Giddings & Lewis M.1302.6214 MMC 2-Axis Motion Module

Technical Specifications

Model： M.1302.6214

Brand： Giddings & Lewis

Product Type: Rack mount dual-axis digital MMC motion control PCB for PiC900 CNC system

Module Feature:

Function: Dual-axis MMC motion control board for G&L PiC900 CNC platform. Receives NC program blocks from PiC900 CPU, performs linear and circular trajectory interpolation, outputs synchronized motion commands over SERCOS optical fiber ring to control two servo axes for heavy horizontal boring mills and large machining centers.

Bus interface: PiC900 parallel backplane bus for communication with main CPU Servo interface: SERCOS optical fiber ring for real-time axis command transmission

Onboard components: Motion DSP processor, battery-backed RAM for axis parameter retention

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

Hardware self-diagnosis: SERCOS loop integrity test, watchdog monitoring, encoder communication error detection, memory parity check

Programming software: PiCPro for axis parameter setup, servo gain tuning and fault history review

Electrical Parameters

Backplane supply: +5VDC

Power consumption: Max 12.2W

Backup memory supply: Lithium battery to preserve axis parameters after power cut

Mechanical & Structure:

Mounting: PiC900 rack slot mount with gold finger edge connector

Weight: 1.35kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

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

System compatibility

Compatibility description: M.1302.6214 belongs to Giddings & Lewis PiC900 MMC motion family. Compatible with PiC900 CPU, M.1302 series servo amplifiers and HSM brushless servo motors. Widely installed on heavy G&L horizontal boring mills.

Function

Function description: M.1302.6214 is dual-axis MMC motion control board manufactured by Giddings & Lewis. It executes trajectory interpolation and coordinated motion control for two CNC feed axes. Synchronized motion commands are transmitted to servo drives via SERCOS fiber ring to achieve high-precision contour machining. Onboard lithium battery stores axis configuration parameters when power is removed. It is legacy 2-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.1302.6214 board into PiC900 rack slot and secure gold finger connector. Check backup lithium battery condition. Wire SERCOS optical cables in ring topology to servo amplifiers. Configure axis parameters and tune servo gains via PiCPro. Power on rack, verify ACT LED and SERCOS link status, test axis jog, homing and contour cutting performance.

Interface

Interface list: PiC900 backplane gold finger connector, SERCOS transmit / receive fiber ports,on-board POWER / ACT / AXIS ALARM / FAULT LED indicators for Giddings & Lewis M.1302.6214.

Diagnostic

Troubleshooting: SERCOS communication failure: Inspect fiber cable damage, loose fiber connector or wrong ring topology. FAULT LED lit: Memory parity error, backplane communication failure or exhausted backup battery. Machining contour deviation: Improper servo gain setting or unstable SERCOS sync signal.

Product Brief

Brief description: M.1302.6214 is Giddings & Lewis legacy PiC900 MMC dual-axis motion control board,with SERCOS fiber ring digital interface for synchronized 2-axis contour machining on heavy CNC boring mills,discontinued CNC motion controller PCB spare.