2301A Load Sharing And Speed Control - Home Woodward
ReleasedProduct Manual 02303(Revision B, 9/2015)Original Instructions2301ALoad Sharing and Speed Control9900-430, 9900-431, 9900-432, 9900-433Installation and Operation Manual
Released DEFINITIONS This is the safety alert symbol. It is used to alert you to potential personalinjury hazards. Obey all safety messages that follow this symbol to avoidpossible injury or death.DANGER—Indicates a hazardous situation which, if not avoided, will result in deathor serious injury.WARNING—Indicates a hazardous situation which, if not avoided, could result indeath or serious injury.CAUTION—Indicates a hazardous situation which, if not avoided, could result inminor or moderate injury.NOTICE—Indicates a hazard that could result in property damage only (includingdamage to the control).IMPORTANT—Designates an operating tip or maintenance suggestion.The engine, turbine, or other type of prime mover should be equipped with anoverspeed shutdown device to protect against runaway or damage to the primemover with possible personal injury, loss of life, or property damage.The overspeed shutdown device must be totally independent of the prime movercontrol system. An overtemperature or overpressure shutdown device may alsobe needed for safety, as appropriate.Read this entire manual and all other publications pertaining to the work to be performed beforeinstalling, operating, or servicing this equipment. Practice all plant and safety instructions andprecautions. Failure to follow instructions can cause personal injury and/or property damage.This publication may have been revised or updated since this copy was produced. To verify thatyou have the latest revision, be sure to check the publications page on the Woodward website:www.woodward.com/publicationsThe current revision and distribution restriction of all publications are shown in manual 26311.The latest version of most publications is available on the publications page. If your publication isnot there, please contact your customer service representative to get the latest copy.Any unauthorized modifications to or use of this equipment outside its specified mechanical,electrical, or other operating limits may cause personal injury and/or property damage, includingdamage to the equipment. Any such unauthorized modifications: (i) constitute "misuse" and/or"negligence" within the meaning of the product warranty thereby excluding warranty coveragefor any resulting damage, and (ii) invalidate product certifications or listings.To prevent damage to a control system that uses an alternator or battery-chargingdevice, make sure the charging device is turned off before disconnecting the batteryfrom the system.To prevent damage to electronic components caused by improper handling, readand observe the precautions in Woodward manual 82715, Guide for Handling andProtection of Electronic Controls, Printed Circuit Boards, and Modules.Revisions—Text changes are indicated by a black line alongside the text.Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward isbelieved to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expresslyundertaken.Copyright Woodward, Inc. 1992 - 2015All Rights Reserved
ReleasedManual 023032301A Load Sharing & Speed ControlContentsELECTROSTATIC DISCHARGE AWARENESS . IICHAPTER 1. GENERAL INFORMATION . 1Description .1Applications .2CHAPTER 2. INSTALLATION. 8Unpacking .8Power Requirements .8Location Considerations .8Electrical Connections .8Setting Speed Range .9Potential Transformer Connections .9Current Transformer Connections .10Droop Contact (Isoch/Droop) and Load Sharing Lines .10Power Supply .10Minimum Fuel Contact.11Failed Speed Signal Override .11Idle/Rated Ramp Contact .11Actuator Output .11External Speed Trim .12Speed and Phase Matching (SPM) Synchronizer .12Speed Sensor .12Installation Checkout Procedure .12CHAPTER 3. OPERATION AND ADJUSTMENT . 14Initial Pre-Start Settings .14Start-up Adjustments .14Adjust for Stable Operation .15Speed Sensor Check.19Current Transformer (CT) Phasing Check .19Load Gain Adjustment .23Droop Adjustment .23CHAPTER 4. DESCRIPTION OF OPERATION . 26General .26Terminals for External Devices .27Paralleling .28CHAPTER 5. TROUBLESHOOTING . 30Troubleshooting Procedure .30CHAPTER 6. PRODUCT SUPPORT AND SERVICE OPTIONS . 36Product Support Options .36Product Service Options .36Returning Equipment for Repair .37Replacement Parts .37Engineering Services.38Contacting Woodward’s Support Organization .38Technical Assistance .392301A CONTROL SPECIFICATIONS . 41Woodwardi
Released2301A Load Sharing & Speed ControlManual 02303Illustrations and TablesFigure 1-1. 2301A Load Sharing and Speed Control .3Figure 1-2. Plant Wiring Diagram (9900-430) .4Figure 1-3. Plant Wiring Diagram (9900-431) .5Figure 1-4. Plant Wiring Diagram (9900-432) .6Figure 1-5. Plant Wiring Diagram (9900-433) .7Figure 3-1. Diesel Engine Performance Curves .17Figure 3-2. Temporary Wiring for Transformer Phase Correction.21Figure 3-3. Droop Adjustment .24Figure 4-1. Speed Control System .26Figure 4-2. Terminal Connections .28Figure 4-3. Paralleling System .29Table 5-1. Troubleshooting.31Electrostatic Discharge AwarenessAll electronic equipment is static-sensitive, some components more than others.To protect these components from static damage, you must take specialprecautions to minimize or eliminate electrostatic discharges.Follow these precautions when working with or near the control.1.Before doing maintenance on the electronic control, discharge the staticelectricity on your body to ground by touching and holding a grounded metalobject (pipes, cabinets, equipment, etc.).2.Avoid the build-up of static electricity on your body by not wearing clothingmade of synthetic materials. Wear cotton or cotton-blend materials as muchas possible because these do not store static electric charges as much assynthetics.3.Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoamcups, cup holders, cigarette packages, cellophane wrappers, vinyl books orfolders, plastic bottles, and plastic ash trays) away from the control, themodules, and the work area as much as possible.4.Do not remove the printed circuit board (PCB) from the control cabinetunless absolutely necessary. If you must remove the PCB from the controlcabinet, follow these precautions: Do not touch any part of the PCB except the edges. Do not touch the electrical conductors, the connectors, or thecomponents with conductive devices or with your hands. When replacing a PCB, keep the new PCB in the plastic antistaticprotective bag it comes in until you are ready to install it. Immediatelyafter removing the old PCB from the control cabinet, place it in theantistatic protective bag.To prevent damage to electronic components caused by improperhandling, read and observe the precautions in Woodward manual82715, Guide for Handling and Protection of Electronic Controls,Printed Circuit Boards, and Modules.iiWoodward
ReleasedManual 023032301A Load Sharing & Speed ControlChapter 1.General InformationDescriptionThe Woodward 2301A load sharing and speed control operates the load sharingand speed of generators driven by diesel or gasoline engines (it can also controlgenerators driven by steam or gas turbines).This manual covers 2301A controls, part numbers: 9900-430 24 V power, forward-acting 9900-431 24 V power, reverse-acting 9900-432 110 V power, forward-acting 9900-433 110 V power, reverse-actingThe 2301A control is housed in a sheet-metal chassis and consists of a singleprinted circuit board. All potentiometers are accessible from the front of thechassis.The 2301A provides control in either isochronous or droop mode.The isochronous mode is used for constant engine speed with: Single-engine operation Two or more engines controlled by Woodward load sharing control systemson an isolated bus Base loading against an infinite bus with the load controlled by an AutomaticPower Transfer and Load (APTL) Control, an Import/Export Control, aGenerator Loading Control, a Process Control, or another load-controllingaccessoryThe droop mode is used for speed control as a function of load with: Single-engine operation on an infinite bus Parallel operation of two or more enginesThe 2301A system for a single-engine generator includes: A 2301A electronic control An external 90 to 150 VDC or 88 to 132 VAC 50/60 Hz high voltage powersource A speed-sensing device A proportional actuator to position the fuel- or steam-metering device Current and potential transformers for measuring the load carried by thegeneratorWoodward1
Released2301A Load Sharing & Speed ControlManual 02303ApplicationsThe 2301A electronic control has a switch-selectable speed range. The controlcan be set to operate within one of the following rated speed ranges: 500 to 1 500 Hz 1000 to 3000 Hz 2000 to 6000 Hz 4000 to 12 000 HzSpeed range is factory set for 2000 Hz to 6000 Hz. Refer to insidecover to change speed range and prevent possible overspeed. Usingthe wrong speed range could cause an overspeed with resultingdamage to equipment and/or personal injury or death.In forward-acting controls, the actuator calls for more fuel as the actuator voltageincreases. Loss of voltage to the actuator will drive the actuator to minimum fuel.In reverse-acting controls, the actuator calls for more fuel as the actuator voltagedecreases. Loss of voltage to the actuator will drive the actuator to full fuel. Thisallows a backup mechanical ballhead governor to take control rather than shutdown the engine as would a forward-acting system (reverse-acting controls withmechanical ballhead backup governors are common on shipboard applications).An optional deceleration ramp is also offered. When this option is present, thetime to ramp from rated speed to idle speed is approximately 20 seconds. If thisoption is not present, this happens instantly.External wiring connections for reverse-acting controls are identicalto those for direct-acting controls.The relationship between engine speed and sensor output frequency isexpressed in this formula: sensor frequency in Hz equals the number of teeth onthe speed sensing gear times the rated engine speed in revolutions per minutedivided by 60.Frequency (Hz) 2(No. of teeth) x (engine speed [rpm])60Woodward
ReleasedManual 023032301A Load Sharing & Speed ControlFigure 1-1. 2301A Load Sharing and Speed ControlWoodward3
Released2301A Load Sharing & Speed ControlManual 02303Figure 1-2. Plant Wiring Diagram (9900-430)4Woodward
ReleasedManual 023032301A Load Sharing & Speed ControlFigure 1-3. Plant Wiring Diagram (9900-431)Woodward5
Released2301A Load Sharing & Speed ControlManual 02303Figure 1-4. Plant Wiring Diagram (9900-432)6Woodward
ReleasedManual 023032301A Load Sharing & Speed ControlFigure 1-5. Plant Wiring Diagram (9900-433)Woodward7
Released2301A Load Sharing & Speed ControlManual 02303Chapter 2.InstallationUnpackingBefore handling the control, read the "Electrostatic Discharge Awareness"section on page ii. Be careful when unpacking the electronic control. Check thecontrol for signs of damage such as bent or dented panels, scratches, and looseor broken parts. If any damage is found, immediately notify the shipper.Power RequirementsThe high-voltage versions of the 2301A control requires a voltage source of 90 to150 VDC or 88 to 132 VAC 50/60 Hz for operating power. The low-voltageversions require a voltage source of 20-40 VDC. If a battery is used for operatingpower, an alternator or other battery charging device is necessary to maintain astable supply voltage.To prevent damage to the control, make sure that the alternator orother battery-charging device is turned off or disconnected beforedisconnecting the battery from the control.Location ConsiderationsConsider these requirements when selecting the mounting location: Adequate ventilation for cooling Space for servicing and repair Protection from direct exposure to water or to a condensation-proneenvironment Protection from high-voltage or high-current devices, or devices whichproduce electromagnetic interference Avoidance of vibration Selection of a location that will provide an operating temperature range of -40to 85 C (–40 to 185 F)The control must NOT be mounted on the engine.Electrical ConnectionsExternal wiring connections and shielding requirements for a typical controlinstallation are shown in the plant wiring diagram, Figure 1-2. These wiringconnections and shielding requirements are explained in the rest of this section.8Woodward
ReleasedManual 023032301A Load Sharing & Speed ControlShielded WiringAll shielded cable must be twisted conductor pairs. Do not attempt to tin thebraided shield. All signal lines should be shielded to prevent picking up straysignals from adjacent equipment. Connect the shields to the control terminals asshown in the plant wiring diagram, Figure 1-2. Wire exposed beyond the shieldshould be as short as possible, not exceeding two inches. The other end of theshields must be left open and insulated from any other conductor. Do not runshielded signal wires with other wires carrying large currents. See Woodwardapplication note 50532, EMI Control for Electronic Governing Systems, for moreinformation.Where shielded cable is required, cut the cable to the desired length and preparethe cable as instructed below.1.Strip outer insulation from BOTH ENDS exposing the braided or spiralwrapped shield. DO NOT CUT THE SHIELD.2.Using a sharp, pointed tool, carefully spread the strands of the shield.3.Pull inner conductor(s) out of the shield. If shield is the braided type, twist toprevent fraying.4.Remove 6 mm (1/4 inch) of insulation from the inner conductor(s), andconnect the wiring and shield.In installations with severe electromagnetic interference (EMI), shielded wire runin conduit, double shielded wire, or other precautions may be required. ContactWoodward for more information.Setting Speed RangeThe speed range to be selected is determined by the maximum desired enginespeed. Calculate the frequency of the speed sensor signal at the maximumengine speed by multiplying the speed in revolutions per minute times thenumber of teeth on the speed sensing gear and dividing by 60. Select the lowestspeed range which contains this maximum speed sensor frequency.If the speed range must be changed, remove the cover. Carefully follow theelectrostatic procedures at the beginning of this chapter. Set the four rockerswitches on switch S1 (found on top of the printed circuit board on the far rightside near the top) as follows: 500–1500 Hz rocker switch 1 on, the other three switches off 1000–3000 Hz rocker switch 2 on, the other three switches off 2000–6000 Hz rocker switch 3 on, the other three switches off 4000–12 000 Hz rocker switch 4 on, the other three switches offPotential Transformer ConnectionsConnect the potential transformer secondary leads to the following terminals: Phase A to terminal 1 Phase B to terminal 2 Phase C to terminal 3The potential transformer secondary line-to-line voltage must be in the 90 to 240Vrms range. Refer to the plant wiring diagram, Figure 1-2.Woodward9
Released2301A Load Sharing & Speed ControlManual 02303Current Transformer ConnectionsThe standard method of connecting the current transformers is shown in theplant wiring diagram, Figure 1-2.Droop Contact (Isoch/Droop) and Load Sharing LinesBecause the load-sharing-line relay is contained in the control, no relay isrequired between the control and the load-sharing-line bus. Use shielded cableand connect the loa
Manual 02303 2301A Load Sharing & Speed Control Woodward 1 Chapter 1. General Information Description The Woodward 2301A load sharing and speed control operates the load sharing and speed of generators driven by diesel or gasoline engines (it can also control generators driven by steam or gas turbines).
2301A Woodward Manual 26455 4 ProductLine Spec TechnicalManual ApplicationNote 2301A Speed Control 82021 82020 26796 (Installation Sheet) 2301A with 4–20 mA Input 02301 02302 2301A Load Sharing & Speed Control (9905 Series) 82390 82389 (9905/9907 Series) 50533 (Wiring the 9905 Series)
Manual 82389 2301A LSSC Woodward 1 Chapter 1. General Information 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.
2301A LSSC with Dual Dynamics Manual 82046 2 Woodward Each set of dynamics has its own gain, reset, and actuator compensation adjustments. The selection of dynamics is made by a switch contact. A light emitting diode (LED) on the front of the 2301A control indicates when the alternate set of dynamics is being used by the control.File Size: 915KBPage Count: 48
Manual 82389 2301A LSSC Woodward 1 Chapter 1. General Information 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.
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 EDG even during emergency loading, and its manual reset. 8. Understand advantages and disadvantages of digital systems. Purpose of Governor: To control fuel to engine cylinders so as to control speed of the unit, holding a constant . Figure 8-8 2301A Control Box. Woodward 2301A.
Active load sharing (kW) Generators running in parallel operation. Through connection of dedicated load sharing lines all FlexGen controllers can handle paralleling of a generator to other generators controlled by FlexGen, C6200, SIGMA, T4400, T4800 or B6000 load sharing units. Reactive load sharing (kVAr) Reactive load sharing between genera-
programming Interrupt handling Ultra-low power Cortex-M4 low power. STM32 F4 Series highlights 1/4 ST is introducing STM32 products based on Cortex M4 core. Over 30 new part numbersOver 30 new part numbers pin-to-pin and software compatiblepin and software compatible with existing STM32 F2 Series. Th DSP d FPU i t ti bi d tThe new DSP and FPU instructions combined to 168Mhz performance open .
