Fives Group 502-03782-02 Spindle Control Module

Technical Specifications

Model： 502-03782-02

Brand： Fives Group

Product Type: Rack mount spindle control PCB assembly for legacy CNC system

Module Feature:

Function: Spindle control module for Fives Group CNC platform. Receives spindle speed and orientation commands from CNC CPU, executes spindle closed-loop velocity and position control, outputs analog or digital commands to spindle drive, processes spindle encoder feedback for heavy horizontal boring mills and large machining centers.

Feedback Input: Spindle encoder pulse signal Bus interface: Parallel backplane bus for real-time data exchange with CNC CPU and PLC boards

Onboard components: Spindle control processor IC, position counter, velocity regulation circuit, watchdog timer, signal filtering, address decoding logic

LED indicators: POWER, RUN, SPD, FAULT diagnostic lights

Hardware self-diagnosis: Spindle loop integrity test, watchdog monitoring, encoder signal check, backplane bus communication verification

Programming software: Fives Group proprietary CNC software for spindle parameter configuration, spindle tuning and board diagnostic testing

Electrical Parameters

Backplane supply: +5VDC Encoder supply: 5VDC

Power consumption: Max 8.6W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.99kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy CNC spindle control module

System compatibility

Compatibility description: 502-03782-02 belongs to Fives Group motion control board family. Compatible with Fives Group main CPU, spindle encoder and spindle drive amplifier. Widely deployed on heavy Fives Group horizontal boring mills.

Function

Function description: 502-03782-02 is dedicated spindle control board manufactured by Fives Group. It handles spindle speed regulation and spindle orientation control functions independent from axis motion processor. It reads spindle encoder feedback, compares target speed and actual rotation value, generates control instructions to spindle drive to realize constant surface speed control and spindle positioning for tool change. Onboard watchdog monitors program running state and triggers alarm upon abnormality. It is legacy spindle control spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert 502-03782-02 board into rack slot and secure gold finger connector. Connect shielded spindle encoder cable. Configure spindle parameters via Fives CNC software. Restore rack power, verify RUN and SPD LED indicators, test spindle speed adjustment and spindle orientation function.

Interface

Interface list: Backplane gold finger connector, spindle encoder signal screw terminal block,on-board POWER / RUN / SPD / FAULT LED indicators for Fives Group 502-03782-02.

Diagnostic

Troubleshooting: Spindle cannot rotate: Check encoder 5V supply, encoder wiring or spindle parameter setting error. FAULT LED lit: Watchdog timeout, encoder signal loss or backplane communication breakdown. Spindle speed fluctuation: Improper spindle gain, electromagnetic interference or aging signal receiver.

Product Brief

Brief description: 502-03782-02 is Fives Group legacy spindle control board,for spindle speed regulation and orientation control on heavy CNC boring mills,discontinued CNC spindle control PCB spare.