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Summary of Contents for Woodward EM-35
- Page 1 Product Manual 40161 (Revision D) Original Instructions EM-35 Digital Driver (Single and Dual Feedback) Installation and Operation Manual...
- Page 2 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 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
..............19 PPENDIX PECIFICATIONS Illustrations and Tables Figure 1-1. EM-35 Digital Driver Functional Block Diagram ........2 Figure 2-1. EM-35 Digital Driver Outline Drawing ..........5 Figure 2-2. Plant Wiring Diagram, Position Control Module Channel #1 with Dual ... -
Page 4: Regulatory Compliance
EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 Regulatory Compliance This equipment is suitable for use in Class I, Division 2, Groups A, B, C, and D or non-hazardous locations only. Wiring must be in accordance with Class I, Division 2 wiring methods and in accordance with the authority having jurisdiction. -
Page 5: Electrostatic Discharge Awareness
PCB from the control cabinet, place it in the antistatic protective bag. 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 6 EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 Woodward...
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Page 7: Chapter 1. General Information
(DLE) systems, or other applications where high accuracy and dynamic performance are required. The EM-35 digital driver is housed in a watertight, corrosion resistant, sheet metal enclosure. EM-35 Driver Operation See Figure 1-1 for the EM-35 functional block diagram. The EM-35 digital driver system consists of a position controller module and the driver. -
Page 8: Figure 1-1. Em-35 Digital Driver Functional Block Diagram
EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 Figure 1-1. EM-35 Digital Driver Functional Block Diagram Woodward... -
Page 9: Chapter 2. Installation
Power Requirements The EM-35 driver requires a 28 Vdc, 25 A input power supply. The maximum steady state driver input current is 4.5 A continuous with 25 A peak for 50 ms. -
Page 10: Electrical Connections
Woodward Governor Company for more information. Plant Wiring Figures 2-2 and 2-3 are the plant wiring diagrams for the EM-35 driver when conduit is used for all wire runs. If conduit is not used, the eight single wires from the driver to the FTM must use 2-4 conductor, shielded wires to prevent EMI interference. -
Page 11: Figure 2-1. Em-35 Digital Driver Outline Drawing
Manual 40161 EM-35 Digital Driver (Single and Dual Feedback) Figure 2-1. EM-35 Digital Driver Outline Drawing Woodward... - Page 12 EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 Woodward...
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Page 13: Figure 2-2. Plant Wiring Diagram, Position Control Module Channel #1 With Dual
Manual 40161 EM-35 Digital Driver (Single and Dual Feedback) Figure 2-2. Plant Wiring Diagram, Position Control Module Channel #1 with Dual Feedback Woodward... - Page 14 EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 Woodward...
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Page 15: Figure 2-3. Plant Wiring Diagram, Position Control Module Channel #2 With Dual Feedback
Manual 40161 EM-35 Digital Driver (Single and Dual Feedback) Figure 2-3. Plant Wiring Diagram, Position Control Module Channel #2 with Dual Feedback Woodward... -
Page 16: Chapter 3. Troubleshooting
Faults Problems with the EM-35/valve assembly will usually show up as faults in the valve driver or the NetCon control. The type of fault is indicated by LEDs on the driver circuit board. -
Page 17: Em-35/Valve Troubleshooting Guide
IACT_EM block read the same value ±0.25° as the valve calibration offset. If they are not the same value, consult the troubleshooting guide. If the problem still cannot be resolved, consult Woodward. The driver can now be RESET through the NetCon control. If a position error (POS_ERR) occurs at reset, see the troubleshooting guide. -
Page 18: Iact_Em Moe Block
Error is application dependent. It can be made to shut down the driver in the NetCon control. IACT_EM MOE BLOCK All of the adjustments for the EM-35 digital driver are made in the NetCon control, via the IACT_EM block. Woodward... - Page 19 Dither Adjustment The maximum dither adjustment (degrees of movement of motor shaft) depends on the valve which is connected to the EM-35 driver. The adjustment is made inside of the NetCon control (in the IACT_EM MOE block). These maximum dither adjustments should not be the default setting. The adjustment should be made so the dither can be barely felt on the pointing device on the valve and then backed off until it cannot be felt any more.
- Page 20 EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 Driver fault output (DRVR_FLT) this output goes true anytime a fault has occurred that forces the remote driver to be shutdown. Current limit output (CURR_LIM) this output is true if the motor current exceeds 25 amps for CUR_LIMDLY milliseconds + 500 ms.
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Page 21: Chapter 4. Product Support And Service Options
A current list of Woodward Business Partners is available at www.woodward.com/directory. Product Service Options Depending on the type of product, the following options for servicing Woodward products may be available through your local Full-Service Distributor or the OEM or Packager of the equipment system. -
Page 22: 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 23: 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 24: Technical Assistance
Manual 40161 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 25: System Performance
Manual 40161 EM-35 Digital Driver (Single and Dual Feedback) Appendix. Specifications Electrical Digital Position Controller Bandwidth: > 5 Hz @ 3 deg p-p input Sample time: 1.66 ms Dynamics: tunable (MOE block) Data format: 8-bit integer, 24-bit fraction Processor status:... - Page 26 EM-35 Digital Driver (Single and Dual Feedback) Manual 40161 System Installation Power input: 28 Vdc nominal, 18–32 Vdc operating 4.5 A continuous 25 A peak for 50 ms Power cable: 5.0 mm² (10 AWG), 60 m (200 ft) max, 3.0 mm² (12 AWG), 30 m (100 ft) max...
- Page 27 Manual 40161 EM-35 Digital Driver (Single and Dual Feedback) Woodward...
- Page 28 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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