Fives Group 502-03657-03 Spindle Control Interface Module

Technical Specifications

Model： 502-03657-03

Brand： Fives Group

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

Module Feature:

Function: Spindle control interface module for Fives Group CNC platform. Outputs ±10V analog speed command signals to spindle drive, receives spindle encoder position and speed feedback signals, transmits data back to CNC CPU for spindle speed regulation, orientation and rigid tapping function on heavy horizontal boring mills and large machining centers.

Command output: ±10V analog velocity command Feedback input: Differential incremental spindle encoder signal

Bus interface: Parallel backplane bus for data exchange with CNC CPU

Onboard components: D/A converters, differential encoder receivers, signal buffer and noise filtering circuits, surge protection

LED indicators: POWER, CMD, ENC, FAULT diagnostic lights

Hardware self-diagnosis: Encoder signal loss detection, analog output overrange check, backplane communication integrity test

Programming software: Fives Group proprietary CNC software for spindle axis scaling and module diagnostic testing

Electrical Parameters

Backplane supply: +5VDC Analog reference supply: ±15VDC

Power consumption: Max 8.6W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 1.02kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy spindle control interface module

System compatibility

Compatibility description: 502-03657-03 belongs to Fives Group CNC spindle interface family. Compatible with Fives Group CPU, analog spindle drives and incremental spindle encoders. Widely deployed on heavy Fives Group horizontal boring mills.

Function

Function description: 502-03657-03 is spindle interface board manufactured by Fives Group. It serves as signal bridge between CNC controller and spindle drive unit. It converts digital spindle speed instructions from CPU to ±10V analog command to control spindle rotation speed. Meanwhile, it captures encoder feedback for spindle closed-loop control, spindle orientation and rigid tapping. Shielded signal circuits reduce electrical noise interference. 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 and ±15VDC analog power. Insert 502-03657-03 board into rack slot and secure gold finger connector. Connect shielded analog command cables and encoder cables to terminal block. Calibrate spindle gain and offset parameters via CNC software. Restore power, verify CMD and ENC LED indicators and test spindle speed and orientation function.

Interface

Interface list: Backplane gold finger connector, analog command screw terminals, encoder D-sub connector,on-board POWER / CMD / ENC / FAULT LED indicators for Fives Group 502-03657-03.

Diagnostic

Troubleshooting: Spindle no rotation: Check ±15V reference supply, analog wiring or D/A circuit damage. FAULT LED lit: Encoder signal loss, analog short circuit or backplane communication failure. Speed fluctuation: Poor grounding, ground loop noise or aging analog component.

Product Brief

Brief description: 502-03657-03 is Fives Group legacy spindle control interface board,with ±10V analog speed command and spindle encoder feedback acquisition for heavy CNC boring mills,discontinued CNC spindle interface PCB spare.