Woodward EPG 512 Installation And Control Choices
Electrically powered governor
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Also See for EPG 512:
- Installation and troubleshooting manual (22 pages) ,
- Installation and operation manual (36 pages) ,
- Product manual (34 pages)
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Summary of Contents for Woodward EPG 512
- Page 1 Electrically Powered Governor Installation and Control Choices for EPG Actuators Application Note 50530 (Revision A)
- 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.
- Page 3 16-inch (406 mm) long piece of threaded rod. The 4024 actuator requires a larger terminal lever with 0.500-36 serrations. Most 4024 actuators are fitted with an external return spring. These actuators must be ordered with the correct direction of rotation. Woodward...
- Page 4 In cases where it is not practical to attach directly to the rack or to the shutdown lever, it is possible to provide electronic speed/load control through the speed- setting lever. This option creates additional control problems covered in detail in Application Note 50528, Linking the EPG to a Mechanical Droop Governor. Woodward...
- Page 5 If in doubt, contact a Woodward Application Engineer for additional details on how to check the work force required and, in some cases, how to overcome friction in the control system.
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Page 6: Installation Bracket
Installation Bracket The bracket for an EPG actuator should be designed to provide solid support. The location should be as vibration free as possible. Most Woodward-built brackets are constructed of 10-gauge sheet steel with the edges bent at 90 degrees for stiffness. Steel plate at least 6 mm (1/4 inch) thick is generally heavy enough to support the actuator, although additional bracing is sometimes required if the plate is much larger than the actuator. - Page 7 The following table shows minimum, maximum, and preferred actuator shaft movement between minimum and maximum fuel. The preferred distance will provide better stability. Preferred Actuator Travel Travel Travel 512/24 18° 20° 22° 1712/24 21° 23° 26° 4024 26° 30° 28° Figure 4. Recommended Terminal Shaft Movement Woodward...
- Page 8 The threaded rod could thread out of the rod end if it is not locked, causing loss of governor control and possible overspeed. It is extremely important that the jam nut on the threaded rod be kept tight. Figure 5. Rod End/Lever Assembly Woodward...
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Page 9: Wiring Suggestions
Use only new, well insulated, stranded wire in the installation. The wire is not supplied in a mounting kit, but special harnesses are available from Woodward. Signal wires from the MPU (magnetic pickup) to the control and from the control to and from the position feedback device on the actuator (if used) are normally run in 0.8 mm²... - Page 10 (Note tie of the actuator wire to the actuator to prevent damage due to vibration.) References Pub. Number Title Manuals— 82493 EPG 512/524 & 1712/1724 (Isochronous) 82327 EPG 512/24 & 1712/24, Single Phase Droop 82354 EPG with Position Feedback 82042 4024 Electrically Powered Governor 8256-060/080/081 Product Specifications— 82043 4024 All Electric Governor System...
- Page 12 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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