Manual 35018V1
505XT Digital Control System for Steam Turbines
Woodward
3
Returning Equipment for Repair ............................................................................................................... 223
Replacement Parts .................................................................................................................................... 224
Engineering Services ................................................................................................................................ 224
Contacting Woodward’s Support Organization ......................................................................................... 224
Technical Assistance ................................................................................................................................ 225
A
PPENDIX
A.
505XT
C
ONFIGURATION
M
ODE
W
ORKSHEETS
........................................................ 226
R
EVISION
H
ISTORY
..................................................................................................................... 237
D
ECLARATIONS
.......................................................................................................................... 238
The following are trademarks of Woodward, Inc.:
ProTech
Woodward
The following are trademarks of their respective companies:
Modbus (Schneider Automation Inc.)
Pentium (Intel Corporation)
Illustrations and Tables
Figure 1-1. Typical Single or Dual Inlet Steam Turbine .............................................................................. 16
Figure 1-2. Typical Extraction and/or Admission Steam Turbine ................................................................ 16
Figure 1-3. Explanation of Symbols ............................................................................................................ 18
Figure 1-4. Single or Split-Range Turbine Configurations .......................................................................... 18
(Valve Demand Overview) .......................................................................................................................... 18
Figure 1-5. Turbine Configurations using Extraction and/or Admission ..................................................... 19
(Valve Demand Overview) .......................................................................................................................... 19
Figure 1-6. LinkNet Distributed I/O Node .................................................................................................... 23
Figure 1-7. Vibration Wizard for LinkNet Node 1 ........................................................................................ 24
Figure 1-8. LinkNet Node 1 with 4 Vibration Signals .................................................................................. 24
Figure 1-9. Vibration Monitoring Page ........................................................................................................ 25
Figure 1-10. 505 Keypad and Display ......................................................................................................... 26
Figure 2-1. Functional Block Diagram (505 Control) .................................................................................. 28
Figure 2-2. 505D Outline Drawing .............................................................................................................. 31
Figure 2-3. COM1 Example RS-485 wiring ................................................................................................. 37
Figure 2-4. 505 Back Cover Label .............................................................................................................. 38
Figure 2-5. Terminal Block Connectors ...................................................................................................... 39
Figure 2-6. Speed Sensor Block Diagram .................................................................................................. 40
Figure 2-7. Analog Input – Self-Powered Block Diagram ........................................................................... 41
Figure 2-8. Analog Input – Loop-Powered Block Diagram ......................................................................... 42
Figure 2-9. Analog Output Block Diagram .................................................................................................. 43
Figure 2-10. Actuator Output Block Diagram .............................................................................................. 44
Figure 2-11. Discrete Input Block Diagram ................................................................................................. 44
Figure 2-12. Relay Output Block Diagram .................................................................................................. 45
Figure 3-1. Open Wire Detection Test ........................................................................................................ 50
Figure 3-2. Speed Input Channel – Phase Difference ................................................................................ 51
Figure 3-3. Speed Probe Rotation Check ................................................................................................... 52
Figure 3-4. Speed Probe Zero Speed Detect ............................................................................................. 52
Figure 3-5. Manual Start Mode Example .................................................................................................... 54
Figure 3-6. Semiautomatic Start mode Example ........................................................................................ 55
Figure 3-7. Automatic Start Mode Example ................................................................................................ 56
Figure 3-8. Idle/Rated Start ......................................................................................................................... 58
Figure 3-9. Automatic Start Sequence ........................................................................................................ 59
Figure 3-10. Speed Control Functional Diagram ........................................................................................ 64