Giddings & Lewis M.1302.7612 5-Axis Stepper Motion Module

Technical Specifications

Model： M.1302.7612

Brand： Giddings & Lewis

Product Type: Rack mount 5-axis stepper motion control PCB for PiC900 CNC system

Module Feature:

Function: 5-axis stepper motion control board for G&L PiC900 CNC platform. Receives trajectory commands from CNC CPU, generates step and direction pulse signals for up to 5 stepper axes, executes coordinated positioning motion for auxiliary axes of heavy horizontal boring mills and large machining centers.

Bus interface: PiC900 parallel backplane bus for communication with main CPU Servo signal: Step / Direction differential pulse outputs

Onboard components: Motion processor, pulse generation logic, isolated signal drivers

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

Hardware self-diagnosis: Pulse channel integrity check, backplane bus test, watchdog timeout detection

Programming software: PiCPro for axis parameter setup, pulse scaling and fault log reading

Electrical Parameters

Backplane supply: +5VDC Field signal supply: 32VAC

Power consumption: Max 9.2W

Mechanical & Structure:

Mounting: PiC900 rack slot mount with gold finger edge connector

Weight: 1.45kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy PiC900 5-axis stepper motion control board

System compatibility

Compatibility description: M.1302.7612 belongs to Giddings & Lewis PiC900 motion family. Compatible with PiC900 main CPU, MMC motion boards and external stepper drives. Widely fitted on heavy G&L horizontal boring mills for auxiliary positioning axes.

Function

Function description: M.1302.7612 is 5-axis stepper motion control board manufactured by Giddings & Lewis. It generates step and direction pulses to control stepper motor drives for machine auxiliary axes. It receives motion instructions from PiC900 CPU and performs multi-axis synchronized positioning. Differential pulse output improves noise immunity in industrial workshop environment. It is legacy auxiliary 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.1302.7612 board into PiC900 rack slot and secure gold finger connector. Wire shielded step/direction pulse cables to external stepper drives. Configure pulse resolution and axis parameters via PiCPro. Power on rack, verify ACT LED status, test axis jog, homing and positioning performance.

Interface

Interface list: PiC900 backplane gold finger connector, multi-channel step/direction differential pulse ports,on-board POWER / ACT / AXIS ALARM / FAULT LED indicators for Giddings & Lewis M.1302.7612.

Diagnostic

Troubleshooting: Axis no movement: Check step/dir wiring, loose connector or incorrect pulse scaling parameters. FAULT LED lit: Backplane communication failure, onboard pulse circuit damage or watchdog alarm. Position offset: Pulse count loss, poor cable shielding or noise interference.

Product Brief

Brief description: M.1302.7612 is Giddings & Lewis legacy PiC900 5-axis stepper motion control board,with step/direction differential pulse output for CNC machine auxiliary axis positioning,discontinued CNC stepper controller PCB spare.