Fives Group 502-03907-02 Digital Output Module

Technical Specifications

Model： 502-03907-02

Brand： Fives Group

Product Type: Rack mount opto-isolated discrete digital output PCB assembly for legacy CNC system

Module Feature:

Function: Digital output module for Fives Group CNC platform. Receives control commands from CNC CPU, outputs isolated 24VDC switching signals to drive solenoid valves, contactors, relays and machine indicator lamps for heavy horizontal boring mills and large machining centers.

Signal type: 24VDC opto-electrical isolated digital output

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

Onboard components: Optocoupler isolation chips, output power driver circuits, overcurrent and short-circuit protection, surge suppression

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

Hardware self-diagnosis: Output channel status detection, short-circuit protection test, backplane bus integrity verification

Programming software: Fives Group proprietary CNC software for output address assignment and module diagnostic testing

Electrical Parameters

Backplane supply: +5VDC Field output supply: 24VDC

Power consumption: Max 7.0W

Mechanical & Structure:

Mounting: Rack slot mount with gold finger edge connector

Weight: 0.89kg

Protection class: IP20

Environmental:

Operating temperature: 0℃ ~ +55℃

Ambient humidity: 5~85% non-condensing

Certification: CE

Status: Manufacturer discontinued legacy digital output module

System compatibility

Compatibility description: 502-03907-02 belongs to Fives Group CNC I/O board family. Compatible with Fives Group CPU, digital input boards and other rack modules. Widely fitted on heavy Fives Group horizontal boring mills.

Function

Function description: 502-03907-02 is opto-isolated digital output board manufactured by Fives Group. It converts internal CNC logic signals into isolated 24VDC field output signals to actuate machine-side actuators. Optocoupler isolation separates CNC control circuit and field power circuit, preventing surge and noise damage to main controller. Built-in protective circuits cut off channel output under short-circuit condition. It is legacy digital output spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off rack +5V backplane power and 24VDC field power. Insert 502-03907-02 board into rack slot and secure gold finger connector. Wire actuator cables to output terminal block. Configure output addresses via Fives CNC software. Restore power, verify ACT and OUT LED indicators and test each output channel switching operation.

Interface

Interface list: Backplane gold finger connector, multi-channel 24VDC output screw terminal block,on-board POWER / ACT / OUT / FAULT LED indicators for Fives Group 502-03907-02.

Diagnostic

Troubleshooting: No output switching: Check 24V field supply, wiring connection or damaged output driver. FAULT LED lit: Channel short-circuit trigger, backplane communication failure or burned driver component. Intermittent output drop: Electromagnetic interference, poor rack grounding or aging optocoupler.

Product Brief

Brief description: 502-03907-02 is Fives Group legacy opto-isolated digital output board,to provide 24VDC switching signals for machine actuators on heavy CNC boring mills,discontinued CNC digital output PCB spare.