Woodward 723PLUS - Page 5

Manual 02879 723PLUS/Analog Load Sharing
Woodward iii
Illustrations and Tables
Figure 1-1. Flexible Coupled Generator Set ..........................................................2
Figure 1-2. 723PLUS Digital Speed Control ..........................................................5
Figure 1-3. Watch Window Display........................................................................6
Figure 1-4. Hand Held Programmer.......................................................................7
Figure 1-5a. Control Wiring Diagram .....................................................................8
Figure 1-5b. Control Wiring Diagram (Notes).........................................................9
Figure 1-6. Typical 723PLUS Connections..........................................................10
Figure 3-1. 723PLUS Control Internal Jumpers...................................................14
Figure 4-1. Hand Held Programmer Functions ....................................................46
Figure 4-2. Control Gain as a Function of Speed Error .......................................60
Figure 4-3. Control Gain as a Function of Control Output ...................................60
Figure 4-4. Typical Transient Response Curves..................................................61
Figure 4-5. Speed Filter........................................................................................62
Figure 4-6. Start Limit Function............................................................................66
Figure 4-7. Torque Limit Curve ............................................................................69
Figure 6-1. Simplified Block Diagram...................................................................92
Figure 6-2a. Detailed Block Diagram ...................................................................94
Figure 6-2b. Detailed Block Diagram ...................................................................95
Figure 6-3. Notch Filter.........................................................................................97
Figure 6-4. Start Limit Function............................................................................98
Figure 6-5. Fuel Limit Breakpoints .......................................................................99
Figure 6-6. Remote Speed Reference ...............................................................102
Figure 6-7. Paralleling System ...........................................................................109
Figure 6-8. Droop Mode .....................................................................................110
Figure 6-9. Isochronous Mode ...........................................................................111
Figure 6-10. Droop/Isochronous Load Sharing..................................................112
Figure 6-11. Isochronous Load Sharing.............................................................112
Figure 6-12. Isochronous Base Load on an Isolated Bus..................................112
Figure A-1. 723PLUS RS-232 Connections.......................................................123
Figure A-2. 723PLUS RS-422 Connections with Optional Termination at
Receiver.........................................................................................123
Figure A-3. 723PLUS RS-485 Connections with Optional Termination.............124
Figure A-4. RS-422 Terminator Locations .........................................................124
Figure A-5. Preferred Multipoint Wiring Using Shielded Twisted-pair Cable with a
Separate Signal Ground Wire........................................................125
Figure A-6. Alternate Multipoint Wiring Using Shielded Twisted-pair Cable
without a Separate Signal Ground Wire........................................125
Figure B-1. LinkNet Relay Contacts...................................................................127
Figure B-2. Outline Drawing of I/O Module ........................................................129
Figure B-3. Discrete Input Module Block Diagram.............................................130
Figure B-4. Discrete Input Module Wiring Diagram ...........................................131
Figure B-5. 4–20 mA Input Module Block Diagram............................................132
Figure B-6. 4–20 mA Input Module Wiring Diagram ..........................................133
Figure B-7. Thermocouple Input Module Block Diagram...................................134
Figure B-8. Thermocouple Input Module Wiring Diagram..................................135
Figure B-9. RTD Input Module Block Diagram...................................................136
Figure B-10. RTD Input Module Wiring Diagram ...............................................137
Figure B-11. Relay Output Module Block Diagram ............................................138
Figure B-12. Relay Output Module Wiring Diagram...........................................139
Figure B-13. 4–20 mA Output Module Block Diagram.......................................140
Figure B-14. 4–20 mA Output Module Wiring Diagram .....................................141
Figure B-15a. Troubleshooting Flowchart (1 of 2) .............................................142
Figure B-15b. Troubleshooting Flowchart (2 of 2) .............................................143