Woodward 5415-623 505 Turbine Governor Controller

Technical Specifications

Model:5415-623

Brand:Woodward

Product type:505 series digital turbine governor controller

Power supply:DC24V

Control function:Speed PID regulation,load control,extraction/admission valve regulation,start-stop sequence management,interlock & trip protection,dual actuator drive output,local HMI operation

Communication:Modbus,RS232,RS422 serial port

Mounting:Rack mount

Operating temperature:-20~60℃

Relative humidity:5~95% non-condensing

Weight:4.13kg

Certification:CE,UL

System compatibility

5415-623 belongs to Woodward 505 turbine control system family,designed for extraction,admission and condensing steam turbines.Widely used in steam turbine generator control cabinets.This is a discontinued legacy turbine governor controller for power unit maintenance spare replacement.

Function

5415-623 serves as high precision Woodward 505 turbine governor controller.It collects rotational speed signals from magnetic pickup sensors,runs high-speed PID algorithm to regulate main valve and extraction/admission valve for turbine speed and load stabilization.With front two-line LCD and keypad for on-site parameter setting,real-time monitoring and fault diagnosis.It integrates turbine startup logic,overspeed protection and emergency trip function.Built-in hardware watchdog circuit to prevent abnormal control output.It acts as the core speed,load and extraction control unit of steam turbine generator system.

Installation

Mount 5415-623 inside turbine control cabinet.Complete speed sensor,actuator and I/O wiring according to wiring drawing.Backup turbine parameters before replacement,verify system boot and governing function after power-up.

Interface

‑Magnetic pickup speed input terminal

‑Dual actuator drive output port

‑Digital & analog I/O terminal block

‑Serial communication port

‑Front panel HMI keypad & LCD display

Circuit feature

Rugged metal casing design,equipped with surge and ESD suppression circuit.Stable speed signal acquisition,strong anti-interference performance for power plant cabinet environment.Standard factory firmware preloaded.

Feature

5415-623 is obsolete Woodward series spare part.Typical failures include speed signal loss,control oscillation,display failure,turbine trip.Check controller body and terminal pins before replacement.This controller must match corresponding turbine system,direct substitution without parameter backup and function test is not recommended.

Diagnostic

When speed measurement fault,valve control deviation or system trip occurs,the controller triggers corresponding alarm codes and sends fault signal to turbine control system.

Built‑in function

Turbine speed & load control,extraction/admission valve regulation,start-stop sequence logic,overspeed trip protection,local HMI operation,Modbus remote communication,used as Woodward 505 series digital turbine governor controller spare replacement.

Product Brief

5415-623 is Woodward old 505 series digital turbine governor controller for extraction/condensing steam turbine generator sets and power automation equipment.Confirm controller model matching before ordering.ESD protection required during handling and installation.