Woodward 2301E, Installation And Operation Manual, Page: 6 / 182

2301E Digital Control Manual 26641
iv Woodward
Illustrations and Tables
Figure 1-1a. 2301E Outline Drawing (Ordinary Locations) .................................... 4
Figure 1-1b. 2301E Outline Drawing (Hazardous Locations) ................................. 5
Figure 1-2a. 2301E Control Wiring Diagram (sheet 1) ........................................... 6
Figure 1-2b. 2301E Control Wiring Diagram (sheet 2) ........................................... 7
Figure 1-2c. 2301E Control Wiring Diagram (notes) .............................................. 8
Figure 2-1. Installation of Wiring into Terminal .....................................................11
Figure 2-2. Droop Contact and Circuit Breaker Auxiliary Contact ........................18
Figure 2-3. RS-232 Pin assignments for Serial Communication Cable ...............25
Figure 2-4. Typical RS-422 Communications Connections .................................25
Figure 2-5. RS-422 Terminator Locations ............................................................26
Figure 2-6. Preferred Multipoint Wiring Using Shielded Twisted-pair Cable with a
Separate Signal Ground Wire ..........................................................27
Figure 2-7. Alternate Multipoint Wiring Using Shielded Twisted-pair Cable without
a Separate Signal Ground Wire .......................................................27
Figure 3-1. Speed Control System .......................................................................30
Figure 3-2. Start Limit Function ............................................................................32
Figure 3-3. Dual Start Limit Function ....................................................................33
Figure 3-3. Remote Speed Reference .................................................................35
Figure 3-4. Paralleling System .............................................................................39
Figure 3-5. Droop Mode .......................................................................................40
Figure 3-6. Isochronous Mode ..............................................................................41
Figure 3-7. Droop/Isochronous Load Sharing ......................................................42
Figure 3-8. Isochronous Load Sharing .................................................................42
Figure 3-9. Load Pulse / Rejection .......................................................................44
Figure 4-1. Null Modem Cable ..............................................................................48
Figure 4-1. Null Modem Cable ..............................................................................58
Figure 4-2. Control Gain as a Function of Speed Error ........................................87
Figure 4-3. Control Gain as a Function of Fuel Demand (Load) ..........................88
Figure 4-4. Speed Filter ........................................................................................89
Figure 4-5. Typical Transient Response Curves ..................................................90
Figure 4-6. Non-linear Valve Power Curve ...........................................................95
Figure 4-7. Non-linear Valve Power Curve for Turbocharged Engine ..................95
Figure 4-8. Linearized Gain Plot ...........................................................................96
Figure 4-9. Start Limit Function ............................................................................98
Figure 4-10. Soft Start Fuel Limit Function ...........................................................99
Figure 4-11. Torque Limiter Function .................................................................101
Figure 4-12. Dual Start Fuel Limit with Ramp ....................................................101
Figure 4-13. MAP Limiter Function .....................................................................103
Figure 5-1. Temporary Wiring for Transformer Phase Correction ......................122
Figure 5-2. Droop Adjustment ............................................................................124
Figure 6-1. Trend Tool Trace Example 1 ...........................................................126
Figure 6-2. Trend Tool Trace Example 2 ...........................................................127
Figure 6-3. Trend Tool Trace Example 3 ...........................................................127
Figure 6-4. Trend Tool Trace Example 4 ...........................................................128
Figure 6-5. Trend Tool Trace Example 5 ...........................................................128
Figure 6-6. Trend Tool Trace Example 6 ...........................................................128
Figure B-1. Gain Potentiometer Conversion Chart .............................................156
Figure B-2. Reset Potentiometer Conversion Chart ...........................................156
Figure B-3. Actuator Compensation Potentiometer Conversion Chart ..............157
Figure E-
1. Location of “First Time Configuration Wizard” button ......................165
Table 3-1. Description of Discrete Inputs While in Load Control ..........................38
Table 8-1. RTU Modbus .....................................................................................138
Table 8-2. Modbus Frame Definition ..................................................................138
Table 8-3. Modbus Function Codes ...................................................................139
Table 8-4. Port Adjustments ...............................................................................139
Table B-1. PID Examples ...................................................................................155