Fives Group 502-02823-00 High Speed Counter Module

Technical Specifications

Model： 502-02823-00

Brand： Fives Group

Product Type: Rack mount high speed counter PCB assembly for legacy CNC system

Module Feature:

Function: High speed counter module for Fives Group CNC platform. Captures high-frequency pulse signals from encoders or pulse generators, counts pulse quantity at high speed, converts pulse data into position value and transmits to CNC CPU for axis positioning and motion measurement on heavy horizontal boring mills and large machining centers.

Input signal: Differential / single-ended pulse signal Bus interface: Parallel backplane bus for bidirectional data exchange with CNC CPU

Onboard components: High speed counter IC, signal conditioning circuit, noise filter, address decoding logic, pulse input protection

LED indicators: POWER, SIG, COUNT, FAULT diagnostic lights

Hardware self-diagnosis: Pulse input detection, counter read-back test, backplane bus communication verification

Programming software: Fives Group proprietary CNC software for counter channel configuration and diagnostic testing

Electrical Parameters

Backplane supply: +5VDC Sensor input supply: 5VDC

Power consumption: Max 7.6W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.95kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy high speed counter module

System compatibility

Compatibility description: 502-02823-00 belongs to Fives Group CNC signal acquisition board family. Compatible with Fives Group main CPU and incremental pulse encoders. Widely deployed on heavy Fives Group horizontal boring mills.

Function

Function description: 502-02823-00 is high speed counter board manufactured by Fives Group. It is designed to receive high speed pulse signals from encoders. The onboard high-speed counting chip accumulates pulse numbers without occupying main CPU resources. The real-time position data is sent to CNC controller for closed-loop positioning control. Signal conditioning circuit suppresses industrial interference. It is legacy pulse counting spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power. Insert 502-02823-00 board into rack slot and secure gold finger connector. Connect shielded pulse signal cable to terminal. Configure pulse resolution parameters via CNC software. Restore power, verify SIG and COUNT LED indicators and test pulse capture and position reading function.

Interface

Interface list: Backplane gold finger connector, pulse signal screw terminal block,on-board POWER / SIG / COUNT / FAULT LED indicators for Fives Group 502-02823-00.

Diagnostic

Troubleshooting: No pulse count: Check 5V sensor supply, cable wiring or damaged input conditioning circuit. FAULT LED lit: Signal short-circuit, counter register error or backplane communication failure. Count value jump: Electromagnetic interference, poor shielding or aging counter IC.

Product Brief

Brief description: 502-02823-00 is Fives Group legacy high speed counter board,to collect high frequency pulse signals for position measurement on heavy CNC boring mills,discontinued CNC pulse acquisition PCB spare.