Woodward 2301A Installation And Operation Manual
Electronic load sharing and speed control 9905/9907 series ul listed e97763
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Summary of Contents for Woodward 2301A
- Page 1 Installation and Operation Manual 2301A Electronic Load Sharing and Speed Control 9905/9907 Series UL Listed E97763 Manual 82389 (Revision N)
- Page 2 Woodward Governor Company reserves the right to update any portion of this publication at any time. Information provided by Woodward Governor Company is believed to be correct and reliable. However, no responsibility is assumed by Woodward Governor Company unless otherwise expressly undertaken.
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Page 3: Table Of Contents
WARENESS 1. G ............1 HAPTER ENERAL NFORMATION Description......................1 Applications ......................1 References ......................2 2301A Load Sharing and Speed Control Models, 9905/9907 Series ....3 2. I ................7 HAPTER NSTALLATION Unpacking.......................7 Power Requirements ....................7 Location Considerations..................7 Electrical Connections....................7 Shielded Wiring ......................8 Setting Speed Range .....................8... - Page 4 Figure 4-3. Terminal Connections ................29 Figure 4-4. Paralleling System ................30 Figure 4-5. Paralleling Adjustments ..............30 Table 1-1. Low-Voltage 2301A Models (20 to 40 Vdc) ..........3 Table 1-2. High-Voltage 2301A Models (88–132 Vac or 90–150 Vdc) ....3 Table 6-1. Troubleshooting ..................31 Woodward...
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Page 5: Electrostatic Discharge Awareness
PCB from the control cabinet, place it in the antistatic protective bag. CAUTION—ELECTROSTATIC DISCHARGE To prevent damage to electronic components caused by improper handling, read and observe the precautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. Woodward... - Page 6 2301A LSSC Manual 82389 Woodward...
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Page 7: Chapter 1. General Information
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 •... -
Page 8: References
60. Application engineers from Woodward or any of its authorized distributors or agents are always available to assist you in selection of the correct control for your system, or to answer questions concerning control installation, operation, or calibration. -
Page 9: 2301A Load Sharing And Speed Control Models, 9905/9907 Series
The installer should properly size wiring and fusing for the input power and PT/CT circuits. Speed Ranges On these Woodward 2301A models, any one of the following speed ranges may be selected by a switch: 500 to 1500 Hz... -
Page 10: Figure 1-1. 2301A Control Outline Drawing
2301A LSSC Manual 82389 Figure 1-1. 2301A Control Outline Drawing (low voltage version—top, high voltage version—bottom) Woodward... -
Page 11: Figure 1-2A. Plant Wiring Diagram (Low-Voltage Supply)
Manual 82389 2301A LSSC Figure 1-2a. Plant Wiring Diagram (low-voltage supply) Woodward... -
Page 12: Figure 1-2B. Plant Wiring Diagram (High-Voltage Supply)
2301A LSSC Manual 82389 Figure 1-2b. Plant Wiring Diagram (high-voltage supply) Woodward... -
Page 13: Chapter 2. Installation
If any damage is found, immediately notify the shipper. Power Requirements The 2301A control requires a voltage source of 18 to 40 Vdc, 90 to 150 Vdc, or 88 to 132 Vac for operating power (15 W). If a battery is used for operating power, an alternator or other battery charging device is necessary to maintain a stable supply voltage. -
Page 14: Shielded Wiring
The other end of the shields must be left open and insulated from any other conductor. Do not run shielded signal wires with other wires carrying large currents. See Woodward application note 50532, EMI Control for Electronic Governing Systems, for more information. -
Page 15: Potential Transformer Connections
Manual 82389 2301A LSSC Figure 2-2 shows the four sections of Switch S1 and their corresponding speed ranges. Set the proper section of Switch S1 to the ON position and the other three positions of Switch S1 to the OFF position. -
Page 16: Droop Contact (Isoch-Droop) And Load Sharing Lines
Connect the shield to terminal 12. When all controls in the system are of the 2301A type, the shields may be connected continuously between controls. When load sharing with different controls, do not connect the shields at the point where connections are made to the load-sharing-line bus. -
Page 17: Power Supply
Generator Loading Control or Import/Export Control. The circuit- breaker auxiliary contact will then be connected to the Generator Loading Control or Import/Export Control and not to the 2301A Load Sharing and Speed Control. Power Supply Run the power leads directly from the power source to the control, connecting the negative lead to terminal 15, and the positive lead to terminal 16. -
Page 18: Idle/Rated Ramp Contact
2301A LSSC Manual 82389 Idle/Rated Ramp Contact Connect a single-pole, single-throw contact from terminal 16 (terminal 0 on high- voltage controls) to terminal 19, the Close For Rated (open for idle, close for rated) terminal. Oil pressure is often used to close this contact. When closed, 20 to 40 Vdc is applied to terminal 19, and the prime mover can be operated at a speed higher than idle. -
Page 19: Installation Check-Out Procedure
Clearance should be between 0.25 and 1.00 mm (0.010 and 0.040 inch) at the closest point. Make sure the gear has less than 0.50 mm (0.020 inch) diametric runout. See Woodward manual 82510, Magnetic Pickups & Proximity Switches for Electronic Governors. -
Page 20: Chapter 3. Operation And Adjustment
2301A LSSC Manual 82389 Chapter 3. Operation and Adjustment Initial Pre-Start Settings WARNING—READ FULL PROCEDURE Read this entire procedure before starting the prime mover. CAUTION—DO NOT TURN POTS BEYOND THEIR STOPS The Rated Speed potentiometer is the only multi-turn pot in this control. All other pots are single-turn. - Page 21 Manual 82389 2301A LSSC Close the Close For Rated contact. Set the control for isochronous operation by closing the droop contact. NOTE This is for initial prime mover start-up only. For normal start-up, the Close For Rated contact (open for idle/close for rated) should be open if the prime mover is to start at idle.
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Page 22: Adjust For Stable Operation
2301A LSSC Manual 82389 Adjust For Stable Operation If prime-mover operation is stable, go to the “Speed Setting Adjustment” procedure. lf the prime mover is hunting at a rapid rate, slowly decrease the GAIN (turn the potentiometer counterclockwise) until performance is stable. Adjusting the GAIN may cause a momentary speed change which can be minimized by turning the GAIN potentiometer slowly. -
Page 23: Actuator Compensation Adjustment
Manual 82389 2301A LSSC Figure 3-1 illustrates prime mover starts with the RAMP TIME potentiometer fully counterclockwise (no ramp—be careful not to overtorque the pot), step loadings at four different RESET potentiometer settings, and stable, steady-state running conditions. These are typical performance curves on a naturally aspirated (non-turbocharged) diesel engine. -
Page 24: Figure 3-1. Diesel Engine Performance Curves
2301A LSSC Manual 82389 Figure 3-1. Diesel Engine Performance Curves Woodward... -
Page 25: Start Fuel Limit Adjustment
Manual 82389 2301A LSSC Start Fuel Limit Adjustment NOTE Start-fuel limit is not recommended for use with reverse-acting controls. With loss of speed signal, the reverse-acting control will position the actuator at the start-fuel level if the failed-speed-signal override is activated. -
Page 26: Phase Correction Procedure
2301A LSSC Manual 82389 Connect a dc voltmeter to control terminals 11 (–) and 13 (+) to measure the load signal. Start the prime mover. With the generator operating in the isochronous mode and not paralleled, load the generator to as near to full load as possible. -
Page 27: Figure 3-2. Temporary Wiring For Transformer Phase Correction
Manual 82389 2301A LSSC The Phase Correction Procedure requires that the prime mover be shut down many times to disconnect the current transformers. For convenience, a temporary method of connecting the current transformers shown in Figure 3-2 is recommended. Connecting a 1 Ω, 5 W burden resistor across each current transformer allows the current transformers to be disconnected from the terminal strip with the prime mover running, after removing all load. - Page 28 2301A LSSC Manual 82389 Unload the system and reverse the phase A CT wires on terminals 4 and 5. * Apply full load, measure the load signal, and record this voltage. Unload the system, remove the phase A CT wires from terminals 4 and 5, and connect them to phase B input terminals 6 and 7.
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Page 29: Load Gain Adjustment
It may be necessary to reduce the load-signal voltage of each unit in the system to as low as 3 V in cases of extremely poor system dynamics. If your system requires a load-signal voltage as low as 3 V, consult Woodward for suggestions for possible remedies. -
Page 30: Droop Adjustment
2301A LSSC Manual 82389 Droop Adjustment Adjustment of the DROOP potentiometer is necessary when the generator set is to be operated in the droop mode. Droop in a load sensor is usually expressed as a percentage and calculated by the following formula. -
Page 31: Figure 3-4. 3% Droop At 60 Hz
Manual 82389 2301A LSSC Run the generator at the speed calculated in step 1, with no load. Record the setting of your speed-setting device: • Potentiometer—record setting with a pencil mark. • MOP or Other—measure and record the value of the speed-setting voltage (at the control). -
Page 32: Chapter 4. Description Of Operation
2301A LSSC Manual 82389 Chapter 4. Description of Operation Introduction The speed and load sharing section of these 2301A models monitors and controls two functions. • Speed—The speed control section keeps the prime mover at the correct speed. • Load Sharing—During parallel operation of two or more generators, the load sharing section senses the load carried by its generator and causes the loads of all generators in the system to be shared proportionally. -
Page 33: Figure 4-2. Speed Control Adjustments
Manual 82389 2301A LSSC The speed-signal voltage is compared to the reference voltage at the summing point. If the speed-signal voltage is lower or higher than the reference voltage, a signal is sent by the control amplifier calling for an increase or decrease in speed. -
Page 34: Terminals For External Devices
2301A LSSC Manual 82389 The START FUEL LIMIT potentiometer provides a means of limiting the fuel-rack position when starting diesel engines. Adjustment of the potentiometer sets the maximum actuator position desired. This limit position is automatically enabled prior to start-up, and is turned off when speed control takes over. -
Page 35: Figure 4-3. Terminal Connections
*—Do not use the minimum fuel contact option as part of any emergency stop sequence. **—See Woodward manual 82384, SPM-A Synchronizer 9905-002, for more information on the SPM-A. Figure 4-3. Terminal Connections... -
Page 36: Figure 4-4. Paralleling System
DROOP potentiometer shown in Figure 4-5. The 2301A Load Sharing and Speed Control is powered by a dc-dc isolated power supply, which allows operation over a wide voltage range without generating excessive heat. -
Page 37: Chapter 5. Troubleshooting
(respond). supply is indicated. Make resistance checks at the actuator. Coil resistance on Woodward actuators is approximately 35 Ω. (Read with leads at T20 and T21 disconnected.) Start fuel limit set too low. Turn start fuel limit clockwise until prime mover starts. - Page 38 2301A LSSC Manual 82389 Symptom Cause Remedy Prime mover will not No actuator voltage at terminals Check for shorted or grounded actuator start. Actuator not 20 and 21. leads by removing wires to terminals 20 and moving to start-fuel 21. Stop prime mover. Close the switch on position.
- Page 39 [T20 (+) and T21 (–)] until the speed setting is completely counterclockwise (or does not reduce fuel at any position), the 2301A control may be faulty, or may have the wrong speed range. If the voltage is cut back, look for a problem in the linkage or actuator.
- Page 40 (gas engine), or the LOW IDLE SPEED setting should be raised. If the above action does not correct the problem, the 2301A control may be faulty. LOW IDLE SPEED If adjustment of the LOW IDLE SPEED potentiometer.
- Page 41 Manual 82389 2301A LSSC Symptom Cause Remedy Prime mover will not Speed setting controls. If adjustment of external speed trim causes stabilize at rated no instability, check potentiometer with load speed. The ohmmeter for erratic behavior (turn power instability may occur off).
- Page 42 If the problem cannot be resolved by the instability may occur above checks, it will be necessary to at no load or it may remove the 2301A control from the switch- vary with load. gear. Temporarily mount it next to the prime Control may be mover and connect only a battery, magnetic erratic.
- Page 43 Manual 82389 2301A LSSC Symptom Cause Remedy Prime mover does Prime mover not receiving fuel as If voltage to actuator is maximum (minimum not share load with called for by the governor. for reverse-acting), visually determine if other units. actuator shaft is at maximum position. If it is not, an actuator problem is indicated, or the linkage or fuel system is restricted.
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Page 44: Chapter 6. Service Options
Product Service Options The following factory options are available for servicing Woodward equipment, based on the standard Woodward Product and Service Warranty (5-01-1205) that is in effect at the time the product is purchased from Woodward or the service is performed: •... -
Page 45: Returning Equipment For Repair
Returning Equipment for Repair If a control (or any part of an electronic control) is to be returned to Woodward for repair, please contact Woodward in advance to obtain a Return Authorization Number. When shipping the item(s), attach a tag with the following information: •... -
Page 46: Replacement Parts
To expedite the repair process, contact Woodward in advance to obtain a Return Authorization Number, and arrange for issue of a purchase order for the item(s) to be repaired. No work can be started until a purchase order is received. -
Page 47: Engineering Services
Manual 82389 2301A LSSC Engineering Services Woodward Industrial Controls Engineering Services offers the following after- sales support for Woodward products. For these services, you can contact us by telephone, by email, or through the Woodward website. • Technical Support •... -
Page 48: Technical Assistance
Type of Fuel (gas, gaseous, steam, etc) Rating Application Control/Governor Information Please list all Woodward governors, actuators, and electronic controls in your system: Woodward Part Number and Revision Letter Control Description or Governor Type Serial Number Woodward Part Number and Revision Letter... -
Page 50: 2301A Load Sharing And Speed Control
Idle Speed Select external switch, open terminals 19 to 16 Droop external switch, open terminals 14 to 16 Synchronizer ±5 Vdc for speed change with Woodward SPM-A synchronizer Load Sharing 0–6 Vdc Outputs— Actuator 7.5 Vdc max for 0 to 214 mA with 35 Ω coil Adjustments—... -
Page 51: Declarations
Declarations... - Page 52 Phone +1 (970) 482-5811 • Fax +1 (970) 498-3058 Email and Website—www.woodward.com Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address / phone / fax / email information for all locations is available on our website.
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how do i adjust the gov to lower hertz fluctuations
what adjustments can i make on this gov. to narrow the hertz fluctuations FROM 59.7hz/60.3 hz