Fives Group 810-21758-03 Servo Drive Control Module

Technical Specifications

Model： 810-21758-03

Brand： Fives Group

Product Type: Servo amplifier control PCB assembly for legacy CNC machine servo unit

Module Feature:

Function: Servo drive control module for Fives Group CNC platform. Receives ±10V analog velocity command signal from CNC controller, executes closed-loop current, speed regulation, processes motor encoder feedback, outputs PWM drive signals to power stage for heavy horizontal boring mill feed axes.

Command Input: ±10V analog velocity command Feedback Input: Incremental encoder A/B/Z pulse Onboard components: Servo control processor, current sampling circuit, PWM driver, encoder receiver, overcurrent / overvoltage / overheat protection circuit

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

Hardware self-diagnosis: Power-on self-test, encoder signal check, current loop test, power device fault detection

Programming software: Fives Group proprietary servo setup software for loop gain tuning, axis parameter configuration and board diagnostic testing

Electrical Parameters

Control logic supply: +5VDC, ±15VDC Power stage supply: 200~480VAC (Depends on matched power module)

Power consumption: Max 9.5W (logic part)

Mechanical & Structure:

Mounting: Installed inside servo amplifier unit Weight: 1.05kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy servo drive control module

System compatibility

Compatibility description: 810-21758-03 belongs to Fives Group servo drive family. Matched with Fives analog CNC axis control boards and servo power unit. Widely used on heavy Fives horizontal boring mills.

Function

Function description: 810-21758-03 is servo control board manufactured by Fives Group. It works inside servo amplifier unit to control feed servo motor. It receives analog velocity command from CNC rack board, reads motor encoder feedback signal, runs current and speed closed loop algorithm and generates PWM signal to power IGBT module. It monitors overcurrent, overvoltage and overheat condition and triggers fault alarm to CNC system once abnormal. It is legacy servo drive control spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Disconnect main high voltage power of servo unit. Remove servo amplifier cover and replace 810-21758-03 board, secure connectors. Reconnect encoder cable and analog command cable. Load servo parameters and perform loop gain tuning via Fives software. Restore power, verify RUN and SERVO LED indicators, test motor jogging function.

Interface

Interface list: Analog command terminal, encoder signal terminal, power stage connector,on-board POWER / RUN / SERVO / FAULT LED indicators for Fives Group 810-21758-03.

Diagnostic

Troubleshooting: Motor no movement: Check ±15V control supply, analog command wiring or encoder cable fault. FAULT LED lit: Overcurrent trip, encoder signal loss or power device abnormality. Motor vibration during operation: Improper servo gain setting, ground loop noise or aging sampling circuit.

Product Brief

Brief description: 810-21758-03 is Fives Group legacy servo drive control board,receives analog command and controls servo motor for machine feed axes on heavy CNC boring mills,discontinued servo amplifier control PCB spare.