Related Manuals for Woodward EM-35
Summary of Contents for Woodward EM-35
- Page 1 Product Manual 40159 (Revision E) Original Instructions EM-35 Electric Powered Actuator and 1907 Large Liquid Fuel Valve Installation and Operation Manual...
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Page 2: General Precautions
Revisions—Changes in this publication since the last revision 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 is believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly undertaken. -
Page 3: Table Of Contents
1907 Large Liquid Fuel Valve ................13 4. A ........... 18 HAPTER CTUATOR ALVE ALIBRATION EM-35 Actuator/1907 Large Liquid Valve with Analog Driver ......18 EM-35 Actuator/1907 Large Liquid Valve with Digital Driver ....... 18 5. I .......... 20 HAPTER NSPECTIONS ROUBLESHOOTING General ......................... - Page 4 Figure 2-4. Control Wiring Diagram (Digital Channel 2) ........11 Figure 2-5. EM-35 Actuator/1907 Large Liquid Fuel Valve Outline Drawing ..12 Figure 3-1. Schematic Flow Diagram of Liquid Fuel Valve With Orifice and Relief Valve ....................15 ...
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Page 5: Warnings And Notices
Start-up On- and off-highway Mobile Applications: Unless Woodward's control functions as the supervisory control, customer should install a system totally independent of the prime mover control system that... -
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 , Guide for Handling and Protection of Electronic Controls, 82715 Printed Circuit Boards, and Modules. -
Page 7: Regulatory Compliance
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve Regulatory Compliance Check actuator and resolver certification labels for appropriate hazardous locations ratings. The actuator and resolvers are suitable for use in Class I, Division 1, Groups C and D, and Class I, Division 2, Groups B, C, and D, hazardous locations. - Page 8 EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Woodward...
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Page 9: Chapter 1. Description
Description Introduction The EM-35 electric actuator is used to drive a 1907 large liquid valve, closed loop to position demand. Position feedback is provided by a resolver connected to the valve metering sleeve. Closed loop position control is accomplished through an EM-35 motor driver. -
Page 10: Resolver
The resolver is directly coupled to the valve metering shaft through use of a stainless steel bellows and is housed in an explosion proof enclosure. The resolver receives its excitation from the EM-35 driver. The EM driver uses a resolver to digital converter to determine valve position using the output voltages from the resolver's two secondary windings. -
Page 11: Chapter 2. Installation
Power Requirements The EM-35 actuator receives all of its power from the EM-35 driver. The operating range of the actuator is 18–32 Vdc. The maximum steady state driver input current is 4.5 A continuous with peaks of 25 A for 50 ms. -
Page 12: Electrical Connections
EM-35 digital driver, EM-35 actuator/1907 large liquid valve when conduit is used for all wire runs. If conduit is not used with the EM-35 digital driver, the eight single wires from the driver to the FTM must use 2–4 conductor, shielded wires to prevent EMI interference. -
Page 13: Figure 2-1. Wago 264 Series Terminal Block
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve 5. For the actuator, the power wires should go through the NPT tap in front of the three-pole Phoenix screw-type terminal block. The sense wires need to be run separately and should go through the NPT tap in front of the 10-pole WAGO terminal block. - Page 14 EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Woodward...
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Page 15: Figure 2-2. Control Wiring Diagram (Analog)
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve Figure 2-2. Control Wiring Diagram (Analog) Woodward... - Page 16 EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Woodward...
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Page 17: Figure 2-3. Control Wiring Diagram (Digital Channel 1)
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve Figure 2-3. Control Wiring Diagram (Digital Channel 1) Woodward... - Page 18 EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Woodward...
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Page 19: Figure 2-4. Control Wiring Diagram (Digital Channel 2)
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve Figure 2-4. Control Wiring Diagram (Digital Channel 2) Woodward... -
Page 20: Figure 2-5. Em-35 Actuator/1907 Large Liquid Fuel Valve Outline Drawing
EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Figure 2-5. EM-35 Actuator/1907 Large Liquid Fuel Valve Outline Drawing Woodward... -
Page 21: Chapter 3. Description Of Operation
Description of Operation EM-35 Actuator The EM-35 electric actuator is comprised of a brushless dc motor, a clutch assembly, a gearhead assembly, and an explosion-proof housing. The brushless dc motor uses samarium cobalt permanent magnets bonded and sleeved to the rotor. - Page 22 EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Under operating conditions, fuel at inlet pressure (P ), flows to the metering sleeve, one side of a bellows, to the bypass valve, and to an orifice. Metered fuel at pressure (P ) is directed to the turbine and the opposite side of the bellows.
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Page 23: Figure 3-1. Schematic Flow Diagram Of Liquid Fuel Valve With Orifice And Relief
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve Figure 3-1. Schematic Flow Diagram of Liquid Fuel Valve With Orifice and Relief Valve The 1907 large liquid valve is a pressure compensated flow control valve that is intended for use on positive displacement fuel forwarding systems only. The optional bypass dump port allows the 1907 valve to be used with both two-way and three-way engine fuel shut-off valves (SOV). -
Page 24: Figure 3-2. Three-Way Sov Fuel System Schematic
EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 Figure 3-2. Three-way SOV Fuel System Schematic Figure 3-3 shows a system that uses a two-way engine fuel SOV. In this system, a normally open SOV is interlocked with a normally closed valve mounted on the optional bypass dump port on the 1907 large liquid valve. -
Page 25: Figure 3-4. Bypass Dump Flow As A Function Of Valve Inlet Pressure
Manual 40159 EM-35 Actuator/1907 Large Liquid Fuel Valve Figure 3-4. Bypass Dump Flow as a Function of Valve Inlet Pressure Woodward... -
Page 26: Chapter 4. Actuator/Valve Calibration
(TSP) document that includes the valve serial number and part number. A copy of the TSP is shipped with each EM-35 actuator/1907 large liquid valve assembly. - Page 27 2. Obtain the valve characterization data file for the valve in number one above from Woodward. The valve characterization file name and the valve serial number must match. The date on the valve and the date on the data file must match.
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Page 28: Chapter 5. Inspections/Troubleshooting
Therefore, when improper speed variations appear, check all components including the prime mover for proper operation. Problems with the EM-35/valve assembly will usually show up as faults in the valve driver. The type of fault is indicated by LEDs on the driver circuit board. -
Page 29: Chapter 6. Service Options
Woodward systems and components for the retrofits and overhauls, long term service contracts, emergency repairs, etc. You can locate your nearest Woodward distributor, AISF, RER, or RTR on our website at: www.woodward.com/directory... -
Page 30: Woodward Factory Servicing Options
Flat Rate Remanufacture: Flat Rate Remanufacture is very similar to the Flat Rate Repair option with the exception that the unit will be returned to you in “like- new” condition and carry with it the full standard Woodward product warranty (Woodward Product and Service Warranty 5-01-1205). This option is applicable to mechanical products only. -
Page 31: Packing A Control
Engineering Services Woodward offers various Engineering Services for our products. For these services, you can contact us by telephone, by email, or through the Woodward website. Technical Support ... -
Page 32: How To Contact Woodward
EM-35 Actuator/1907 Large Liquid Fuel Valve Manual 40159 How to Contact Woodward For assistance, call one of the following Woodward facilities to obtain the address and phone number of the facility nearest your location where you will be able to get information and service. -
Page 33: Em-35/1907 Control Specifications
The actuator requires a final driver for driving the motor and for closed loop control. The EM-35 actuator uses a brushless dc motor with a 108:1 reducing planetary gearhead. The motor is designed with samarium cobalt permanent magnets bonded to the rotor element, and all stator windings are completely sealed. - 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.
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