Woodward 5430-856 505 Turbine Controller

Technical Specifications

Model:5430-856

Brand:Woodward

Product type:505 series digital turbine governor controller

Power supply:24 Vdc

Control function:Turbine speed regulation,load control,extraction/admission control,valve position control,system self-diagnosis,alarm output

Communication:RS232 serial port,internal system bus

Mounting:Panel mounting

Operating temperature:-40~70℃

Relative humidity:5~95% non-condensing

Weight:1.72kg

Certification:CE,UL

System compatibility

5430-856 belongs to Woodward 505 turbine control system family,applied for single valve steam turbine,single extraction or admission turbine units.Widely used in steam turbine generator control cabinets.This is a discontinued legacy digital turbine controller for power unit maintenance spare replacement.

Function

5430-856 serves as Woodward 505 digital turbine governor.It adopts microprocessor core to realize turbine speed closed-loop control,load regulation and extraction/intake pressure control.It can drive hydraulic actuator to adjust steam valve,realize turbine start-up,synchronization,load shedding and overspeed protection logic.The front panel integrates LCD display and membrane keyboard for local parameter setting,real-time data viewing and fault code query.It supports computer communication for remote configuration and data monitoring.

Installation

Install 5430-856 on cabinet front panel.Complete speed probe,actuator and power wiring according to wiring drawing.Check wiring and grounding before power-on.

Interface

‑RS232 communication port

‑Speed sensor input terminal

‑Actuator drive output terminal

‑Digital input/output terminal block

‑Front LCD and keypad

Circuit feature

High precision closed-loop control circuit,equipped with ESD and surge suppression design.Stable regulation performance,strong anti-interference performance for power plant cabinet environment.

Feature

5430-856 is obsolete Woodward series spare part.Typical failures include speed measurement abnormal,valve output drift,display fault,communication interruption.Check mainboard circuit and terminal pins before replacement.This controller must match corresponding turbine actuator and speed probe,direct substitution without inspection is not recommended.

Diagnostic

When overspeed alarm,speed loss,actuator drive abnormal or internal fault occurs,the controller will trigger relay alarm and display fault code on local panel.

Built‑in function

Turbine speed and load closed-loop control,extraction pressure regulation,overspeed protection,local HMI operation,used as Woodward 505 series turbine governor controller spare replacement.

Product Brief

5430-856 is Woodward old turbine series digital governor controller for single extraction steam turbine generator sets and power automation equipment.Confirm actuator and speed probe model matching before ordering.ESD protection required during handling and installation.