Category: Woodward

MicroNet TMR features include:

IEC61508 SIL-3 certified

Network-safe CPUs

Simplex or redundant CPU configurations

VME-based (full and narrow chassis)

Real-time multitasking VxWorks® operating system

Woodward’s proven Graphical Application Programmer (GAP) software and support tools

Deterministic update rates as fast as 5 milliseconds

Improves control system availability and reliability

SNTP-compliant for time synchronization

Expandable with redundant real-time networks in CAT-5 or fiber optic configurations

Ethernet communications

Simplex or dual power

Modular I/O

Events are timestamped to 1 millisecond

Hot-swap modules for in-line maintenance

MicroNet TMR features include:

Speed and load control

Temperature and process control

Combustion control

Anti-surge control

System sequencing and package assist control

Tight load rejection performance

Sophisticated DLE fuel control algorithms

Initial surge detection

Long-term naval program

Alarm + shutdown communications

Operating Conditions:

Temperature (0 to 55) °C / (32 to 131) °F Ambient Air Temperature Range

Shock US MIL-STD-810C, Method 516.2-1. Procedure 1B

Vibration Lloyd’s ENV2 Test #1

Emissions * EN61000-6-4

Immunity * EN61000-6-2

Achilles Level 1 Certification

Certifications * CE, UL/cUL, CSA (Class I, Zone 2), LR for ENV1 and ENV2. ABS, GOST

Other international compliance (using MicroNet safety modules) TÜV certified to IEC 61508 Part 1-7.

Functional Safety of Electrical/Electronic/Programmable Systems, Electronic Safety-Related Systems

Available inputs and outputs include

 Magnetic pickups (MPUs) and proximity probes

 Discrete I/O

 Analog inputs/outputs

 Thermocouple inputs

 Resistance Temperature Devices (RTD)

 Proportional and integrated actuator drives (integrated AC and DC position inputs)

 Ethernet and serial communications

 Distributed analog, discrete, thermocouple and RTD I/O available with LinkNet HT

Woodward’s MicroNet TMR (Triple Modular Redundancy) controller is a customizable digital control

platform that reliably controls and protects steam, gas turbine and compressor trains.

These are system-critical applications where safety issues can arise or cause significant economic loss.

This triple power supply structure provides maximum protection against single or multiple points of

hardware failure.

The controller’s dedicated TMR® Discrete I/O Module is designed for critical discrete circuits.

The module accepts discrete inputs and distributes them to each individual core section,

as well as outputs relay contacts to drive discrete application logic.

The module’s special TMR® outputs utilize a six-relay configuration and integrated potential fault

detection logic that allows any one or two relays to fail without affecting the integrity of the output

contacts.

This configuration allows routine relay testing and in-circuit repair without compromising output or

system integrity.

Designed from the ground up as a turbine control system, the MicroNet TMR® controller’s actuator

drive module is available with the use of single or dual redundant coils,

Proportional or integral turbine valve servos with AC or DC feedback position sensors using single or dual

redundant coils.

The MicroNet TMR® controller can accommodate any combination of Woodward MicroNet I/O modules

and LinkNet HT distributed I/O to provide maximum application flexibility.

Description

The MicroNet TMR® control platform features a ruggedized rackmount chassis

with in-line replaceable I/O modules and triple modular architecture for 99.999% availability.

This triple modular redundancy-based system consists of three independent cores

(A, B, and C) housed in the platform’s compact chassis.

Each core section includes its own CPU, CPU power supply, and up to four I/O modules,

which can be used for simplex I/O, redundant I/O, triple redundant I/O, or any combination of

redundancy.

I/O can be expanded via a system expansion chassis or the ruggedized LinkNet HT Distributed I/O.

The platform’s high-density modules and integrated application software reduce

troubleshooting time by providing first-out indication of monitored system events.

These specialized modules can time stamp discrete events in 1 millisecond and analog events in 5

milliseconds.

The MicroNet TMR® utilizes two power supplies, each supplying power to the controller from a separate

power source.

Within each power supply are three independent power converters, one each for the CPU and I/O

sections.

This triple power supply structure provides maximum protection against single or multiple points of

hardware failure.

The controller’s dedicated TMR® Discrete I/O Module is designed for critical discrete circuits.

Description

The 9905/9907 series of the Woodward 2301A controls load sharing and speed of generators driven by diesel or gasoline engines, or steam or gas turbines. 

These power sources are referred to as “prime movers” throughout this manual.

The control is housed in a sheet-metal chassis and consists of a single printed circuit board. All potentiometers are accessible from the front of the chassis.

The 2301A provides control in either isochronous or droop mode.

The isochronous mode is used for constant prime mover speed with:

 Single-prime-mover operation;

 Two or more prime movers controlled by Woodward load sharing control systems on an isolated bus;

 Base loading against an infinite bus with the load controlled by an Automatic Power Transfer and Load (APTL) Control, an Import/Export Control, a Generator Loading Control, a Process Control, or another load-controlling accessory.

The droop mode is used for speed control as a function of load with:

 Single-prime-mover operation on an infinite bus or

 Parallel operation of two or more prime movers.

The following is an example of the typical hardware needed for the 2301A system controlling a single prime-mover and generator:

 A 2301A electronic control

 An external 20 to 40 Vdc power source for low-voltage models; 90 to 150 Vdc or 88 to 132 Vac for high-voltage models

 A proportional actuator to position the fuel-metering device 

 Current and potential transformers for measuring the load carried by the generator.

Features

 Actuators and self-cleaning valves are 4 times stronger with ‘sludge buster’ technology

 Patent-pending ‘Sludge Buster’ cleaning technology

 Advanced control algorithms and diagnostics

 Redundant optimum control configuration

 Same mounting base footprint as the CPC*

 Enhanced feature benefits:

 Removes 40 μm size dirt and reduces or eliminates filter/screen service work

 Removes sludge build-up without compromising operational integrity

 Industry-leading stability and buffer-free, precise throttle control

 Configuration flexibility to meet your system needs

 Easily upgrade your existing CPC* or Voith E360 I/H

CPC-II Upgrade Programme

(Current Pressure Converter, Generation II)

Maximise uptime with Woodward’s Dirt Buster technology Upgrade with Woodward’s CPC-II Electrohydraulic Current Pressure Converter

your Woodward CPC* or Voith E360 I/H throttle controller.

The CPC-II solves the turbine market’s number one reliability problem: oil contamination.

CPC-II:

 removes 40 μm sized dirt, reducing or even eliminating turbine control filter maintenance altogether!

 removes sludge build-up without compromising operational integrity

 features industry-leading stability and snubberless precision throttle control

 Easily upgrades existing CPC or Voith converters

The power of the CPC-II is combined with Woodward’s industry-leading control point algorithms, advanced diagnostics and PC-based service tools.

This powerful solution provides stable control during normal turbine operation and trouble-free control in the event of a plant failure.

By minimising process overshoot or undershoot conditions, you can maximise uptime and increase productivity.

Product Description

Part of the Woodward Electric Governor Series is the actuator model 8256-008.This is a speed control system that is compatible with a variety of engines.

This model can be used on gas, petrol or diesel engines. The product rotates clockwise to ensure the most efficient use of fuel.

To use the Model 8256-008 actuator, the engine’s speed control must be compatible with the system.

It is powered by a 24V battery and weighs just over a pound. The supply voltage for this model is a minimum of 10 Vdc and a maximum of 16 Vdc.

The Model 8256-008 has a maximum power consumption of 60 watts. It is also equipped with an overtravel feature

The ambient temperature around this EPG should be maintained between -40 and 200 degrees Fahrenheit.

Mounting of this product must be done on sheet metal and should be done with torque screws.

This Woodward model is constructed from corrosion-resistant materials to ensure a longer product life.

The EPG 8256-008 model can be operated in dcs-sis.com single phase step-down control and will then share the load when operated in step-down mode.

The 2301E provides load distribution and speed control for generators driven by diesel or gas engines.

Using the built-in flexible configuration software, application variants can now be selected using an external computer (PC).

Changing the application to suit the engine speed range, gear teeth and selecting forward or reverse action is just a software setup away.

The 2301E controller is backward compatible with the existing 2301D product as it has the same footprint and mounting configuration.

The new controller ensures the continued dcs-sis.com availability of a proven and versatile product with enhanced features:

-Separate RS-232 and RS-422 serial ports, both with 9-pin connectors

-Additional status LEDs for power and RS-422 communication

-Failure data logging feature that collects 16 seconds of data every 10 milliseconds during shutdown, peak speed, and load detection events

-Low current PWM output for driving Woodward L-Series, F-Series, P-Series and PISC actuators

-New terminal block accommodates additional I/O, with most terminals located in the same location as the 2301D model.

-Major compliance approvals

-Engine/generator or pump applications

-Multiple dynamics

-Manifold Air Pressure (MAP) limiter

-Torque limiter

-Low speed sensing capability

-Remote speed and load reference

-Soft load transfer

-Automatic idle to rated switching

-Load dump/load pulse option

-Idle down function

-Optional Modbus® serial communication

-Adaptive speed sensing algorithm

-Two serial ports

-Data logging function

-2301E ToolKit service tool or Control Assistant programmable

-Common or hazardous location chassis

The 505DR® Dual Redundant Turbine Controller is a state-of-the-art digital control platform designed to reliably control and protect single-valve and single-pump steam turbines.

The benefits of dual redundancy maximise turbine reliability and availability.

Redundancy is managed at the operating system level using Woodward’s RTN (Real Time Network), allowing ultra-fast switching and ‘bufferless’ transitions.

The controller utilises the same unique PID architecture as the proven 505XT, making it the ideal controller for controlling speed, load,

parameters such as pumping collector pressure, exhaust collector pressure or connection line power. The dual redundant version inherits features such as the Opti-Tune self-tuning PID and ratio limiter.

The controller includes the following turbine protection dcs-sis.com features to ensure that the turbine and its driven loads (compressors, pumps, generators) operate within design limits:

– 3 critical speed avoidance bands

– Overspeed prediction and shutdown protection

– Configurable under- or over-pressure shutdown logic

– Minimum and maximum speed and load settings

– Maximum low-pressure stage overpressure limitation

– Minimum high pressure stage flow limiting

Ethernet and serial communications allow for easy integration into plant controls or process control systems.

The 505DR can be configured with an optional integrated user interface, including an 8.4-inch multi-language graphical display.

Part 8271-468 Generator Loading Control from Woodward.

It runs on 115/230 volt AC power and has a beige case. This unit is primarily used in commercial applications.

When used in conjunction with the Woodward Load Sharing and Speed Control System, it allows you to adjust the electrical load being carried by the generator set.

Product Description

The standard commercial features of dcs-sis.com the Generator Load Control Unit 8271-468 have been programmed into the unit.

This allows the unit to control user-selected electrical load adjustment of the generator set.

Operation and adjustment of the 8271-468 to the desired specifications is highly dependent on the unit’s use of the power system.

It can be used with an isolated power system or with a local system connected in parallel with an infinite bus.

In an isolated system, the 8271-468 generator load control is used in conjunction with each load sharing and speed control.

The 8271-468 is wired in parallel with these two units to detect generator loads.

The output of this unit is designed to bias the line voltage to control a portion of the total system load.

If connected in parallel to an infinite bus, the voltage at the generator load control device load signal test socket should be measured when the unit is fully loaded.

In an isochronous parallel application, Generator Load Control Part No. 8271-468 regulates power while the utility maintains frequency.

The advantage of this control system over standard parallel buck operation is that, when separated from the utility, the

The now isolated busbar is automatically under isochronous speed control, eliminating the need for the operator to readjust the speed setting.

Within Woodward Equipment’s line of generator controls, the 8271-468 has the widest market availability compared to other components.