Giddings & Lewis M.1302.1359 MMC Motion Control Module

Technical Specifications

Model： M.1302.1359

Brand： Giddings & Lewis

Product Type: Rack mount MMC multi-axis digital motion control board for PiC900 CNC system

Module Feature:

Function: MMC multi-axis motion control board for G&L PiC900 CNC platform. Receives block program data from CNC CPU, performs high-speed trajectory interpolation, generates SERCOS fiber digital motion commands to drive multiple servo axes for heavy horizontal boring mills and large machining centers.

Bus interface: Parallel backplane bus for communication with PiC900 executive CPU Fiber interface: SERCOS optical ring for servo drive communication

Onboard components: High performance motion DSP, battery-backed RAM for axis parameter storage

LED indicators: OK, ACT, AXIS ALARM, FAULT diagnostic lights

Hardware self-diagnosis: SERCOS loop integrity detection, watchdog timeout, axis communication error, memory parity check

Programming software: PiCPro for axis parameter setup, multi-axis servo tuning and alarm log reading

Electrical Parameters

Backplane supply: +5VDC

Power consumption: Max 15W

Backup memory supply: Lithium battery for retaining axis configuration data

Mechanical & Structure:

Mounting: PiC900 rack slot mount with gold finger edge connector

Weight: 1.55kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy PiC900 MMC multi-axis motion control board

System compatibility

Compatibility description: M.1302.1359 belongs to Giddings & Lewis PiC900 MMC motion family. Compatible with PiC900 main CPU, SERCOS based SmartDrive / DSM servo amplifiers and G&L HSM series brushless servo motors. Widely fitted on heavy G&L horizontal boring mills.

Function

Function description: M.1302.1359 is MMC multi-axis motion control board manufactured by Giddings & Lewis. It is the core motion calculation unit of PiC900 CNC. It receives G-code block data from main CPU, executes linear and circular interpolation, generates synchronized digital commands over SERCOS fiber ring to multiple servo drives. It coordinates multi-axis synchronized movement for milling, boring and contour machining. The onboard lithium battery keeps servo parameters saved after power loss. It is legacy multi-axis motion spare for heavy G&L CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert M.1302.1359 module into PiC900 rack slot and secure gold finger connector. Inspect backup battery status. Install SERCOS fiber cables in ring topology connecting servo drives. Configure axis parameters and perform servo tuning via PiCPro. Power on rack, verify ACT LED and SERCOS link status, test multi-axis jog, homing and contour cutting performance.

Interface

Interface list: PiC900 backplane gold finger connector, SERCOS transmit / receive fiber ports,on-board OK / ACT / AXIS ALARM / FAULT LED indicators for Giddings & Lewis M.1302.1359.

Diagnostic

Troubleshooting: No SERCOS communication: Check fiber cable routing, fiber damage or ring termination error. FAULT LED lit: Memory parity failure, backplane communication loss or battery depletion. Contour machining deviation: Improper servo gains or broken fiber link causing sync loss.

Product Brief

Brief description: M.1302.1359 is Giddings & Lewis legacy PiC900 MMC multi-axis motion control board,with SERCOS fiber ring digital interface for heavy CNC boring mill synchronized contour motion control,discontinued CNC motion controller PCB spare.