:Function: SERCOS optical fiber interface board for G&L PiC900 CNC platform. It establishes SERCOS fiber ring bus between PiC900 controller and Centurion servo drives, transfers digital motion commands and encoder feedback data for heavy horizontal boring mills and large machining centers. Interface: Dual SERCOS optical fiber ports for ring topology Onboard fiber transceiver and bus control logic Backplane parallel bus for data exchange with PiC900 CPU Supports real-time digital servo communication with multiple axes LED indicators: OK, LINK, ACT, FAULT diagnostic lights Hardware self-diagnosis: Fiber link integrity test, SERCOS ring error detection, backplane communication test Programming software: PiCPro for SERCOS ring configuration, axis assignment and alarm log reading

Electrical ParametersBackplane supply:+5VDC Power consumption:Max 4.5W

Mechanical & Structure:Mounting:PiC900 rack slot mount with gold finger connector Weight:0.24kg Protection class:IP20

Environmental:Operating temperature:0℃ ~ +60℃ Ambient humidity:5~85% non-condensing Certification:CE Status:Manufacturer discontinued legacy PiC900 SERCOS communication board

System compatibility502-03853-00R3 belongs to Giddings & Lewis PiC900 SERCOS family. Compatible with PiC900 CPU, MMC motion control modules and Centurion SERCOS servo drives. Widely fitted on G&L heavy horizontal boring mills.

Function502-03853-00R3 is PiC900 SERCOS interface board manufactured by Giddings & Lewis. It serves as the optical gateway for SERCOS digital servo ring. It transmits real-time motion commands from PiC900 CPU to servo amplifiers via optical fiber, and receives encoder feedback and servo status data back from drives. It supports multi-axis synchronized motion control for large machine tools. It is a critical SERCOS communication spare for legacy heavy G&L CNC boring mills.

InstallationFollow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert 502-03853-00R3 module into PiC900 rack slot and lock retainer. Install SERCOS optical fiber cables in ring topology. Configure SERCOS ring parameters and axis mapping via PiCPro. Power on module, verify LINK/ACT LED and test multi-axis motion.

InterfacePiC900 backplane gold finger connector, dual SERCOS fiber optical ports,on-board OK / LINK / ACT / FAULT LED indicators for Giddings & Lewis 502-03853-00R3.

DiagnosticNo SERCOS link:Check fiber cable contamination, fiber damage or broken ring topology. FAULT LED lit:Backplane communication failure or onboard fiber transceiver fault. Intermittent axis dropout:Poor fiber connection or incorrect SERCOS ring configuration.

Product Brief502-03853-00R3 is Giddings & Lewis legacy PiC900 SERCOS fiber interface board,for digital SERCOS ring communication between CNC controller and servo drives on heavy CNC boring mills,discontinued CNC fiber communication spare card.