Category: Woodward

New Features

USB connectivity to PC

ToolKit configuration support

Password protection to all variants

Same look & feel as SPM-D

Drop-In replacement

DESCRIPTION

Woodward understands the time-intensive nature of Power Generation projects. Ensuring the longevity of components is one way we can make our customers successful. Woodward has supplied and supported the well-established SPM-D line of synchronizers for 20+ years. With the state of the art Drop-In replacement successor, SPM-D2 the life of this synchronizer line is now extended.

All of the SPM-D2 synchronizers are password protected and are configurable either through HMI as before or through ToolKit configuration tool with USB connectivity.

The SPM-D2-10 series are microprocessor-based synchronizers designed for use on two or three phase AC generators equipped with Woodward or other compatible speed controls and automatic voltage regulators. The SPM-D2-10 synchronizers provide automatic frequency, phase and voltage matching using either analog- or discrete output bias signals. These synchronizers are applied to a wide range of prime movers and generators, as its control signals may be set to fit several types of gensets – from fast reacting diesel engines to soft reacting gas turbines.

The SPM-D2-10 synchronizers are available in 3 base models:

 SPM-D2-10 … : provides 1-phase / 2-wire voltage measurement with options for analog and/or discrete biasing signals and wide range power supply

 SPM-D2-10 …/YB: provides 3-phase / 4-wire voltage measurement with discrete biasing signals and option for wide range power supply

 SPM-D2-10 …/PSY5: provides 1-phase / 2-wire voltage measurement with discrete biasing signals, option for wide range power supply and 2 sets of switchable parameter set.

FEATURES

 Phase match or slip frequency synchronization with voltage matching

 Two-Phase or three-phase true RMS voltage sensing of generator and bus with Class I accuracy

 Selectable operating modes like SPM-A (Run, Check, Permissive and Off)

 Synch-Check and synchronization time monitoring

 Dead bus closing of CB on demand

 2 setting blocks, each containing 7 configurable parameters (in PSY5 variants) selectable www.honeywell-diver.com through DI: Frequency/Voltage control dead-band, Frequency/Voltage control time pulse, Frequency/Voltage control gain, Circuit breaker time compensation

 Control outputs: Discrete raise/lower for speed and voltage in all variants, | X and XN variants:

also configurable analog signals (Voltage, Current and PWM)

 Voltage and frequency control in isolated operation

 Two line bright liquid crystal display for operation, alarm, measuring values visualization and parametrization

 Front face with synchronoscope and indication of breaker state/control activity

 Multi-level password protection of parameters

 Woodward ToolKit™ software for configuration via USB

 Two built-in languages: English, German

Description

APECS™ 0175 linear actuators deliver precise positioning and form the foundation of a full electronic governing system.

Many of the moving parts normally associated with electric actuators are eliminated, prolonging the MTBF (mean time between failure).

The actuator design employs the principle of variable reluctance for consistent force over the entire stroke.

This simple design of a proportional electric linear actuator utilizes a linear armature whose magnetic force is proportional to the input current to the coil.

These actuators are easy to install by mounting near the fuel system with a direct connection to the fuel control rod or level.

In most installations, the normal rotary-torotary connection is eliminated, resulting in a more trouble-free and accurate control system.

APECS 0175 actuators are suitable for installation on diesel, www.honeywell-diver.com gasoline, or natural gas engines with fuel system force requirements of less than 4.0 pounds (17.8 N) of force.

Woodward also manufactures 0175 actuators integral to the engine block or fuel pump.

 All-purpose, externally mounted

 Pull or push actuation

 Flange or base mount

 Internal spring return to minimum fuel position

 Corrosionresistant, plated steel housing, and base or flange

 Precise engine speed control when used with APECS electronic controllers

 Variety of mounting styles, plungers, terminations, and springs available

Applications

Provides proportional fuel control for construction, industrial, and agricultural equipment.

1.75-inch (44.4 mm) diameter spring-return actuator, pull or push models, three spring types available.

Electrical Specifications

Stroke 0.75 inch (19 mm) minimum

Force 3.5 lb (15.6 N) @ 23 °C (with SI spring, normal current)

Work Rating 0.3 lb-ft (0.4 N-m)

Nominal Rated Current 4.3 A (12 V [dc]); 2.3 A (24 V [dc])

Response Time 30 ms for 10 % to 90 % of stroke

Resistance (nominal) 2.80 Ohms (12 V); 10.63 Ohms (24 V)

Mechanical Specifications

Operating Temperature –40 °F to +185 °F (–40 °C to +85 °C)

Vibration 15 G’s (3 planes, 1 h/plane 50 Hz to 1000 Hz sweep;

3 planes, 1 h/plane at first resonant frequency)

Shock Designed for US MIL-STD-810F, Method 516.5,

Section 4.5.2: Procedure 1: 40 G peak

The CPC-DX 10 bar, 2 zone, redundant, has an enhanced dynamic dual transmission current-to-pressure converter skid for on-line (automatic and manual switching) service capability for uninterrupted operation to position single acting turbine valve servos in critical applications.

Features and Functions

Woodward’s redundant skid-mounted current-to-pressure converter (CPC-DX) is an electro-hydraulic pressure-regulating control valve for positioning single-acting steam turbine valve servos/actuators.

The redundant version of the CPC-DX accepts a 4-20 mA pressure demand signal and accurately controls oil pressure to precisely position the single-acting steam turbine speed control valve.

Accurate and stable steam valve control is directly related to increased steam turbine speed and load control and reduced mechanical wear on the system.

The integrated design of the CPC-DX redundant version allows for the cost-effective purchase and installation of a hydraulic assembly that provides all the isolation and support benefits of a fully segmented current-to-pressure converter.

Manual isolation valves are included in the package, allowing the user to easily repair or replace each individual current-to-pressure converter.

Both automatic and manual transfer logic is www.honeywell-diver.com available for this skid block assembly, depending on the design of the system.

The skid block’s automatic transfer logic simplifies system design because it does not require external relay/switching logic to operate.

This minimises wiring at the converter-to-converter and control-to-converter interfaces.

The CPC’s configurable alarm/shutdown logic allows the user to easily configure which system conditions force an automatic transfer from the master CPC to the slave CPC.

The manual transfer feature is also available for systems where the user wishes to switch between pressure converters via external logic or manual switching.

The master select discrete input is used to allow the user to easily and quickly select the desired control CPC.

An integrated oil pressure gauge allows the user to visualise which converter is in control and verify the skid’s output oil collector pressure level.

Discrete output relay contacts can also be connected to system indications (lights, lamps, plant DCS) to assist in system operating condition monitoring.

Features:

Anti-fouling .

. No small passages to block .

.111 N (25 lb) rotary chip shear .

. Self-cleaning valve design

Automatic and manual switching

Fast changeover time

. Minimised system disturbances

Precise pressure control

Increased reliability

. High Pressure Signal Selection Design

. In-line Repairable

. Master/Slave Logic

Includes isolation valves

Protected with padlock

Large pressure gauge

Remote master/slave indication

Compact size

Available in 10 and 25 bar models

Division 2 and Zone 2 Hazardous Location Approved

OVERVIEW

The 2301E-J is a microcomputer based digital controller for engine genset control with automatic load sharing.

The controller is designed to control medium to high speed diesel engines or medium to high speed gas engines.

Control speed range (for medium to high speed engines): 400-3600 rpm.

Similar in function to the 2301A LSSC, the 2301E-J is Woodward’s traditional analogue controller plus a DRU (Digital Reference Unit) with soft load/unload.

The 2301E-J also has the same features as the 2301D.

While the engine is operating, the 2301E-J can switch its operating mode from isochronous to sag and vice versa without buffering.

The 2301E-J can be switched to the 2301D by using the same function as the 2301 LSSC, the 2301A LSSC, the 2301D LSSC, and the 721DSC with Automatic Load Sharing,

723DSC with automatic load sharing, or other Woodward Electric controls with load sharing www.honeywell-diver.com capability to operate in automatic load sharing mode.

In conjunction with an external inlet/outlet controller, the 2301E-J can control the inlet/outlet power to the mains (i.e., commercial bus) by simulating a remote speed setting signal (optional feature).

The 2301E-J can operate in isochronous mode, isochronous base load mode, kilowatt drop mode, normal speed drop mode, and mains parallel operation mode with GCP/EGCP.

In Isochronous operation mode, the 2301E-J can perform the following operations

– Parallel operation with multiple engine-generator sets connected to the bus via automatic load sharing functions (including soft load and soft unload).

– Base load operation in isochronous mode. (The load level can be preset or manually adjusted to the desired level using discrete or analogue inputs).

– Single engine generator operation. (Speed reference is manually adjusted to the desired level via discrete or analogue inputs).

In kW down operation, the 2301E-J can perform the following operations:

– Run in parallel with the mains. (Load level or speed reference preset or manually adjusted to the desired level via discrete or analogue inputs).

– Parallel operation with other engine generator sets. (Manual adjustment of the speed reference to the desired level via discrete or analogue inputs).

– Single engine genset operation. (Manual adjustment of the speed reference to the desired level via discrete or analogue inputs).

– In reduced speed operation, the 2301E-J can perform the following operations:

– Run in parallel with the power supply. (Manually adjust the load level or RPM reference to the desired level via the discrete inputs or analogue inputs).

– Operate in parallel with other engine generator sets. (Manually adjust the load level to the desired level via the discrete inputs or analogue inputs).

– Single engine genset operation. (Manually adjust the speed reference to the desired level via the discrete or analogue inputs).

The 2301E-J system has the following inputs/outputs:

– 1 kW sensing input, including 3-phase PT inputs and 3-phase CT inputs

– 1 speed sensing input (MPU input)

– 2 analogue inputs for (4-20 mA) current signals or (±2.5 V, 1-5 V, or 0-5 V) voltage signals

– 8 discrete inputs

– 1 actuator drive circuit

– 1 analogue 4-20 mA output (optionally with signal display via this output)

– 4 discrete outputs (low-side actuator; max. 200 mA potting current)

– 2 serial ports (RS-232 and RS-422)

The 2301E-J system has the following features:

– Speed control: isochronous operation, kW down operation, speed down operation

– Load control: isochronous load sharing, isochronous base load, soft loading/unloading

– Equal speed/deceleration operation transfer function when generator is loaded

– Fuel Limiters: Start Fuel Limiter, Torque Fuel Limiter, Manifold Fuel Limiter, Maximum Fuel Limiter

Equipment required to operate the engine generator set with the 2301E-J:

– 2301E-J Controls

– 24 Volt DC Power Supply

– Speed sensing device (MPU, etc.)

– Actuator to drive fuel rack or gas valve (proportional)

– CT and PT for generator kW sensing or analogue kW signals

The 2301E-J requires a nominal 24 Vdc voltage source. (Supply voltage range is 18 to 36 volts DC).

The controller is mounted in a sheet metal chassis and consists of a printed circuit board.

Functions

The 2301E-J has speed control, load control, equal speed/no load transfer, and fuel limiter functions.

Speed Control Function

– Rated speed range of 400-3600 rpm

– Constant speed speed control

– kW Reduced speed control

– Simple derating control is selectable (when selected, the load control function is not available)

– Idling/rated speed switching by discrete input signal

– Speed reference up/down using discrete input signals

– Fast synchronisation using analogue speed bias signal from synchroniser

– (Optional) Speed reference manipulation function using remote analogue signal

– Single point control gain setting (optional)

– A control gain curve consisting of 5 points with 4 ramps can be mapped to the engine to change gain under various operating conditions.

– Dual power function to switch control power according to engine load

Load control function

– Automatic isochronous load sharing function (including soft load handling from the generator breaker close to the start of automatic load sharing)

– kW Initial loading function after the generator breaker is closed in down operation.

– Automatic soft unloading function (generator breaker open output signal is unloading trip level)

– Asynchronous base load operation (optional remote load setting function)

– kW descending operation (remote load setting function via remote speed setting signal)

– Generator load operation using the speed down function. (The load control function is not applicable to speed drop operation).

Fuel Limiter Function

The 2301E-J has the following six fuel limiter functions:

– Start-up fuel limiter (including lower limit, upper limit, and slope from lower limit to upper limit)

– Maximum Fuel Limiter

– Torque limiter (5 points and 4 ramps)

– Boost Fuel Limiter (optional) (5 points and 4 ramps)

– Discrete Input Fuel Limiter

– Fuel limit is cancelled by discrete input signal

Equal Speed/Idle Switching Function

– Isochronous/idle switching by discrete input signal

– Trouble-free switching from isochronous operation to kW down operation

– Load ramp from kW load drop level when connected in parallel with the utility to isochronous load sharing level when connected in parallel

Isochronous base load operation

– Base load set point raise/lower function with discrete inputs

– Generator kW load remains constant regardless of utility frequency

– Base load set point raised/lowered by analogue remote signal

APPLICATIONS

The 2301E-HT for Francis Turbines is a standard off-the-shelf control system designed to control small Francis turbines.

This turbine controller contains specially designed algorithms and logic to start, stop, control, and protect the turbine.

With two serial communication ports, users can easily connect the 2301E-HT to a plant or process control system.

The controller’s inputs, outputs and status can be monitored and all start/stop or enable/disable commands can be issued via industry standard Modbus® RTU.

The controller can be configured in the field using Control Assistant software installed on an external PC.

Description

The control is housed in a sheet metal enclosure for general premises and consists of a single printed circuit board.

The 2301E-HT controller is designed for turbine control.

It includes three PID controllers (offline, online and load), startup routines and a variety of www.honeywell-diver.com protection functions (overspeed, etc.) that can be configured by the user to meet the requirements of a specific turbine application.

The 2301E-HT can be configured by the user to use different PID controllers, start-up routines, discrete and analogue I/O functions without the need for a dedicated control engineer.

The 2301E-HT controls the speed and load of a Francis hydraulic turbine in a generator application with a single gate analogue output.

Features.

Field configurable optional start (auto/manual)/stop/unload routines

Liquid level control (pond or tailrace)

Creep detection

Local/remote control

Generator circuit breaker logic

Horizontal switching of speed, gate position and loads

Overspeed test logic

Speed/descent (power and position)/base load control

Remote analogue setpoints for speed, level and power

Selectable actuator outputs (4-20mA/0-200mA/0-20mA)

Dual speed inputs

Linknet hyperthreading extension function

Speed/load/gate switching

Brake Permit Logic

Gate Limit Values

Breaker open commands

Trips and alarms

Serial port communication (RS-232 or RS422)

System Protection:

Overspeed protection logic

Nondisturbance switching between control modes

Local/remote control priority

Part Number 8237-2046: Francis Turbine 2301E-HT

2301E-HT includes

 1 Actuator driver, 4-20 mA, 0-20 mA, 0-200 mA

 2 MPU speed sensor

 1 configurable analogue output

 2 configurable analogue inputs

 8 discrete (switching) inputs – 5 fixed, 3 configurable

 4 discrete (relay driver) outputs – 1 fixed, 3 configurable

 RS-232 Communications Port: Modbus® RTU or Service/Configuration

 RS-422 Communications Port: Modbus RTU

 CAN Communication Port: LINKnet HT® I/O Expansion

The 2301E-HT has an operating temperature range of -40 to +70 °C (-40 to +158 °F).

Pre-ignition chamber spark plugs for fast, consistent ignition of thin-burning natural gas engines

Woodward’s Fast Turbulent Ignition (FTI) provides fast, consistent ignition of gaseous fuel mixtures in internal combustion engines.

It results in more uniform and complete fuel combustion, increased engine efficiency and improved exhaust emissions.

The FTI is designed to optimise the operation of high-performance, high BMEP, lean-burn natural gas engines used in stationary power applications.

Features and Functions

Large bore engines using dilute gas fuel mixtures typically experience slower fuel burn rates and incomplete combustion.

These conditions reduce combustion efficiency and result in problematic exhaust emissions.

Typical J-gap spark plugs attempt to address these performance issues by increasing spark energy, which can shorten spark plug life.

To counteract the shortened spark plug life, J-gap manufacturers often increase the electrode area, which can have a detrimental effect on the ignition spark.

This has a “quenching” effect on the ignition spark, which increases combustion variability;

Or they use precious metals, which increase manufacturing www.honeywell-diver.com complexity and reduce plug durability.

FTI’s unique, patented design provides consistent ignition without the need for a high-energy ignition system, reducing the need for precious metal electrodes for long life.

It can also be customised to meet specific engine combustion requirements.

FTI Advantages.

Fast, consistent fuel combustion

Improved engine efficiency

Reduced exhaust emissions

No hot running and good detonation margins

Longer life

Customisable design

Objectives achieved: Improved engine efficiencyContinuous fuel ignition – More complete fuel combustionFaster combustion – Just in Time Departure Point (ATDC) for improved combustion efficiencyImproved combustion stability

j-gap with FIT.

FTI’s patented pre-combustion chamber combustion technology improves combustion start-up with J-gap and conventional pre-combustion chamber spark plugs.

J-gap1 Typical J-gap spark plugs have a spherical flame front that burns slowly as it passes through the combustion chamber. This type of flame front is susceptible to high turbulence in the combustion chamber, which can quench or even blow out the spark, again increasing ignition variability. In addition, smaller spark surfaces corrode more quickly, shortening the life of the spark plug.

FTI addresses these issues by using a separate flame core for ignition. The multi-jet flame front from the FTI igniter creates its own combustion chamber turbulence. This self-generated turbulence adds to existing chamber turbulence while being highly resistant to other chamber turbulence that promotes rapid flame growth throughout the fuel mixture.

Extremely poor operating conditions

Higher combustion efficiency and NOx optimised ignition timing

Reduced emissions

Reduced nitrogen oxides – ability to operate at increased λ (air-fuel ratio)

Reduced misfires – unburnt hydrocarbons

Longer life

Exceeds engine service intervals – reduces engine downtime

Multiple products – different levels of life expectancy

Zero failure rate

Reliable and robust – designed for high cylinder pressures

The 5009XT is a standard off-the-shelf, single-pump steam turbine control for industrial steam turbines in reliability-critical applications.

The controller utilises Woodward’s field-proven MicroNet TMR triple-redundant fault-tolerant hardware platform combined with Woodward’s state-of-the-art XT steam control core and algorithms.

Features and Functionality

The 5009XT’s triple redundant fault tolerant design allows it to continue to safely operate the turbine at any single point of failure.

The modular design and hot-swappable features maximise uptime and minimise maintenance downtime required for control.

The unique PID architecture of the 5009XT controller makes it ideal for applications that require precise control of parameters.

These parameters include turbine speed, load, extraction header pressure, intake header pressure and exhaust header pressure or contact line power.

The field-programmable controller allows users to easily change system configurations without the need for OEM expertise.

The system can be controlled and configured using the optional 17-inch touch screen www.honeywell-diver.com monitor or any workstation running Woodward RemoteView software.

workstation to control, configure, calibrate and tune the system.

RemoteView also serves as the system’s HMI, allowing the operator to monitor the system, start/stop the turbine, enable/disable all control modes, and view/reset system alarms.

Applications.

Speed/Frequency Control

Turbine or generator load control/limiting

Pumping and/or inlet manifold pressure control

Turbine inlet manifold pressure control/limiting

Turbine exhaust manifold pressure control/limiting

Plant input/output power control/limiting

Synchronised load sharing between units

Any process directly related to unit load

Proportional or integral servo position control with LVDT/RVDT excitation (with optional module)

Features.

Subject to C61508 SIL-3 certification (MSM required)

Triple-mode redundancy

API 612 and 670 compliant

Field-proven controller

Online configurable and repairable

Optional integrated HMI/engineering workstation

Problem Ahead Indication

Fault tolerant power supply

One millisecond timestamp alarms and faults

Integrated overspeed protection

CANOpen for integrated Woodward valves and I/Os

Achilles certified

Optional:5009XT touchscreen workstation with remote viewing support (8269-1073)

Replacement:5009 ft. 120 Volt AC/DC (8262-1046. 8262-1049. 8262-1050. 8262-1051.

8262-1052. 8262-1070. 8262-1071. 8262-1111. 8262-1112. 8262-1113. 8262-1114. 8262

The 2301E-ST controller is equipped with internal algorithms designed to start/stop, control and protect small turbines driving generators, pumps and compressors.

Features and Functions

The 2301E-ST performs the core control and protection functions of a small turbine unit.

The application software is field configurable, allowing it to be configured and modified to meet site-specific requirements.

Modbus communication also allows easy interfacing with a packaged PLC or plant DCS.

The 2301E-ST controller is backwards compatible with the existing 2301D-ST controller as it has the same form, fit and function.

The new controller ensures the continued availability of a proven, versatile product with enhanced functionality: -Accepts two redundant MPU speeds.

-Accepts two redundant MPU speed signal inputs

-Independent RS-232 and RS-422 serial ports, both with 9-pin www.honeywell-diver.com connectors

-Additional status led for power and RS-422 communications

-Fault data logging function that collects 16 seconds of data every 10 milliseconds in the event of a shutdown, peak speed, and load detection

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 locations as the 2301D-ST model.

-Major compliance certifications

The 2301E-ST has four modes of operation.

-Speed control.

-With multiple dynamic flexibility. Will operate on pumps or compressors. Capable of remote 4-20mA speed referencing via configurable analogue input.

-Synchronised load sharing

-Compatible with most existing analogue load sharing speed control systems. Now with soft loading and unloading capabilities.

-Basic Load Drop

-Adjustable load control using discrete rise and fall contacts.

-Synchronised base load

-Provides constant load level operation for the common bus. Load settings can be fixed or changed using discrete raise and lower inputs or remote 4-20mA inputs.

The Flex500 is a programmable, real-time deterministic dedicated digital controller that optimises the performance and protection of compressors, steam turbines, gas turbines and water turbines.

Woodward builds on our reliable, field-proven 505D hardware platform.

Designed and manufactured in conjunction with our industry trusted and easy to use GAP programme and advanced service tools.

This model is a backplane mounted low voltage 18-36 Vdc power input rated for Class 1 Div. 2 standard position.

Features and Functionality

The Flex500 control system represents a new generation of dedicated controller remote view virtual terminal connections.

The industrial hardware platform provides stable, low-cost control for a wide variety of turbine, engine and compressor applications.

As a low-cost alternative to general-purpose PLCs, the Flex500 provides a simple, user-friendly gap-planning architecture as well as

True industrial-grade long production and support lifecycles eliminate frequent high-cost obsolescence issues.

The platform’s real-time operating system and dedicated inputs and outputs www.honeywell-diver.com provide deterministic performance for critical prime mover control functions.

Its fast I/O scan times, high accuracy and software program synchronisation make it ideal for controlling and protecting critical high-speed rotating equipment.

Applications.

Compressor control and protection

Steam turbines

Gas turbines

Hydraulic turbines

Gas and diesel engines

Features.

Optional rear panel

Remote view

Virtual terminal connection

Powerful real-time microprocessor control

Fast, accurate on-board I/O channels

Combines real-time control with PLC programming

Deterministic I/O scan rates as fast as 5 ms.

Distributed input/output RTCnet and LINKnet HT compatible

Compliant with time synchronisation protocol SNTP

Network control connection to DCS

Low-cost alternative to general-purpose PLCs

Sulphur-resistant conformal coating

Standard or hazardous location certified

Distributed control systems

Designed for use as a distributed control system based on Woodward’s RTCnet and/or LINKnet HT distributed I/O modules.

They can be used in conjunction with the Flex500 platform to expand the number and type of input and output signals according to the requirements of a particular application.

Ethernet, serial and CAN communication ports and the associated Modbus TCP/IP and CANopen protocols also make the platform

ideal for use as part of a plant-wide DCS or as a stand-alone controller.

Four Ethernet ports and four CAN ports provide the network flexibility and redundancy required for today’s critical control system architectures.

Woodward Unit 9907-164. from 505 Digital Microprocessor Controller for Steam Turbines with Single or Split Range Actuators.

Product Description.

The unit listed here is model 9907-164 and is part of the 505 and 505E microprocessor based governor control units.

These control modules are specifically designed to operate steam turbines, turbine generators and turbo-expander modules.

The 505/505E series was originally developed, produced and manufactured by Woodward.

Woodward is the oldest industrial manufacturer in the United States, founded in 1870. and remains one of the leading industrial companies in the marketplace.

The 9907-164 unit is designed to control a steam turbine by operating a single extraction and/or intake of steam from the turbine.

It utilises the turbine’s staged actuators (either one or both) to www.honeywell-diver.com actuate the steam inlet valve.

As with any 505 governor module, the unit can be configured in the field by a field operator.

The menu-driven software is controlled and changed by an operator control panel integrated into the front of the unit. The panel displays two lines of text with 24 characters per line.

The 9907-164 is equipped with a range of discrete and analogue inputs:16 contact inputs (of which 4 are dedicated and 12 programmable) followed by 6 programmable current inputs, 4 to 20 mA.

Standard features of the 9907-164 include critical speed avoidance, valve limiter, automatic start sequence, and shutdown first-out indicator.

Prepare for an emergency stop when starting an engine, turbine, or other type of prime mover to prevent personal injury from loss of control or overspeed.

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