Woodward 2301E-ST User manual

Product Manual 26694
(Revision C, 11/2018)
Original Instructions
2301E-ST Digital Electronic Load Sharing
& Speed Control for Small Steam Turbines
Installation and Operation Manual
See Chapter 1 for part numbers/applications
Released

General
Precautions
Read this entire manual and all other publications pertaining to the work to be
performed before installing, operating, or servicing this equipment.
Practice all plant and safety instructions and precautions.
Failure to follow instructions can cause personal injury and/or property damage.
Revisions
This publication may have been revised or updated since this copy was produced.
To verify that you have the latest revision, check manual
26455 , Customer
Publication Cross Reference and Revision Status & Distribution Restrictions, on
the publications page of the Woodward website:
www.woodward.com/publications
The latest version of most publications is available on the publications page. If
your publication is not there, please contact your customer service representative
to get the latest copy.
Proper Use
Any unauthorized modifications to or use of this equipment outside its specified
mechanical, electrical, or other operating limits 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 the Original Instructions"
please note:
The original source of this publication may have been updated since this
translation was made. Be sure to check manual
26455 , Customer Publication
Cross Reference and Revision Status & Distribution Restrictions, to verify whether
this translation is up to date. Out-of-date translations are marked with . Always
compare with the original for technical specifications and for proper and safe
installation and operation procedures.
Revisions— A bold, black line alongside the text identifies changes in this publication since the
last revision.
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.
Manual 26694
Copyright © Woodward, Inc. 2014 - 2018
All Rights Reserved
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Manual 26694 2301E-ST
Woodward 1
Contents
WARNINGS AND NOTICES ............................................................................................................... 5
ELECTROSTATIC DISCHARGE AWARENESS...................................................................................... 6
REGULATORY COMPLIANCE ............................................................................................................ 7
CHAPTER 1. GENERAL INFORMATION .............................................................................................. 9
Description .................................................................................................................................................... 9
Applications................................................................................................................................................. 10
References.................................................................................................................................................. 11
CHAPTER 2. INSTALLATION ........................................................................................................... 12
Introduction ................................................................................................................................................. 12
Unpacking ................................................................................................................................................... 12
Mounting Considerations ............................................................................................................................ 12
Electrical Connections................................................................................................................................. 18
Installation Check-out Procedure................................................................................................................ 28
CHAPTER 3. SERVICE AND CONFIGURATION PROCEDURES ............................................................ 29
Introduction ................................................................................................................................................. 29
Configure Menu Descriptions...................................................................................................................... 35
Save and Reset 2301E-ST Control............................................................................................................. 43
Service Menu Descriptions ......................................................................................................................... 44
CHAPTER 4. DESCRIPTION OF OPERATION .................................................................................... 75
CHAPTER 5. PRE-START AND START-UP PROCEDURES ................................................................. 87
Introduction ................................................................................................................................................. 87
Start-up Adjustments................................................................................................................................... 87
Dynamic Adjustment ................................................................................................................................... 88
Speed Sensor Check .................................................................................................................................. 88
Current Transformer (CT) Phasing Check .................................................................................................. 89
Phase Correction Procedure....................................................................................................................... 90
Load Calibration Adjustment....................................................................................................................... 92
Droop Adjustment ....................................................................................................................................... 93
CHAPTER 6. TROUBLESHOOTING .................................................................................................. 94
Introduction ................................................................................................................................................. 94
Troubleshooting Procedure......................................................................................................................... 94
Control Start-up........................................................................................................................................... 94
Control Test and Calibration ....................................................................................................................... 95
CHAPTER 7. COMMUNICATIONS................................................................................................... 100
Modbus Communication ........................................................................................................................... 100
Monitor Only.............................................................................................................................................. 100
Monitor And Control .................................................................................................................................. 100
Modbus Communication Mode ................................................................................................................. 100
Modbus Function Codes ........................................................................................................................... 101
Port Adjustments....................................................................................................................................... 102
2301E-ST Control Modbus Addresses ..................................................................................................... 102
Boolean Writes.......................................................................................................................................... 102
Boolean Reads.......................................................................................................................................... 102
Analog Reads............................................................................................................................................ 103
Analog Writes............................................................................................................................................ 103
Shutdown Command through Modbus ..................................................................................................... 103
Start Command through Modbus.............................................................................................................. 103
For More Modbus Information................................................................................................................... 104
CHAPTER 8. PRODUCT SUPPORT AND SERVICE OPTIONS ............................................................ 105
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Manual 26694 2301E-ST
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Product Support Options........................................................................................................................... 105
Product Service Options ........................................................................................................................... 105
Returning Equipment for Repair ............................................................................................................... 106
Replacement Parts.................................................................................................................................... 107
Engineering Services ................................................................................................................................ 107
Contacting Woodward’s Support Organization ......................................................................................... 107
Technical Assistance ................................................................................................................................ 108
APPENDIX A. SERVICE/CONFIGURATION CHART .......................................................................... 109
APPENDIX B. MODBUS COMMUNICATION LIST ............................................................................. 118
2301E-ST CONTROL SPECIFICATIONS ........................................................................................ 121
REVISION HISTORY ..................................................................................................................... 122
DECLARATIONS .......................................................................................................................... 123
The following are trademarks of Woodward, Inc.:
Woodward
The following are trademarks of their respective companies:
Modbus (Schneider Automation Inc.)
Windows (Intel Corporation)
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Manual 26694 2301E-ST
Woodward 3
Illustrations and Tables
Figure 1-1. Functional Control Overview .................................................................................................... 10
Figure 2-1a. 2301E-ST Outline Drawing (8273-1013/-1014)...................................................................... 13
Figure 2-1b. 2301E-ST Outline Drawing, Hazardous Location Version ..................................................... 14
Figure 2-2a. 2301E-ST Plant Wiring Diagram (sheet 1) ............................................................................. 15
Figure 2-2b. 2301E-ST Plant Wiring Diagram (sheet 2) ............................................................................. 16
Figure 2-2c. 2301E-ST Plant Wiring Diagram (notes) ................................................................................ 17
Figure 2-3. Installation of Wiring into Terminal ........................................................................................... 19
Figure 2-4. RS-232 Pin assignments for Serial Communication Cable...................................................... 26
Figure 2-5. Typical RS-422 Communications Connections ........................................................................ 26
Figure 2-6. RS-422 Terminator Locations................................................................................................... 27
Figure 2-7. Preferred Multipoint Wiring Using Shielded Twisted-pair Cable with a Separate Signal Ground
Wire ........................................................................................................................................ 27
Figure 2-8. Alternate Multipoint Wiring Using Shielded Twisted-pair Cable without a Separate Signal
Ground Wire ........................................................................................................................... 28
Figure 3-1. Null Modem Cable .................................................................................................................... 29
Figure 3-2. Configure: A**SPD, LOAD, STRT OPTIONS** Menu .............................................................. 36
Figure 3-3. Speed Relationships................................................................................................................. 36
Figure 3-4. Configure: B**DISCRETE IN OPTIONS** Menu...................................................................... 39
Figure 3-5. Configure: C**DISCRETE OUT OPTIONS** Menu.................................................................. 40
Figure 3-6. Configure: D**ANALOG INPUT OPTIONS** Menu.................................................................. 42
Figure 3-7. Configure: E**ACTUATOR OUT OPTIONS** Menu ................................................................ 43
Figure 3-8. Watch Window Menu and Explorer (Service)........................................................................... 44
Figure 3-9. Service: A** DISPLAY ANALOG INFO ** Menu....................................................................... 44
Figure 3-10. Service: B** DISPLAY LOAD INFO ** Menu.......................................................................... 46
Figure 3-11. Service: C** SHUTDOWN ** Menu ........................................................................................ 47
Figure 3-12. Service: D** ALARM ** Menu ................................................................................................. 48
Figure 3-13. Service: E** SPEED DYNAMICS ** Menu ............................................................................. 50
Figure 3-14. Control Gain as a Function of Speed Error ............................................................................ 51
Figure 3-15. Typical Transient Response Curves ...................................................................................... 52
Figure 3-16. Service: F** REMOTE SPEED CONTROL** Menu ............................................................... 54
Figure 3-17. Service: G** SPEED SETTING ** Menu ................................................................................ 55
Figure 3-18. Speed Relationships............................................................................................................... 55
Figure 3-19. Service: H** PROCESS CONTROL ** Menu ......................................................................... 56
Figure 3-20. Service: I** OVERSPEED TEST ** Menu .............................................................................. 58
Figure 3-21. Service: J** FAILED MPU OVERRIDE** Menu...................................................................... 59
Figure 3-22. Service: K** SYNCHRONIZER SETUP** Menu..................................................................... 59
Figure 3-23. Service: L* VALVE LIMITER SET ** Menu ............................................................................ 60
Figure 3-24. Service: M** LOAD SENSOR AND DROOP ** Menu............................................................ 61
Figure 3-25. Service: N** ACT LINEARIZATION ** Menu.......................................................................... 62
Figure 3-26. Service: O** ACTUATOR CALIBRATION ** Menu ................................................................ 64
Figure 3-27. Service: P** ANALOG I/O SETTINGS ** Menu...................................................................... 65
Figure 3-28. Service: Q** DISCRETE OUT SETTINGS ** Menu ............................................................... 66
Figure 3-29. Service: R** DISPLAY D_I/O STATUS ** Menu .................................................................... 68
Figure 3-30. Service: S** HARDWARE OUTPUT TEST ** Menu .............................................................. 69
Figure 3-31. Service: T** COMM PORT (232) ** Menu.............................................................................. 70
Figure 3-32. Service: U** APPLICATION INFO ** Menu............................................................................ 72
Figure 3-33. Service: V** COMM PORT (MODBUS) ** Menu.................................................................... 72
Figure 4-1. Basic Operational Architecture ................................................................................................. 76
Figure 4-2. Automatic Start-Up ................................................................................................................... 77
Figure 4-3 Semi-Automatic Start-Up........................................................................................................... 78
Figure 4-4 Manual Start-Up......................................................................................................................... 79
Figure 4-5. Critical Speed Avoidance Band ................................................................................................ 81
Figure 4-6. Paralleling System.................................................................................................................... 83
Figure 4-7. Droop Mode .............................................................................................................................. 84
Figure 4-8. Isochronous Mode .................................................................................................................... 85
Figure 4-9. Droop/Isochronous Load Sharing............................................................................................. 85
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