Giddings & Lewis 502-03944-95 SERCOS Interface Module

Technical SpecificationsModel：502-03944-95 Brand：Giddings & Lewis Product Type: Single-slot plug-in dual ring SERCOS fiber interface module for PiC900 CNC control rack

Module Feature:Function: SERCOS fiber bus communication module for PiC900 CNC system, establishes real-time fiber SERCOS link between PiC900 controller and Centurion SERCOS servo drives. Topology:Dual redundant SERCOS fiber ring Connector:2 × SMA female fiber ports for 1000μm plastic optical fiber Max slave nodes:Up to 8 SERCOS slave devices per ring Auxiliary port:RS232 serial port for firmware upgrade and module diagnosis Onboard local processor:Independently handle SERCOS protocol data processing LED indicators:OK, RUN, COM, FAULT, RING diagnostic status lights Hardware self-diagnosis:Fiber optical power detection, slave node online monitoring, ring break alarm, backplane bus communication check Programming software:PiCPro for network topology configuration and firmware update

Electrical ParametersBackplane supply:+5V from PiC900 rack backplane, 575mA Power consumption:Max 2.9W No external field power required

Mechanical & Structure:Mounting:Plug into PiC900 rack single slot Dimension:41mm × 305mm × 213mm Weight:0.28kg Protection class:IP20

Environmental:Operating temperature:7℃ ~ +55℃ Ambient humidity:5~85% non-condensing Certification:CE Status:Manufacturer discontinued legacy CNC communication module

System compatibility502-03944-95 belongs to Giddings & Lewis PiC900 control platform. Compatible with PiC900 backplane, PiC900 CPU processor boards and Centurion SERCOS servo drives. Widely installed on G&L 70A series horizontal boring mills and PMC series CNC boring machines.

Function502-03944-95 is PiC900 SERCOS fiber interface module manufactured by Giddings & Lewis. It serves as the fiber bus gateway between CNC controller and servo drives. Dual ring topology improves bus redundancy and reliability. It transmits cyclic real-time motion commands and receives servo position feedback without heavy CPU load. RS232 port supports on-site firmware upgrade and fault diagnosis. It is critical spare communication board for legacy SERCOS-based G&L CNC machine tools.

InstallationFollow lockout/tagout safety procedure before installation. Cut off rack backplane power. Insert 502-03944-95 module into PiC900 backplane slot and lock retainer. Connect plastic SERCOS fiber cables to SMA ports and configure ring termination. Set SERCOS node addresses and network parameters in PiCPro software. Power rack on and verify fiber link and servo slave communication status.

InterfacePiC900 backplane gold-edge connector,dual SMA fiber optical ports,RS232 serial diagnostic port,on-board OK / RUN / COM / FAULT / RING LED indicators for Giddings & Lewis 502-03944-95.

DiagnosticServo slave offline:Check fiber cable condition, SMA connector cleanliness, bus termination or node address conflict. RING alarm:Fiber break, optical power attenuation or wrong ring wiring. FAULT LED lit:Backplane communication error or module firmware corruption.

Product Brief502-03944-95 is Giddings & Lewis legacy PiC900 dual ring SERCOS fiber interface module,for high-speed real-time fiber communication between CNC controller and SERCOS servo drives,discontinued CNC spare card.