Products Description
Giddings & Lewis 503-26606-00 MMC-S8 Motion Control Module

Technical SpecificationsModel:503-26606-00 (M.1017.3770) Brand:Giddings & Lewis Product Type: Rack mount MMC-S8 8-axis SERCOS motion control unit for PiC900 CNC platform
Module Feature:Function: MMC-S8 8-axis SERCOS motion controller for G&L PiC900 CNC system, calculates high-speed multi-axis interpolation, executes closed-loop position/velocity/torque control, sends motion commands to servo drives over SERCOS fiber bus for heavy horizontal boring mills and large machining centers. Axis capacity: Up to 8 independent servo axes Communication: SERCOS fiber optical bus interface for digital servo command and encoder feedback Onboard local motion processor for trajectory calculation and axis servo loop Auxiliary serial port for PiCPro parameter configuration and diagnostics Battery slot: BR2032 lithium coin cell to retain axis parameters and offset data LED indicators: OK, READY, COM, AXIS FAULT diagnostic lights Hardware self-diagnosis: SERCOS bus integrity test, encoder signal loss detection, tracking error monitoring, watchdog fault detection Programming software: PiCPro for motor parameter setup, servo gain tuning, axis configuration and alarm log readout
Electrical ParametersControl supply:24VDC Power consumption:Max 13W Backup battery:BR2032 lithium coin cell
Mechanical & Structure:Mounting:Cabinet rack slot mount Weight:2.4kg Protection class:IP20
Environmental:Operating temperature:0℃ ~ +50℃ Ambient humidity:5~85% non-condensing Certification:CE Status:Manufacturer discontinued legacy MMC-S8 multi-axis motion control module
System compatibility503-26606-00 belongs to Giddings & Lewis MMC motion control family. Compatible with PiC900 CPU, SERCOS fiber servo drives, XSM/FSM/NSM series G&L servo motors. Widely fitted on G&L 70A horizontal boring mills and PMC CNC boring machines.
Function503-26606-00 (M.1017.3770) is MMC-S8 8-axis SERCOS motion control unit manufactured by Giddings & Lewis. It can control up to 8 servo axes simultaneously via SERCOS optical fiber bus. It receives G-code trajectory commands from PiC900 main CPU, performs real-time interpolation and closed-loop servo calculation, exchanges digital commands and encoder feedback with Centurion servo drives. The onboard backup battery keeps axis parameters saved when power fails. It is high-end multi-axis motion spare controller for legacy heavy G&L CNC machine tools.
InstallationFollow lockout/tagout safety procedure before installation. Cut off 24VDC control power. Mount 503-26606-00 in electrical cabinet rack. Connect 24V control power, SERCOS fiber cables to servo drives and serial diagnostic cable. Install BR2032 battery before power-up. Configure motor data, axis resolution and servo gains in PiCPro. Power on, run module self-test and test multi-axis jog, homing and machining positioning performance.
Interface24VDC control terminal,SERCOS fiber optical ports,serial diagnostic port,backplane gold finger connector,on-board OK / READY / COM / AXIS FAULT LED indicators for Giddings & Lewis 503-26606-00.
DiagnosticCOM FAULT:SERCOS fiber contaminated, damaged cable or wrong SERCOS ring topology. AXIS FAULT:Encoder signal loss, mechanical axis overload or servo gain out of range. Module fail to retain parameters:Depleted BR2032 backup battery or battery contact fault.

Product Brief503-26606-00 is Giddings & Lewis legacy MMC-S8 8-axis SERCOS motion control unit,with fiber SERCOS bus for up to 8 servo axes closed-loop control on heavy CNC boring mills,discontinued CNC multi-axis motion spare module.