Woodward EPG 512 Product Manual
Epg electrically powered governors with single phase droop rohs compliant
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Also See for EPG 512:
- Installation and troubleshooting manual (22 pages) ,
- Installation and operation manual (36 pages) ,
- Installation and control choices (12 pages)
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Summary of Contents for Woodward EPG 512
- Page 1 Released Product Manual 35162 (Revision -, 11/2019) Original Instructions EPG Electrically Powered Governors with Single Phase Droop RoHS Compliant Models 512/524 and 1712/1724 UL Listed E97763 Installation and Operation Manual...
- Page 2 Revisions— A bold, black line alongside the text identifies changes in this publication since the last revision. Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly undertaken.
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Page 3: Table Of Contents
Product Support Options ..................25 Product Service Options ..................25 Returning Equipment for Repair ................26 Replacement Parts ....................26 Engineering Services .................... 27 Contacting Woodward’s Support Organization ............ 27 Technical Assistance .................... 28 ................... 29 EVISION ISTORY ..................30... - Page 4 Figure 4-1b. EPG Block Schematic Diagram ............22 Figure 4-2. Actuator Schematic ................23 Table 1-1. Part Number Selection Chart ..............5 Table 2-1. Maximum Wiring Length Chart ............11 Table 2-2. Switch and Fuse Requirements Chart ..........11 Woodward...
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Page 5: Warnings And Notices
Be prepared to make an emergency shutdown when starting the engine, turbine, or other type of prime mover, to protect against runaway or overspeed with possible personal injury, loss of life, or property damage. Start-up Woodward... -
Page 6: Electrostatic Discharge Awareness
Do not touch the components or conductors on a printed circuit board with your hands or with conductive devices. 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. -
Page 7: Chapter 1. General Information
This manual covers only the part numbers of the system components that are listed in the Part Number Selection Chart. Contact Woodward or your authorized dealer or distributor for information about other part numbers or applications. The Model 1712/1724 and Model 512/524 Electrically Powered Governors (EPGs) are used to control the speed of diesel, gas, and gasoline engines. -
Page 8: Reference
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Reference These publications are available on the Woodward website (www.woodward.com). Catalog 52122, Woodward Product Line Catalog Product Specification 04106, EPG Electrically Powered Governors Manual 25070, Electronic Control Installation Guide Manual 82510, Magnetic Pickups and Proximity Switches for Electronic Controls Figure 1-1. -
Page 9: Chapter 2. Installation, Check, And Calibration
General Custom installation kits, including actuator-mounting hardware, linkage, and actuator wiring harness are available for some specific engines. Contact Woodward or your authorized dealer or distributor for more information. The engine, turbine, or other type of prime mover should be... -
Page 10: Install Magnetic Pickup
Mount the actuator and install a suitable linkage. A return spring is included in the actuator. Woodward recommends minimizing the external return force. (Low-force return springs that may be located in an engine’s valve cover usually don’t affect EPG performance.) -
Page 11: Figure 2-2. Outline Drawing Of Epg Speed Control
EPG Governors with Single Phase Droop RoHS Compliant Figure 2-2. Outline Drawing of EPG Speed Control (Do not use for construction.) Figure 2-3. Outline Drawing of EPG Actuators (EPG Models 1712/1724 left, Models 512/524 right) (Do not use for construction.) Woodward... -
Page 12: Figure 2-4. Linear Linkage
The standard models of pickups require mating connectors, MS 3102R-18-3P. The connectors may be ordered from Woodward or your authorized dealer or distributor if desired. More information is contained in Woodward manual 82510, Magnetic Pickups and Proximity Switches for Electronic Controls. - Page 13 Connect shields as shown in your wiring diagram. Terminate shields at a chassis mounting screw. Only one end of each shield, the end nearest the speed control, should be tied to ground. All shields must be tied to the same point. Woodward...
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Page 14: Figure 2-7. Typical Epg (With Droop) Wiring Diagram
When passing shields through connectors to terminal blocks, treat each shield as if it were a signal wire. Each shield must be given its own pin or terminal and be kept insulated from nearby wires and metal conductors. Do not tin (solder) braided shields. Connect the speed control chassis to system ground (connect to earth ground). Woodward... - Page 15 Put the idle-rated switch in the rated position. Set the speed trim pot, if connected, to mid position. Observe the linkage position. If the linkage is at the maximum-fuel position: Slowly turn the rated speed pot ccw until the linkage just begins to move to the minimum-fuel position. Woodward...
- Page 16 If it still doesn’t start, turn the rated speed pot fully ccw to minimize overspeed when it does start. Refer to Chapter 5, Troubleshooting. Woodward...
- Page 17 Apply load, 100% load if possible. Adjust DROOP potentiometer to give the desired speed. Operating at 60 Hz, 57 Hz at full load indicates 50/0 droop. If only 500/0 loading is possible, 58.5 Hz would indicate 5% droop. See Figure 2-8, Droop Definition. Woodward...
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Page 18: Figure 2-8. Droop Definition
Adjust the DROOP potentiometer ccw, decreasing droop, until 1000/0 load is achieved. If load other than 100% is desired, the speed pot will have to be set accordingly for desired percent droop. For example, at 5% droop, a 50% load-speed setting would be for 61.5 Hz. Woodward... -
Page 19: Figure 2-9. Correct And Incorrect Wiring To Battery
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Figure 2-9. Correct and Incorrect Wiring to Battery Woodward... -
Page 20: Figure 2-10. Starting And Transient Response Curves
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Figure 2-10. Starting and Transient Response Curves Woodward... -
Page 21: Chapter 3. Operation
(refer to the curves of Figure 2-11). Paralleled generator applications can be equally automatic when a Woodward SPM Synchronizer is used. In both automatically and manually controlled applications, a Ramp Generator can be used to provide adjustable time to go from rated to idle speeds. -
Page 22: Chapter 4. Description
[+] and 4 [–]) indicate only general conditions. Excessive currents are prevented from flowing through the actuator coil by the energy limiter. It prevents the actuator from overheating but allows enough current to keep the actuator at the maximum-fuel position. Woodward... -
Page 23: Figure 4-1A. Epg Block Schematic Diagram (Standard)
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Figure 4-1a. EPG Block Schematic Diagram (standard) Woodward... -
Page 24: Figure 4-1B. Epg Block Schematic Diagram
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Figure 4-1b. EPG Block Schematic Diagram (Start Fuel Limit) Woodward... -
Page 25: Paralleled Generator Applications
CT’s. These controls droop off of current cosine phase (current amplitude times the cosine of the phase difference of the PT and CT). Droop operation is required when paralleling with an infinite bus or units not having compatible electric governors. Woodward... -
Page 26: Chapter 5. Troubleshooting
Figure 2-9. If the prime mover oscillates when cold and stabilizes when warm, turn the gain pot slightly ccw. Turn the stability pot slightly cw if required to maintain stability. Woodward... -
Page 27: Chapter 6 Product Support And Service Options
An Authorized Independent Service Facility (AISF) provides authorized service that includes repairs, repair parts, and warranty service on Woodward's behalf. Service (not new unit sales) is an AISF's primary mission. A Recognized Engine Retrofitter (RER) is an independent company that does retrofits and... -
Page 28: Returning Equipment For Repair
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. -
Page 29: Engineering Services
Field Service engineering on-site support is available, depending on the product and location, from one of our Full-Service Distributors. The field engineers are experienced both on Woodward products as well as on much of the non-Woodward equipment with which our products interface. -
Page 30: Technical Assistance
EPG Governors with Single Phase Droop RoHS Compliant Technical Assistance If you need to contact technical assistance, you will need to provide the following information. Please write it down here before contacting the Engine OEM, the Packager, a Woodward Business Partner, or the Woodward factory: General... -
Page 31: Revision History
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Revision History New Manual— Woodward... -
Page 32: Declarations
Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Declarations Woodward... - Page 33 Released Manual 35162 EPG Governors with Single Phase Droop RoHS Compliant Woodward...
- Page 34 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.