Woodward 5421-112 Discrete Output Interface Board

Technical Specifications

Model:5421-112

Brand:Woodward

Product type:Discrete output interface board assembly

Power supply:24 Vdc

Control function:Discrete signal output,relay and valve drive,status signal transmission,channel isolation protection

Communication:Internal system bus

Mounting:Rack mounting

Operating temperature:-40~70℃

Relative humidity:5~95% non-condensing

Weight:1.5kg

Certification:CE,UL

System compatibility

5421-112 belongs to Woodward turbine and engine control system family,matched with MicroNet and NetCon series controllers.Widely used in gas turbine,steam turbine and generator control cabinets.This is a discontinued legacy discrete output interface board for power unit maintenance spare replacement.

Function

5421-112 serves as Woodward 8-channel discrete output interface board.It receives control instructions from main controller and outputs discrete signals to drive external relays,solenoid valves and indicator lights for turbine auxiliary device control.Each channel is equipped with isolation circuit to prevent external interference from damaging the main control unit.It is the signal output interface component of Woodward rotating machinery control system.

Installation

Install 5421-112 in the control cabinet rack.Complete terminal wiring according to wiring drawing.Check power supply polarity and grounding before power-on.

Interface

‑Internal system bus connector

‑Field terminal block

‑LED channel status indicator

Circuit feature

Multi-channel isolated output circuit,equipped with ESD and surge suppression design.Reliable discrete signal output,strong anti-interference performance for power plant cabinet environment.

Feature

5421-112 is obsolete Woodward series spare part.Typical failures include channel output failure,terminal burnout,bus communication abnormal,LED indicator fault.Check board circuit and terminal pins before replacement.This board must match corresponding Woodward control system,direct substitution without inspection is not recommended.

Diagnostic

When channel no output,output abnormal or communication interruption occurs,the module will trigger system fault alarm and report fault code to the main controller.

Built‑in function

Discrete signal output,external relay and valve drive,signal isolation protection,used as Woodward series interface board assembly spare replacement.

Product Brief

5421-112 is Woodward old turbine series discrete output interface board for gas/steam turbine generator sets and power automation equipment.Confirm controller model matching before ordering.ESD protection required during handling and installation.