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Summary of Contents for Woodward 9907-252
- Page 1 Installation and Operation Manual Load Sharing Module 0.5–4.5 Vdc Output 9907-252 Manual 02035 (Revision B)
- Page 2 Protection of Electronic Controls, Printed Circuit Boards, and Modules. 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
ROUBLESHOOTING 6. S ..............23 HAPTER ERVICE PTIONS Product Service Options ..................23 Woodward Factory Servicing Options ..............24 Returning Equipment for Repair ................25 Replacement Parts ....................25 Engineering Services .................... 26 How to Contact Woodward ................... 26 ... - Page 4 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.
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Page 5: Chapter 1. General Information
General Information Introduction The Woodward Load Sharing Module is made for use with engines equipped with speed controls that accept a 0–5 Vdc speed setting. The Load Sharing Module allows use of Woodward power generation accessories and allows load sharing... -
Page 6: Figure 1-2. Outline Drawing Of Load Sharing Module
Load Sharing Module Manual 02035 Figure 1-2. Outline Drawing of Load Sharing Module Woodward... -
Page 7: Figure 1-3. Block Diagram Of Load Sharing Module
Manual 02035 Load Sharing Module Figure 1-3. Block Diagram of Load Sharing Module Woodward... - Page 8 Load Sharing Module Manual 02035 Woodward...
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Page 9: Figure 1-4. Plant Wiring Diagram Of Load Sharing Module
Manual 02035 Load Sharing Module Figure 1-4. Plant Wiring Diagram of Load Sharing Module Woodward... -
Page 10: Chapter 2. Installation
To maintain compliance with CE marking requirements, the European Union Low Voltage Directive requires that the Load Sharing Module (LSM) be mounted in an IP43 enclosure as defined in EN60529. Access to the Load Sharing Module must be restricted to qualified personnel. Woodward... -
Page 11: General Wiring Requirements
Do not attempt to tin (put solder on) the braided shield. All signal lines should be shielded to prevent picking up stray signals from adjacent equipment. Connect the shields to the terminals indicated in the plant wiring diagram. Wire exposed beyond the shield must be as short as possible. Woodward... -
Page 12: Figure 2-1. Preparation Of Shielded Cables
4. Connect lugs to the shield and to the control wires. Number 6 slotted or round crimp-on terminals are used for most installations. Connect the wires to the appropriate terminals on the module. Installations with severe electromagnetic interference (EMI) may require shielded wire run in conduit, double shielded wire, or other precautions. Woodward... -
Page 13: Generator Connections
If droop is not desired when the auxiliary contact is open, turn the droop potentiometer fully counterclockwise. Use a single pole, single-throw switch with a 0.1 A minimum rating for the “open for droop” switch. Woodward... -
Page 14: Output To The Engine Speed Control
When using a DDEC III or IV control, terminal 916 could be connected to terminal 21. Terminal 916 is a 5 Vdc reference from the DDEC control that is referenced to terminal 952 that is connected to terminal 20 of the LSM. Woodward... -
Page 15: Chapter 3. Setup And Calibration
Remove the load from the generator set. Check the voltage between terminals 22 and 23. This voltage should be 0.0 ± 0.25 Vdc. If this voltage is not correct, the Load Sharing Module is faulty or there may still be load on the generator. Woodward... -
Page 16: Phasing Check
17. Shut down the generator set. 18. Reconnect the phase “A” CT wire to terminal 5. 19. If the reading in step 16 was correct, proceed to Load Gain Adjustment later in this chapter. Otherwise, perform the following Phase Correction Procedure. Woodward... -
Page 17: Phase Correction Procedure
Label each CT wire with the phase and polarity that you think it should be. Even though this identification may prove to be wrong during this procedure, this step is necessary so that the individual wires may be identified during the description of the procedure. Woodward... -
Page 18: Figure 3-1. Temporary Ct Connections
10. Measure the load signal voltage between terminals 22 and 23 and record this voltage. 11. Shut the generator set down. 12. Remove the phase “A” CT wires from terminal 4 and 5 and connect the phase “A” CT wires to the phase “B” input terminals 6 and 7. Woodward... - Page 19 32. Measure the load signal voltage between terminals 22 and 23 and record this voltage. 33. Shut down the generator set. 34. Remove the phase “B” CT wires from the terminals they are connected to and connect them to the remaining pair of CT input terminals on the Load Sharing Module. Woodward...
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Page 20: Load Gain Adjustment
If the load signal voltage cannot be raised to 6 volts, and the phasing has been checked and is correct, it will be necessary to use a lower load signal voltage. Set the full load signal voltages of all generator sets in the system to the same voltage. Woodward... -
Page 21: Droop Adjustment
Adjust the DROOP potentiometer to give the desired speed. Example: Operating at 60 Hz, 57 Hz at full load indicates 5 percent droop. If only 50 percent loading is possible, 58.5 Hz would indicate 5 percent droop (see Figure 3-2). Figure 3-2. Droop Adjustment Woodward... -
Page 22: Setting Droop For An Infinite Bus
For example: Five percent droop at 50 percent load will require a no load rated speed of 61.5 Hz, not 63 Hz, on a 60 Hz system. Woodward... -
Page 23: Chapter 4. Theory Of Operation
A speed-trim potentiometer can be added to the Load Sharing Module to permit remote adjustment of the load or frequency of the generator. The speed trim is normally used for manual synchronization of a generator set with an existing bus or to change the load demand when in droop mode. Woodward... -
Page 24: Isochronous Load Sharing
Auxiliary Equipment The Woodward SPM-A synchronizer functions by biasing the output of the Load Sharing Module. All other Woodward auxiliary generating control equipment functions by biasing the voltage on the load-sharing lines. -
Page 25: Chapter 5. Troubleshooting
Perform phasing check. If phasing check Adjusting LOAD Gain won't wiring. indicates need, perform procedure for raise it. correct phase wiring. Insufficient CT output. Check for 5 amp CT output at full load. Change to a lower primary current CT if necessary. Woodward... - Page 26 Engine does not properly Terminals 13 and 14 not Jumper Load Sharing Module terminals 13 share load with other units. shorted. Load sharing module is and 14. Observe engine operation. Replace in droop. wiring or switch as required. Woodward...
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Page 27: Chapter 6. Service Options
A Recognized Turbine Retrofitter (RTR) is an independent company that does both steam and gas turbine control retrofits and upgrades globally, and can provide the full line of Woodward systems and components for the retrofits and overhauls, long term service contracts, emergency repairs, etc. -
Page 28: 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 29: 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 30: Engineering Services
Load Sharing Module Manual 02035 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 • Product Training • Field Service Technical Support is available from your equipment system supplier, your local Full- Service Distributor, or from many of Woodward’s worldwide locations, depending... -
Page 31: 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 32: Appendix . Lsm Control Specifications
Load Sharing Input 0–3 Vdc into 25 kΩ impedance in isochronous mode, open circuit in droop mode. Sync Input Compatible with optional Woodward SPM-A Synchronizer, 0.75% speed change* per volt input. Speed Trim ±7.5% speed change* with an external 10 kΩ... - Page 33 Conforms to EMC Directive 89/336/EEC. Conformity established by testing. Conforms to Low Voltage Directive 73/23/EEC when used in accordance with instructions. Conformity established by testing. Listed to UL and cUL Industrial Control Equipment (UL508). *—When used with a speed control having a gain of 5% speed change/volt. Woodward...
- Page 34 Load Sharing Module Manual 02035 Woodward...
- Page 36 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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