Fives Group 502-03786-02 Analog Output Module

Technical Specifications

Model： 502-03786-02

Brand： Fives Group

Product Type: Rack mount analog output PCB assembly for legacy CNC system

Module Feature:

Function: Analog output module for Fives Group CNC platform. Converts digital motion commands from CNC processor into ±10V analog velocity signals, transmits analog command to analog servo amplifiers to regulate motor speed for heavy horizontal boring mills and large machining centers.

Output range: ±10V analog velocity command Bus interface: Parallel backplane bus for bidirectional data exchange with CNC axis control board

Onboard components: Digital-to-analog converter chips, analog signal filtering circuit, signal isolation, offset and gain calibration circuit, short-circuit protection

LED indicators: POWER, DAC, OUT, FAULT diagnostic lights

Hardware self-diagnosis: DAC channel test, analog output voltage verification, backplane bus communication check

Programming software: Fives Group proprietary CNC software for analog offset/gain calibration and board diagnostic testing

Electrical Parameters

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

Power consumption: Max 8.0W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.96kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy analog output module

System compatibility

Compatibility description: 502-03786-02 belongs to Fives Group servo control interface family. Compatible with Fives Group axis control processor and ±10V analog servo drives. Widely deployed on heavy Fives Group horizontal boring mills.

Function

Function description: 502-03786-02 is analog output board manufactured by Fives Group. It receives digital motion setpoints from CNC axis controller and converts the digital value into ±10V analog voltage signal to control servo motor velocity. Onboard calibration circuit allows tuning offset and gain to match servo amplifier characteristics. Analog filtering reduces high frequency noise interference. It is legacy analog servo command spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V and ±15V power. Insert 502-03786-02 board into rack slot and secure gold finger connector. Connect shielded analog cable to terminal block. Run offset and gain calibration via CNC software. Restore power, verify DAC and OUT LED indicators, test analog output voltage and axis jog function.

Interface

Interface list: Backplane gold finger connector, analog signal screw terminal block,on-board POWER / DAC / OUT / FAULT LED indicators for Fives Group 502-03786-02.

Diagnostic

Troubleshooting: No analog output: Check ±15V reference supply, wiring or DAC chip failure. FAULT LED lit: Output short circuit, backplane communication error or DAC register fault. Axis speed unstable: Ground loop noise, poor shielding or drifting analog components.

Product Brief

Brief description: 502-03786-02 is Fives Group legacy analog output board,converts digital motion commands to ±10V analog velocity signals for servo amplifiers on heavy CNC boring mills,discontinued CNC analog control PCB spare.