Woodward 9907-026, Product Manual

Page 1: ...Product Manual 02029 Revision B Original Instructions Load Sharing Module Analog Output CE Compliant Installation and Operation Manual ...

Page 2: ...mits may cause personal injury and or property damage including damage to the equipment Any such unauthorized modifications i constitute misuse and or negligence within the meaning of the product warranty thereby excluding warranty coverage for any resulting damage and ii invalidate product certifications or listings Translated Publications If the cover of this publication states Translation of th...

Page 3: ...duction 16 Power Supply 16 Power Sensor 16 Controller Circuit 16 Isochronous Load Sharing 18 Droop Operation 18 CHAPTER 5 TROUBLESHOOTING 19 Introduction 19 CHAPTER 6 SERVICE OPTIONS 21 Product Service Options 21 Woodward Factory Servicing Options 22 Returning Equipment for Repair 22 Replacement Parts 23 Engineering Services 23 How to Contact Woodward 24 Technical Assistance 24 Illustrations and T...

Page 4: ... prime mover control system An overtemperature or overpressure shutdown device may also be needed for safety as appropriate Personal Protective Equipment The products described in this publication may present risks that could lead to personal injury loss of life or property damage Always wear the appropriate personal protective equipment PPE for the job at hand Equipment that should be considered ...

Page 5: ...ts 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 Follow these precautions when working with or near the control 1 Avoid the build up of static electricity on your body by not wearing clothing made of synthetic materials Wear cotton or cotton blend materials as much as...

Page 6: ...Load Sharing Module Analog Output Manual 02029 iv Woodward ...

Page 7: ...ated equipment and can be ordered from any Woodward location listed on the back page Manual 82493 1712 1724 Electrically Powered Governor 82384 SPM A Synchronizer 82461 Paralleling Phase Switch 82010 Process and Import Export Control Declaration of Incorporation In accordance with the EMC Directive 89 336 EEC and its amendments this controlling device manufactured by the Woodward Governor Company ...

Page 8: ...Load Sharing Module Analog Output Manual 02029 2 Woodward Figure 1 1 Typical System Using Load Sharing Module ...

Page 9: ...Manual 02029 Load Sharing Module Analog Output Woodward 3 Figure 1 2 Outline Drawing of Load Sharing Module ...

Page 10: ...Load Sharing Module Analog Output Manual 02029 4 Woodward Figure 1 3 Plant Wiring Diagram ...

Page 11: ...ure 1 3 The shielding prevents the wires from picking up stray signals which could cause erratic control operation Ground the shield to the system common as shown in the plant wiring diagram pin 12 on this control The shield on a length of shielded wire must be connected to common at one end only do not ground the shields on both ends of a wire Do not run a shielded wire inside a conduit with a wi...

Page 12: ... droop contact and circuit breaker auxiliary contact are closed the control is in the isochronous load sharing mode In this mode the internal load sharing line relay is energized the droop signal is disabled permitting isochronous load sharing and the load matching circuit is connected to the load sharing lines The control is in the droop mode when EITHER the droop contact or the circuit breaker a...

Page 13: ...Module make the following visual checks 1 Check that the control is securely mounted 2 Check that all electrical connections are correctly made and that all terminal screws are tight 3 Check that shielded wire is installed on the wires indicated in the plant wiring diagram and that all shields are grounded on one end only ...

Page 14: ...o run the generator set at full load run it at less than full load and reduce the voltage readings given in this calibration procedure proportionally For example run a 2 kW gen set at 1 kW and divide all voltages given in this calibration procedure by 2 If you reduce the load in this manner however be sure to reduce it by the same amount throughout this calibration procedure 5 Set the LOAD GAIN po...

Page 15: ... 16 Start the generator set and apply full load 17 Measure the load signal at terminals 22 and 23 If the phase B and C current transformers are connected correctly this voltage will be 1 3 lower than the voltage recorded in step 13 For example if the reading was 6 volts in step 13 the reading in this step should be 4 volts 18 Shut down the generator set 19 Reconnect the Phase A CT wire to terminal...

Page 16: ... both ways on each CT input The load signal voltage is recorded for each connection and the CT is then connected to the CT input terminals that produced the most positive load signal voltage and with the polarity that produced the most positive load signal voltage In a like manner the second CT is tried on each of the two remaining CT input terminals in each polarity then connected in the correct ...

Page 17: ...E Do not disconnect a current transformer from its burden resistor while the engine is running The current transformers can develop dangerously high voltages if open circuited while the engine is running and may explode Figure 3 1 Temporary CT Connection 4 Disconnect the phase C CT wires from terminals 8 and 9 and connect these two wires together Use a small screw and nut and tape the connection 5...

Page 18: ...and 23 and record this voltage 22 Shut the generator set down and reverse the phase A wires on terminals 8 and 9 23 Start the engine and apply full load 24 Measure the load signal voltage between terminals 22 and 23 and record this voltage 25 Shut down the generator set 26 Remove the phase A CT wires from terminal 8 and 9 and connect the phase A wires to the pair of terminals in the same polarity ...

Page 19: ...isconnect the wires from phase C CT Connect these two wires to the remaining pair of CT input terminals 43 Start the engine and apply full load 44 Measure the load signal voltage between terminals 22 and 23 and record this voltage 45 Shut the generator set down and reverse the phase C CT wires on the CT input terminals 46 Start the engine and apply full load 47 Measure the load signal voltage betw...

Page 20: ...stions for possible remedies The most accurate calibration is made at full load However if it is not possible to run the generator set at full load run it at less than full load and reduce the voltage readings given in this calibration procedure proportionally For example run a 2 kW gen set at 1 kW and divide all voltages given in this calibration procedure by 2 If you reduce the load however be s...

Page 21: ...um droop 4 Open the OPEN FOR DROOP switch or remove the wires from terminals 13 and 14 5 Synchronize the generator with the bus and parallel it with the bus 6 Return the RATED SPEED potentiometer to the mark made in step 2 7 Adjust the DROOP potentiometer counter clockwise decreasing droop until 100 load is achieved This completes the calibration of the Load Sharing Module If it is necessary to se...

Page 22: ...rminals 15 through 18 provide for selection of input voltages of either 95 to 130 Vac or 190 to 260 Vac The plant wiring diagram Figure 1 3 shows these connections and jumpers Do not connect inputs to Terminals 15 through 18 Power Sensor Generator kilowatt load is measured by the power sensor circuit of the Load Sharing Module The power sensor circuit senses both current amplitude and phase betwee...

Page 23: ...Manual 02029 Load Sharing Module Analog Output Woodward 17 Figure 4 1 Block Diagram ...

Page 24: ...rmined by the DROOP potentiometer Load Sharing Module output is reduced and actuator shaft position is changed according to the desired droop percentage When a generator set using the Load Sharing Module is paralleled in droop with other generator sets the common load signal on the paralleling lines is not used The frequency of the generator set could therefore vary with load so it must be determi...

Page 25: ... wiring or switch as required The Load Sharing Module will be in droop when the circuit breaker auxiliary contact is open See Droop Switch under Electrical Wiring section of Installation chapter If the droop occurs near the full load point only it is possible the engine is not producing the power called for by the fuel control or is being overloaded Either is indicated if the fuel control is at ma...

Page 26: ...Unequal speed settings 3 Unequal load gain voltages 4 Improper load sensing phasing 5 Circulating currents between generators noted by unequal power factors between generators Check for maximum voltage to the actuator If voltage to the actuator is correct but the actuator output shaft is not at maximum position an actuator or speed control problem is indicated or the linkage or fuel system is rest...

Page 27: ...ystem documentation for details Woodward Business Partner Support Woodward works with and supports a global network of independent business partners whose mission is to serve the users of Woodward controls as described here A Full Service Distributor has the primary responsibility for sales service system integration solutions technical desk support and aftermarket marketing of standard Woodward p...

Page 28: ...ervice Distributor Charges for the Replacement Exchange service are based on a flat rate plus shipping expenses You are invoiced the flat rate replacement exchange charge plus a core charge at the time the replacement unit is shipped If the core field unit is returned within 60 days a credit for the core charge will be issued Flat Rate Repair Flat Rate Repair is available for the majority of stand...

Page 29: ...e 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 upon the product and application This service can assist you with technical questions or problem solving during the normal business hours of the Woodward location you contact Emergency assi...

Page 30: ... 81 43 213 2191 Korea 82 51 636 7080 The Netherlands 31 23 5661111 Poland 48 12 295 13 00 United States 1 970 482 5811 You can also locate your nearest Woodward distributor or service facility on our website at www woodward com directory Technical Assistance If you need to telephone for technical assistance you will need to provide the following information Please write it down here before phoning...

Page 31: ...Manual 02029 Load Sharing Module Analog Output Woodward 25 ...

Page 32: ...ast Drake Road Fort Collins CO 80525 USA 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 2012 11 Colorado ...