Woodward 723PLUS Installation And Operation Manual
  1. Manuals
  2. Brands
  3. Woodward Manuals
  4. Controller
  5. 723PLUS
  6. Installation and operation manual

Woodward 723PLUS Installation And Operation Manual

Digital speed control for reciprocating engines- analog load sharing
Hide thumbs Also See for 723PLUS:
Table of Contents

Advertisement

Quick Links

See also: Technical Manual
Installation and Operation Manual
723PLUS Digital Speed Control
for Reciprocating Engines—
Analog Load Sharing
8280-414, 8280-415, 8280-480, 8280-481
Manual 02879 (Revision A)

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 723PLUS and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Woodward 723PLUS

Summary of Contents for Woodward 723PLUS

  • Page 1 Installation and Operation Manual 723PLUS Digital Speed Control for Reciprocating Engines— Analog Load Sharing 8280-414, 8280-415, 8280-480, 8280-481 Manual 02879 (Revision A)
  • Page 2 Woodward Governor Company reserves the right to update any portion of this publication at any time. Information provided by Woodward Governor Company is believed to be correct and reliable. However, no responsibility is assumed by Woodward Governor Company unless otherwise expressly undertaken.

  • Page 3: Table Of Contents

    723PLUS/Analog Load Sharing Contents 1. G ............1 HAPTER ENERAL NFORMATION Introduction......................1 Declaration of Incorporation ...................1 Application ......................1 Control Options.......................2 723PLUS Digital Speed Control Accessories ............3 2. E ......11 HAPTER LECTROSTATIC ISCHARGE WARENESS 3. I ................ 12 HAPTER NSTALLATION Introduction......................12...
  • Page 4 Conclusion of Test and Calibration Procedures..........117 8. S ..............118 HAPTER ERVICE PTIONS Product Service Options..................118 Returning Equipment for Repair................ 119 Replacement Parts .................... 120 How to Contact Woodward................120 Engineering Services..................121 Technical Assistance..................122 A. S ......123 PPENDIX ERIAL OMMUNICATION IRING Grounding and Shielding ...................
  • Page 5 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.
  • Page 6 723PLUS/Analog Load Sharing Manual 02879 Illustrations and Tables Figure B-16. Direct Wired Network..............145 Figure B-17. Network Wired Via Stubs.............. 145 Table 1-1. LinkNet Modules (Summary)..............3 Table 1-2. LinkNet Modules (Address)..............4 Table 6-1. Description of Discrete Inputs While in Load Control ...... 107 Table 6-2.

  • Page 7: Chapter 1. General Information

    Directive and bears the CE mark. Application This 723PLUS Digital Speed Control controls the speed and load of reciprocating engines in generator set service, including those with flexible couplings (see Figure 1-1). The control includes inputs for two magnetic pickups (MPUs) or...

  • Page 8: Control Options

    723PLUS/Analog Load Sharing Manual 02879 A typical 723PLUS control system is shown in Figure 1-6. The system shown is a genset with a flexible coupling between the engine and the generator. The generator is connected (along with other gensets) to an infinite bus and a plant load.

  • Page 9: 723Plus Digital Speed Control Accessories

    They plug into communication port J1 of the control. [Hand Held Programmer part number 9905-292 can also be used.] See Figures 1-3 and 1-4. A kW feedback device such as the Woodward Real Power Sensor (RPS) or commercial kW transducer can be used to provide the 723 control with a signal representing generator load.

  • Page 10: Table 1-2. Linknet Modules (Address)

    723PLUS/Analog Load Sharing Manual 02879 Addr. Description Channels Notes J TC–Fail High J TC Input J TC Input J TC Input 100 Ω Am RTD Input 4–20 mA Input Discrete Input Relay Output Analog Output Total Table 1-2. LinkNet Modules (Address)

  • Page 11: Figure 1-2. 723Plus Digital Speed Control

    Manual 02879 723PLUS/Analog Load Sharing Figure 1-2. 723PLUS Digital Speed Control Woodward...

  • Page 12: Figure 1-3. Watch Window Display

    723PLUS/Analog Load Sharing Manual 02879 Figure 1-3. Watch Window Display Woodward...

  • Page 13: Figure 1-4. Hand Held Programmer

    Manual 02879 723PLUS/Analog Load Sharing Figure 1-4. Hand Held Programmer Woodward...

  • Page 14: Figure 1-5A. Control Wiring Diagram

    723PLUS/Analog Load Sharing Manual 02879 Figure 1-5a. Control Wiring Diagram Woodward...

  • Page 15: Figure 1-5B. Control Wiring Diagram (Notes)

    Manual 02879 723PLUS/Analog Load Sharing Figure 1-5b. Control Wiring Diagram (Notes) Woodward...

  • Page 16: Figure 1-6. Typical 723Plus Connections

    723PLUS/Analog Load Sharing Manual 02879 Figure 1-6. Typical 723PLUS Connections Woodward...

  • Page 17: Chapter 2. Electrostatic Discharge Awareness

    PCB from the control cabinet, place it in the antistatic protective bag. CAUTION—ELECTROSTATIC DISCHARGE To prevent damage to electronic components 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. Woodward...

  • Page 18: Chapter 3. Installation

    If any damage is found, immediately notify the shipper. Power Requirements The high-voltage versions of the 723PLUS Digital Speed Control require a voltage source of 90 to 150 Vdc. The low-voltage versions require a voltage source of 18 to 40 Vdc.

  • Page 19: Internal Jumpers

    723PLUS/Analog Load Sharing Internal Jumpers The 723PLUS control has ten, two-position internal jumpers (JPR1 through JPR20) located on the top of the printed circuit board. If you need to change any jumper to match your control needs, be sure to read Chapter 2, Electrostatic Discharge Awareness, before proceeding.

  • Page 20: Figure 3-1. 723Plus Control Internal Jumpers

    723PLUS/Analog Load Sharing Manual 02879 Figure 3-1. 723PLUS Control Internal Jumpers Woodward...
  • Page 21 Power supply output must be low impedance (for example, directly from batteries). DO NOT power the control from high-voltage sources with resistors and zener diodes in series with the control power input. The 723PLUS control contains a switching power supply which requires a current surge (7–22 A) to start properly.
  • Page 22 Connect the system Load Sharing Signal lines to terminals 9(+) and 10(–). Use a shielded twisted-pair cable. The shield must be continuous for all units connected and should be connected to ground at only one location. The 723PLUS control provides an internal relay for connecting the Load Sharing Signal to the internal circuitry at the appropriate times.
  • Page 23 To prevent possible damage to the control or poor control performance resulting from ground loop problems, we recommend using current-loop isolators if the 723PLUS control's analog inputs and outputs must both be used with non-isolated devices. A number of manufacturers offer 20 mA loop isolators.
  • Page 24 The unit may be configured for 4– 20 mA. If the hardware jumper is changed, the software settings must also be changed. LON #1 and LON #2 (Terminals 23—28) The 723PLUS control provides two separate LON communication channels for ® communicating with Echelon networks.
  • Page 25 These terminals must be isolated from ground. The green light above each input terminal will illuminate for a valid TRUE state. In systems which provide an external low voltage source to power the 723PLUS control (or other systems where external low voltage dc power is available), the discrete inputs may be powered by this external low voltage.
  • Page 26 723PLUS/Analog Load Sharing Manual 02879 Base Load (Input B; Terminal 30) The input switch or relay contact used to activate the Base Load command connects to terminal 30 (Discrete Input B). This discrete input will cause the Load Control Function to operate in Base Load. In this mode of operation the governor will control the load on the generator.
  • Page 27 Manual 02879 723PLUS/Analog Load Sharing Raise Speed/Load Contact (Input E; Terminal 33) The input switch or relay contact used to activate the Raise Speed/Load command connects to terminal 33 (Discrete Input E). This discrete input changes the control operation by increasing the speed reference ramp when in droop or isochronous modes and by increasing the baseload reference when in baseload mode.
  • Page 28 723PLUS/Analog Load Sharing Manual 02879 When the input switch or relay contacts are closed (discrete input in the TRUE state), the control will lower the speed or baseload reference depending on mode selection. Lower speed is limited to the minimum speed limit. Lower load is limited to the unload trip level limit.
  • Page 29 Use a shielded twisted-pair cable to connect the low impedance output from SPM-A terminal 22 to 723PLUS control terminal 45 (±) and SPM-A terminal 21 to 723PLUS control terminal 46 (com). Remove the factory installed jumper between terminals 45 and 44.
  • Page 30 723PLUS/Analog Load Sharing Manual 02879 The 723PLUS control is designed to receive either 4 to 20 mA or 1 to 5 Vdc, representing a minimum Remote Speed/Load Setpoint to a maximum Remote Speed/Load Setpoint. Separate software minimum and maximum settings are provided for remote speed (rpm) and remote load (kW).
  • Page 31 Communication Port J3 Communication Port J3 is used to connect a separate Modbus device to the 723PLUS control. This device is used to read control parameters and inputs from connected LinkNet nodes. The Modbus device can drive LinkNet nodes and certain 723PLUS control parameters.

  • Page 32: Installation Checkout Procedure

    #1, #2, and #4 respectively. The signed 16-bit integer must be scaled as milliamps x1000 for communication (e.g., to produce a 12 mA output from the 723PLUS analog output #1, a value of 12000 must be applied to address 4:0002).
  • Page 33 Manual 02879 723PLUS/Analog Load Sharing Check for correct wiring in accordance with the control wiring diagram, Figure 1-5. Check for broken terminals and loose terminal screws. Check the speed sensor(s) for visible damage. If the sensor is a magnetic pickup, check the clearance between the gear and the sensor, and adjust if necessary.

  • Page 34: Chapter 4. Entering Control Set Points

    Watch Window PC Interface Watch Window was developed by Woodward to be a ServLink client software product to provide a generic PC interface to any 723PLUS control and is a very powerful setup, testing, and troubleshooting tool. Watch Window provides a...
  • Page 35 Read ‘Control Properties’ to display the part number and revision level of the software in the control. Refer to this number and revision level in any correspondence with Woodward (write this information in the Programming Checklist, Appendix C). More information about Watch Window can be found in manual 26007, Woodward Watch Window Software Getting Started.

  • Page 36: 723Plus Analog Load Sharing Control View

    Manual 02879 723PLUS Analog Load Sharing Control View Woodward has created Control View as a PC Interface for the 723PLUS Analog Load Sharing control. This custom graphical user interface is a ServLink client that has all 723PLUS Analog Load Sharing control tunable values and monitoring parameters laid out in an intuitive manner.

  • Page 37: Control Modes

    Manual 02879 723PLUS/Analog Load Sharing Control Modes Service Mode When the controller is in use, it is in service mode. While in service mode, configuration values cannot be changed, and tunable values can be changed only within 10% of their value per single adjustment.
  • Page 38 723PLUS/Analog Load Sharing Manual 02879 Startup Screen This following Startup Screen appears when the 723PLUS Control View interface is opened. This shows the Monitor Shutdown screen and displays current status of all shutdowns. An Alarm Reset button is provided to reset any control alarms and shutdowns that have been cleared.
  • Page 39 Manual 02879 723PLUS/Analog Load Sharing The following is an example of right clicking to select and move to the “Thermocouple” screen, which is a sub-screen of “LinkNet” and “Monitor”. It displays the full lists of other LinkNet sub-screens and Monitor sub-screens as well as all Main screens (including those that may be hidden).
  • Page 40 723PLUS/Analog Load Sharing Manual 02879 The following is the Fuel Limiter screen with the External Fuel Limiter sub-tab open. NOTE CFIG Option menu item ‘Use External Fuel Limiter’ must be set TRUE to make this sub-tab visible. Right clicking on a gauge panel will bring up a different quick menu.
  • Page 41 723PLUS EEPROM, overwriting all previous values. The Control mode must be set for ‘Configure Mode’ before this function is possible. • Save As Config File will dump all settings from the 723PLUS controller EEPROM into a Configuration File. CAUTION—SAVE SET POINTS...
  • Page 42 723PLUS/Analog Load Sharing Manual 02879 To view a curve, select Graphs from the menu bar, and a list of curves will pop- up. Click the desired curve. The following External Fuel Limit Curve screen, as well as screens for the other listed curves, are available for both viewing the curve graph and changing the curve set points.
  • Page 43 Manual 02879 723PLUS/Analog Load Sharing Holding the cursor over a curve breakpoint will display the coordinates, in (x,y) format, for that specific point as shown below. Right clicking on a breakpoint and selecting “properties” will pop-up a “Point Adjustment” window for that point as shown below.
  • Page 44 723PLUS/Analog Load Sharing Manual 02879 The setup dialog for a 2D graph axes and colors is shown below. Trends Purpose: The purpose of a Trend Graph is to provide a visual relational representation of data as it changes over time. This is especially useful when tuning an engine and different fluctuations need to be seen and dealt with analytically.
  • Page 45 Manual 02879 723PLUS/Analog Load Sharing How To Read and Use a Trend Graph There are two features directly accessible on the Trend Graph • By right clicking anywhere on the graph a Quick Menu with different options will appear. •...
  • Page 46 723PLUS/Analog Load Sharing Manual 02879 Here is a short sample of a log generated from the above trend. This sample covers almost three seconds of time. Log Status: This will show a dialog with estimated data rate values indicating how much physical data is being logged per second, per minute, and per hour.
  • Page 47 Manual 02879 723PLUS/Analog Load Sharing Properties: Will display this dialog. Pen X Enabled: Enables or disables graph of data for that pen. This is useful if pens are overlapping or only certain values need to be monitored or logged. Pen X Color: Change the color of the trace of the pen. Useful for maintaining contrast.
  • Page 48 723PLUS/Analog Load Sharing Manual 02879 Decimals: Controls how many decimal places are shown for all data displayed on the graph. This is also used to control how many decimals places are used when data is written to a log file.

  • Page 49: Hand Held Programmer And Menus

    BKSP and SPACE keys will scroll through the display to show the remainder of a prompt if it is longer than the display screen's 19 characters. The 723PLUS has two sets of menus, the Service menus and the Configure menus. The Service menus allow easy access and tuning while the engine is running.
  • Page 50 723PLUS/Analog Load Sharing Manual 02879 Configure Menus To access the Configure menus, the engine must be shutdown. Press the . key. The display will show, 'To select configure, press enter'. Press the ENTER key and the display will show, 'To shutdown I/O, press enter'. Press the ENTER key and this will allow you into the Configure menus.
  • Page 51 (solid square) Not used. Displays the 723PLUS control part number and software revision level (can only be accessed from the TOP main screen). To return to menu header or to main screen, or to exit Configure and save set points.

  • Page 52: Configuration Menu Descriptions

    (reverse-acting actuators should always incorporate a mechanical ballhead backup governor, such as the Woodward EGB). USE 2nd DYNAMICS should be set TRUE to bring into view the 2nd SPEED DYNAMICS menu and permit the use of the 2nd Dynamics function.
  • Page 53 Manual 02879 723PLUS/Analog Load Sharing USE 5-GAIN MAP should be set TRUE to bring into view the 1st DYNAMICS- 5 GAIN menu and permit the use of a 5-Gain Curve for setting the control gain as a function of fuel demand. If Use 2nd Dynamics is also set TRUE, the 2nd DYNAMICS- 5 GAIN menu will appear and permit the use of a second 5-Gain Curve.
  • Page 54 723PLUS/Analog Load Sharing Manual 02879 13. USE D AS 2nd LD RAMP is set to TRUE to make contact “D” a second load ramp rate selector input. See Table 3-1 for Contact D options. 14. USE FD ISOCH is set to TRUE to activate Fuel Demand Isoch load sharing control when the kW transducer fails.
  • Page 55 Manual 02879 723PLUS/Analog Load Sharing ASPD # 1 MAX FREQ is used to set the range that the frequency-to-digital converter can sense. It should be set to the maximum running frequency multiplied by 1.2. To get operating frequency: Hz = #Teeth * rpm/60 [8280-414/-415 only] ASPD #2 TEETH is the number of teeth or holes in the gear or flywheel that speed sensor #2 is on.
  • Page 56 723PLUS/Analog Load Sharing Manual 02879 USE DIG SPD SENSOR is set TRUE to use digital processing of the speed sensor input. Set to FALSE to disable digital processing and use Analog processing of the speed sensor input. [8280-414/-415 only] NOTE Better control performance will be obtained when sensing speed from a gear rotating at full engine speed.
  • Page 57 Manual 02879 723PLUS/Analog Load Sharing KW IN FAIL sets the condition which will occur when the kW Load Transducer input drops below 2 mA or increases above 21 mA. This condition may be enabled as a Shutdown, Alarm, or both, by selecting TRUE in the appropriate menu.
  • Page 58 723PLUS/Analog Load Sharing Manual 02879 17 SPEED SWITCH is set to TRUE to actuate Relay Output when this speed switch is triggered. Set to FALSE to prevent Relay Output actuation. This indicator is non-latching. Shutdown Setup HI FUEL DEMND SETPT (%FD)—Enter the % Fuel Demand fault level required to trigger the HI FUEL DEMND LEVEL shutdown.
  • Page 59 Manual 02879 723PLUS/Analog Load Sharing 10. SPD SWITCH DROPOUT (RPM)—Enter the engine speed level (rpm) required to clear SPEED SWITCH shutdown. NOTE If PICKUP is less than DROPOUT, the switch will be on below the PICKUP setting, and off above the DROPOUT setting. If PICKUP is greater than DROPOUT, the switch will be on above the PICKUP setting, and off below the DROPOUT setting.
  • Page 60 CFIG COMMUNICATION The 723PLUS has two serial ports. Port 2 is configured as a ServLink port. Port 3 is configured to support the Modbus protocol. These ports are configured in this menu to set the network address that they will use and to set port 3 to use the Modbus ASCII or RTU mode.
  • Page 61 Manual 02879 723PLUS/Analog Load Sharing AOUT 1 SELECT determines which parameter controls Analog Output #1. The parameters which can be selected are: 1. Engine Speed 2. Engine Speed Reference 3. Fuel Demand 4. Reverse Acting Fuel Demand 5. Torsional Level 6.

  • Page 62: Service Menu Descriptions

    723PLUS/Analog Load Sharing Manual 02879 AOUT 4 4-20 mA scales Analog Output #4 for 4 to 20 mA or 0 to 200 mA. A value of FALSE will scale the output for 0 to 200 mA. A value of TRUE will scale the output for 4 to 20 mA.
  • Page 63 Manual 02879 723PLUS/Analog Load Sharing 8-HI FUEL DEMAND displays the present condition of the latched shutdown. This shutdown will only indicate if it has been activated in the CFIG SHUTDOWN menu. 10. 9-HI SPEED displays the present condition of the latched shutdown. This shutdown will only indicate if it has been activated in the CFIG SHUTDOWN menu.
  • Page 64 723PLUS/Analog Load Sharing Manual 02879 10. 9-HI SPEED displays the present condition of the latched alarm. This alarm will only indicate if it has been activated in the CFIG ALARM menu. 11. 10-HIGH TORSIONAL displays the present condition of the latched alarm.
  • Page 65 Manual 02879 723PLUS/Analog Load Sharing WINDOW WIDTH (RPM) is the magnitude (in rpm) of a compensated speed error (Ec) at which the control automatically switches to fast response. The control uses the absolute value of compensated speed error (Ec) to make this switch.

  • Page 66: Figure 4-2. Control Gain As A Function Of Speed Error

    723PLUS/Analog Load Sharing Manual 02879 Figure 4-2. Control Gain as a Function of Speed Error Figure 4-3. Control Gain as a Function of Control Output Woodward...

  • Page 67: Figure 4-4. Typical Transient Response Curves

    Manual 02879 723PLUS/Analog Load Sharing Figure 4-4. Typical Transient Response Curves Woodward...
  • Page 68 723PLUS/Analog Load Sharing Manual 02879 Figure 4-5. Speed Filter 1st Dynamics/2nd Dynamics–5 Gain This menu and control function is enabled when CFIG OPTION ‘USE 5-GAIN MAP’ is TRUE and provides a 5-point curve as a function of fuel demand for the variable GAIN set point.
  • Page 69 Manual 02879 723PLUS/Analog Load Sharing 11. RESET compensates for the lag time of the engine. It adjusts the time required for the control to return the speed to zero error after a disturbance. Reset is adjusted to prevent slow hunting and to minimize speed overshoot following a load disturbance.
  • Page 70 Set the value equal to engine inertia divided by (engine inertia + driven load inertia). TORS SCALE (%RATED) is the percentage of rated rpm that corresponds to 100% torsional measurement in the 723PLUS. Example: TORS SCALE=1%, RATED=1200 rpm, Torsional RPM=6 rpm, therefore torsional measurement: = 50% (1200 x 0.01)
  • Page 71 Manual 02879 723PLUS/Analog Load Sharing TORSNL FUEL LIMIT (%FD) is the percentage of Fuel Demand the actuator output will be limited to when the torsional measurement level exceeds the TORSNL LEVEL @LIMIT (%). TORSNL LEVEL @LIMIT (%) is the torsional level at which the TORSNL FUEL LIMIT is activated.

  • Page 72: Figure 4-6. Start Limit Function

    723PLUS/Analog Load Sharing Manual 02879 Figure 4-6. Start Limit Function MAX FUEL LIMIT (%FD) sets the maximum percent fuel demand. Maximum (100%) is based on 200 mA. This is an electronic rack stop which is active in all modes of operation.
  • Page 73 Manual 02879 723PLUS/Analog Load Sharing IDLE SPEED (RPM) is the speed that the speed reference ramp goes to when the Close for Rated Discrete Input is OPEN. It is normally the speed at which the engine is operated at start-up. It is also used during cool down.
  • Page 74 6.0 is usually sufficient to allow load sharing with other units utilizing 0-3 Vdc analog load sharing lines. This value must be common with all other controls connected to the common Load Sharing Signal. If only 723PLUS controls are used in the load sharing scheme, leave this value set to 6.0 Vdc.

  • Page 75: Figure 4-7. Torque Limit Curve

    Manual 02879 723PLUS/Analog Load Sharing 11. 2ND UNLD RATE (KW/SEC)—Enter the second unload ramp rate. Second unload ramp rate is active when ‘USE CONT D AS RESET’ is set FALSE, ‘USE CONT D AS 2nd LOAD RAMP’ is set TRUE and Contact D is closed.
  • Page 76 KW SENSOR @4mA (KW)—Enter the transducer kilowatt indication in kW when the device is delivering 4 mA to the 723PLUS input (it may be negative kW). If a voltage sensing device is provided, enter the input kW at 1 Vdc.
  • Page 77 Manual 02879 723PLUS/Analog Load Sharing Set Analog Outputs This menu sets the Analog Outputs to allow the proper scaling of each output based on the engineering units of the software configured input and type of hardware configured output. The items below should be entered so that the MIN...
  • Page 78 723PLUS/Analog Load Sharing Manual 02879 KW READ VOLTS (AI1) when TRUE changes the displayed AI1 kW Transducer Input to read Voltage instead of milliamps. SYNC OFFSET (AI2) adjusts the displayed AI2 Synchronizer Input Voltage. Use this to calibrate for 0.0 volts input.
  • Page 79 Hand Held Programmer will be lost. Comm Port Setup The 723PLUS has two serial ports. Port 2 is configured as a ServLink port. Port 3 is configured to support the Modbus protocol. The ports are configured in this menu for the type of hardware interface and other parameters.
  • Page 80 PORT 3 TIMEOUT sets the time period, in seconds, the Modbus slave will wait for a master to query the 723PLUS. If the master connected to Port 3 does not poll within the timeout period, a configured MODBUS PORT 3 FAIL shutdown and/or alarm will be activated.
  • Page 81 Manual 02879 723PLUS/Analog Load Sharing 10. PORT 3 EX ERR NUM is the number of the exception error that occurred, based off the above table. 11. PORT 3 EX ERR PCT is the exception error divided by the total communication transactions, and reflects the quality of the port 3 communications.
  • Page 82 723PLUS/Analog Load Sharing Manual 02879 AI Module 1 This menu displays and allows calibration of LinkNet Analog Input Module 1. The offset and span should be adjusted to produces the correct mA display of the input present. The LinkNet Module must be connected and properly addressed for this menu to come into view.
  • Page 83 Manual 02879 723PLUS/Analog Load Sharing AO Module 1 This menu displays and allows calibration of LinkNet Analog Output Module 1. The offset and span should be adjusted to produces the correct mA output for the input value (scaled in engineering units). The LinkNet Module must be connected and properly addressed for this menu to come into view.
  • Page 84 Display Analog I/O This menu is for display only except for an Alarm Reset function.. It displays the analog inputs and outputs of the 723PLUS control. SPD SENS IN #1 shows the frequency, in hertz, of the Speed Sensor #1 input signal.
  • Page 85 TRUE then FALSE to issue a reset. Load Control Mode This menu allows determination of 723PLUS load control mode. This menu can be very useful for troubleshooting. See Table 6-1 for general mode information. FD DROOP CONTROL—Test mode for setting up fuel demand droop backup.
  • Page 86 723PLUS/Analog Load Sharing Manual 02879 LSS Control Mode This menu is for display only. It displays the Control Modes in the 723PLUS control. SPEED IN CONTROL will show TRUE when the fuel demand is being controlled by the Speed Control.
  • Page 87 Manual 02879 723PLUS/Analog Load Sharing FUEL DEMAND displays the percent fuel demand. This is NOT the same as the actuator output if configured for reverse acting. This is the same if configured for direct acting. SPEED REF displays the output of the speed reference ramp before any biases are applied.
  • Page 88 Manual 02879 Force 723 DO This menu allows the 723PLUS Discrete Outputs to be manually forced on or off during installation to test the output loops. This feature and menu is only available when FORCE DISCRETE OUTS on the CFIG OPTION menu is set TRUE.
  • Page 89 Manual 02879 723PLUS/Analog Load Sharing DO1 CH1 FORCE is set to TRUE to force Discrete Output 1, Channel 1 to the energized state. Set value to FALSE to force the Discrete Output 1, Channel 1 to the de-energized state. DO1 CH2 FORCE is set to TRUE to force Discrete Output 1, Channel 2 to the energized state.

  • Page 90: Chapter 5. Initial Adjustments

    723PLUS/Analog Load Sharing Manual 02879 Chapter 5. Initial Adjustments Introduction This chapter contains information on control calibration. It includes initial prestart- up and start-up settings and adjustments. WARNING—OVERSPEED An improperly calibrated control could cause an engine overspeed or other damage to the engine. To prevent possible serious injury from an overspeeding engine, read this entire procedure before starting the engine.

  • Page 91: Dynamic Adjustments

    Manual 02879 723PLUS/Analog Load Sharing Adjust for stable operation. If the engine is hunting at a rapid rate, slowly decrease the Gain until performance is stable. If the engine is hunting at a slow rate, increase the Reset time. If increasing the Reset time does not stabilize the engine, it also may be necessary to slowly decrease the Gain OR to slowly decrease the Gain and increase the Compensation.
  • Page 92 723PLUS/Analog Load Sharing Manual 02879 • Gain is too low. If the preceding procedure does not improve the slow periodic cycling of the engine speed, the control may be limiting cycling through the low gain control region set by the Window Width set point.

  • Page 93: Speed Adjustments

    Manual 02879 723PLUS/Analog Load Sharing While operating at full load, record the Actuator Output on the Display Menu. Set the Fuel Demand @ Max LD (KW SETTING menu) to this setting. Select the Maximum Fuel Limit set point on the Fuel Limiter Menu.

  • Page 94: Torsional Adjustments

    723PLUS/Analog Load Sharing Manual 02879 Torsional Adjustments The Torsional Level is determined by the instantaneous difference in speed between the two speed sensors. The difference in speed is an indication of the energy stored or released by the flexible coupling. There are two separate functions which can occur with the Torsional Level.

  • Page 95: Conclusion Of Setup Procedures

    Manual 02879 723PLUS/Analog Load Sharing TORSNL LEVEL @CLEAR can be adjusted to the reading recorded above for the TORSIONAL LEVEL after the limit was reduced. NOTE The Torsional Limit Function may not be required if the Torsional Filter function can reduce oscillations sufficiently. This situation is desirable because the load is not affected while operating at the torsion point.

  • Page 96: Chapter 6. Description Of Operation

    Chapter 6. Description of Operation General This chapter provides an overview of the features and operation of the 723PLUS Digital Speed and Load Control. Figures 6-1 and 6-2 show the control block diagram, for reference in the following descriptions. The 723PLUS Digital Speed Control uses a 32-bit microprocessor for all control functions.

  • Page 97: Fuel Control

    723PLUS/Analog Load Sharing Fuel Control The basic operation of the 723PLUS control is to provide a dynamically stable closed loop path between the engine fuel delivery system and feedback paths of engine speed and generator load. If generator load is not directly available, a second feedback path from the Fuel Demand is used to control load.

  • Page 98: Figure 6-1. Simplified Block Diagram

    723PLUS/Analog Load Sharing Manual 02879 Figure 6-1. Simplified Block Diagram Gain slope and gain breakpoint vary the gain linearly as a function of fuel demand (load). This provides the flexibility to increase or decrease gain as load increases (See Figure 4-3). Gain slope and gain breakpoint are available for both constant and variable dynamics choices.

  • Page 99: Speed Input

    Manual 02879 723PLUS/Analog Load Sharing The control also provides a second complete set of dynamic adjustments which are selected when the 2nd Dynamics or CB Aux (whichever is configured) discrete input is activated. Two sets of dynamics are useful where engine...

  • Page 100: Figure 6-2A. Detailed Block Diagram

    723PLUS/Analog Load Sharing Manual 02879 Figure 6-2a. Detailed Block Diagram Woodward...

  • Page 101: Figure 6-2B. Detailed Block Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure 6-2b. Detailed Block Diagram A Low RPM Speed-Sensing Algorithm is available as a separate part number. This algorithm is specially designed for less than 130 rpm rated engines (MAN B&W, Sulzer, etc.). The speed sensing frequency range of this particular controller is 5 to 976 Hz.

  • Page 102: Torsional Filter Function

    723PLUS/Analog Load Sharing Manual 02879 Torsional Filter Function When the “Use Torsional Filter” is configured FALSE, the speed control selects MPU #1 for use when both speed inputs are valid. Otherwise the valid input with the higher frequency is used.

  • Page 103: Minimum Fuel Function

    Manual 02879 723PLUS/Analog Load Sharing The NOTCH Q FACTOR is the width about the NOTCH FREQUENCY that the filter rejects, and is dimensionless. The Q factor has a tuning range of 0.707 to 25.0. At the minimum value 0.707, there is no attenuation of signal gain at the resonant frequency, and the filter gain equals one.

  • Page 104: Maximum Fuel Function

    723PLUS/Analog Load Sharing Manual 02879 Maximum Fuel Function The Maximum Fuel Function is a software-adjustable maximum fuel limit on the fuel demand. It is used to set a maximum position of the actuator. This is generally used to prevent engine overloading or other situations where the maximum fuel delivered to the engine should be limited.

  • Page 105: Fuel Limiting Function

    Manual 02879 723PLUS/Analog Load Sharing Fuel Limiting Function The Fuel Limiting function prevents an overfuel condition by limiting fuel demand. The External Fuel Limiting Function provides one software adjustable five- breakpoint curve based on an external transmitter signal provided at Signal Input #4.

  • Page 106: Speed Failures

    CFIG OPTION - USE CONT D AS RESET is true, when discrete input D (term 32) contact is closed. An Alarm Reset is also issued when power is applied to the 723PLUS. And finally, the control issues an Alarm Reset during startup (when configured).

  • Page 107: Speed Reference And Ramp Functions

    Manual 02879 723PLUS/Analog Load Sharing Speed Reference and Ramp Functions This section describes the operation of the speed reference and ramp functions and their relation to each other. Read this section carefully to be sure your sequencing provides the proper operating modes.

  • Page 108: Load Reference And Ramp Functions

    723PLUS/Analog Load Sharing Manual 02879 If the Remote Reference input or the Modbus AW value is configured, present, and selected when the Idle/Rated contact is closed or during the idle to rated ramp, the speed reference will ramp to the rpm value set by the Remote Reference milliamp input or the Modbus AW value at the raise or lower rate settings.
  • Page 109 Manual 02879 723PLUS/Analog Load Sharing The control provides an unload trip level set point, baseload set point, rated load set point, loading rate, unloading rate, 2nd load rate, and 2nd unload rate for local operation. Loading rate determines the kW per minute increase when the load input is closed.

  • Page 110: Load Control

    723PLUS/Analog Load Sharing Manual 02879 If the Remote Reference input or the Modbus AW value is present and selected when the Baseload contact is closed, the baseload reference will ramp to the kW load value set by the Remote Reference milliamp input or the Modbus AW value at the loading or unloading rate settings.
  • Page 111 Load Sharing is only accurate if the kW Sensor provides an accurate signal to the 723PLUS control, and the values adjusted in the kW Settings menu for Load Gain Voltage, kW Sensor @4ma, and kW Sensor @20ma are correct and no other limiters are affecting the control.
  • Page 112 723PLUS/Analog Load Sharing Manual 02879 Opening the baseload input contact ramps the generator load from base load back into isochronous load sharing. However, opening the load input contact (unload) instead, ramps the generator load from the base load setting to the unload trip level where a breaker trip signal is issued after a tunable time delay.

  • Page 113: Table 6-1. Description Of Discrete Inputs While In Load Control

    Manual 02879 723PLUS/Analog Load Sharing Soft Unloading and Open Generator Breaker Relay Output If the load command discrete input contact is opened (unload) while the breaker (CB AUX) input contact is closed, the generator will soft unload from the present load level to the unload trip level.

  • Page 114: Power System Management Concepts

    723PLUS/Analog Load Sharing Manual 02879 The droop function supplies a feedback path to bias the speed reference. The function of droop is to decrease the speed reference as the load increases. This is done by negatively biasing the output of the speed reference with the droop function.

  • Page 115: Figure 6-7. Paralleling System

    Manual 02879 723PLUS/Analog Load Sharing Figure 6-7. Paralleling System With only one unit on line, the generator picks up the available load and remains at isochronous speed. If other units are on line and the load command discrete input is open, the load will immediately load to the Unload Trip Level setting.

  • Page 116: Figure 6-8. Droop Mode

    723PLUS/Analog Load Sharing Manual 02879 Droop Mode Droop is a decrease in speed or frequency, proportional to load. That is, as the load increases, the speed or frequency decreases, as illustrated in Figure 6-8. This reduction in speed is accomplished with negative feedback. The feedback increases as the system is loaded.

  • Page 117: Figure 6-9. Isochronous Mode

    Manual 02879 723PLUS/Analog Load Sharing Figure 6-9. Isochronous Mode Droop/Isochronous Load Sharing on an Isolated Bus Droop/isochronous load sharing combines the first two modes. All generator sets in the system except one are operated in the droop mode. The one unit not in droop is operated in the isochronous mode.

  • Page 118: Figure 6-10. Droop/Isochronous Load Sharing

    723PLUS/Analog Load Sharing Manual 02879 Figure 6-10. Droop/Isochronous Load Sharing Figure 6-11. Isochronous Load Sharing Figure 6-12. Isochronous Base Load on an Isolated Bus Woodward...

  • Page 119: Power-Up Diagnostics

    Manual 02879 723PLUS/Analog Load Sharing Base Load Base Load for a system paralleled to an infinite bus or utility is the same as base load in an isolated system. The advantage of base loading over droop is that when separating from a utility, there is no frequency change. Simply removing the bias signal on breaking from the utility returns the system to isochronous.

  • Page 120: Chapter 7. Troubleshooting

    The engine must be shut down for all system checks. Control Test and Calibration General Do the following checks on the 723PLUS control. Then verify the functioning of set points and adjustments. Connect the Hand Held Programmer, Control View, or Watch Window to the control in accordance with the instructions in Chapter 4.
  • Page 121 Manual 02879 723PLUS/Analog Load Sharing Select the 1st Dynamics Menu. Verify that all set points are as recorded during installation. Repeat for the other menus. If any differences are found, change the set point(s) to the correct value. Press the “SAVE” key on the Hand Held Programmer or save settings using Control View or Watch Window (refer to “help”...
  • Page 122 723PLUS/Analog Load Sharing Manual 02879 The AI2-SYNCH INPUT value should be equal to the input value. If it isn’t, adjust I/O CALIBRATION - SYNC OFFSET(AI2) until they are about equal. Set the source for +3.0 Vdc on the meter. The AI2-SYNCH INPUT value should be equal to the input value within 0.2 Vdc.

  • Page 123: Conclusion Of Test And Calibration Procedures

    Manual 02879 723PLUS/Analog Load Sharing The AI4-EXT FUEL LIMIT value should be equal to the input value. If it isn’t, adjust I/O CALIBRATION - EXT LIMIT SPAN(AI4) until they are about equal. Repeat steps 2—5 until no adjustments are required.

  • Page 124: Chapter 8. Service Options

    Product Service Options The following factory options are available for servicing Woodward equipment, based on the standard Woodward Product and Service Warranty (5-01-1205) that is in effect at the time the product is purchased from Woodward or the service is performed: •...

  • Page 125: Returning Equipment For Repair

    Returning Equipment for Repair If a control (or any part of an electronic control) is to be returned to Woodward for repair, please contact Woodward in advance to obtain a Return Authorization Number. When shipping the item(s), attach a tag with the following information: •...

  • Page 126: Replacement Parts

    To expedite the repair process, contact Woodward in advance to obtain a Return Authorization Number, and arrange for issue of a purchase order for the item(s) to be repaired. No work can be started until a purchase order is received.

  • Page 127: Engineering Services

    Manual 02879 723PLUS/Analog Load Sharing Engineering Services Woodward Industrial Controls Engineering Services offers the following after- sales support for Woodward products. For these services, you can contact us by telephone, by email, or through the Woodward website. • Technical Support •...

  • Page 128: Technical Assistance

    Type of Fuel (gas, gaseous, steam, etc) Rating Application Control/Governor Information Please list all Woodward governors, actuators, and electronic controls in your system: Woodward Part Number and Revision Letter Control Description or Governor Type Serial Number Woodward Part Number and Revision Letter...

  • Page 129: Appendix A. Serial Communication Port Wiring

    232. The RS-232 connections are shown in Figure A-1. The maximum distance from the master Modbus device to the 723PLUS control is 15 m (50 ft). Figure A-1. 723PLUS RS-232 Connections The RS-422 connections are shown in Figure A-2. The maximum distance from the master Modbus device to the 723PLUS control is 1219 m (4000 ft).

  • Page 130: Figure A-3. 723Plus Rs-485 Connections With Optional Termination

    Manual 02879 The RS-485 connections are shown in Figure A-3. The maximum distance from the master Modbus device to the 723PLUS control is 1219 m (4000 ft). Figure A-3. 723PLUS RS-485 Connections with Optional Termination RS-422 and RS-485 can use a multi-drop set-up where more than one device is connected to a master device.

  • Page 131: Grounding And Shielding

    Manual 02879 723PLUS/Analog Load Sharing Grounding and Shielding The RS-422 specifications state that a ground wire is needed if there is no other ground path between units. The preferred method to do this is to include a separate wire in the cable that connects the circuit grounds together. Connect the shield to earth ground at one point only.

  • Page 132: Appendix B. Linknet I/O Network

    An I/O network consists of the 723PLUS LON #1 channel, which provides independent network trunks of up to 9 I/O modules. The LinkNet I/O modules, or nodes, on each trunk are attached to the 723PLUS via a single twisted-pair wire (see end of this Appendix for correct wiring geometry).

  • Page 133: Figure B-1. Linknet Relay Contacts

    Manual 02879 723PLUS/Analog Load Sharing Scan Rate Less than 7 output modules: (# of I/O modules x 6 + 75) ms typical (# of I/O modules x 6 + 100) ms max 7 or more output modules: (# of I/O modules x 6 + # of output modules x 3 + 55) ms typical...

  • Page 134: Individual I/O Module Specifications

    This address should correspond to the address of the I/O module hardware in the application program. If these rotary switches are set incorrectly, the node will not communicate with the 723PLUS, and a “no message” fault will be annunciated through the application program. If two nodes are set to the same address, an “address”...

  • Page 135: Figure B-2. Outline Drawing Of I/O Module

    Manual 02879 723PLUS/Analog Load Sharing Figure B-2. Outline Drawing of I/O Module Woodward...

  • Page 136: Discrete Input Module

    The state of each discrete input is passed through an optoisolator and an LED to the shift register. In this manner, the LEDs will light when a contact is closed. The module processor receives this information and transmits it through the transceiver to the 723PLUS. Figure B-3. Discrete Input Module Block Diagram Woodward...

  • Page 137: Figure B-4. Discrete Input Module Wiring Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure B-4. Discrete Input Module Wiring Diagram Woodward...

  • Page 138: 4-20 Ma Input Module

    0–5 V signal, and then multiplexed to a voltage-to-frequency converter. The module processor reads the period of this signal and converts it to a count, which it transmits through the transceiver to the 723PLUS. Figure B-5. 4–20 mA Input Module Block Diagram...

  • Page 139: Figure B-6. 4-20 Ma Input Module Wiring Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure B-6. 4–20 mA Input Module Wiring Diagram Woodward...

  • Page 140: Thermocouple Input Module

    Each input is multiplexed to a voltage- to-frequency converter. The module processor reads the period of this signal and converts it to a count, which it transmits through the transceiver to the 723PLUS. Figure B-7. Thermocouple Input Module Block Diagram...

  • Page 141: Figure B-8. Thermocouple Input Module Wiring Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure B-8. Thermocouple Input Module Wiring Diagram Woodward...

  • Page 142: Rtd Input Module

    The module processor reads the period of this signal and converts it to a count, which it transmits through the transceiver to the 723PLUS. Figure B-9. RTD Input Module Block Diagram...

  • Page 143: Figure B-10. Rtd Input Module Wiring Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure B-10. RTD Input Module Wiring Diagram Woodward...

  • Page 144: Relay Output Module

    Output module. The module outputs information through eight 5 A form C relays. The relay output module processor receives information through the transceiver, from the 723PLUS. The node then updates the status of the shift register which updates the relays and a status LED. The second set of relay contacts is input back into the module processor through a shift register, for readback status.

  • Page 145: Figure B-12. Relay Output Module Wiring Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure B-12. Relay Output Module Wiring Diagram Woodward...

  • Page 146: 4-20 Ma Output Module

    Figure B-13 is a block diagram and Figure B-14 is a wiring diagram of the 4–20 mA Output module. The 4–20 mA output module processor receives information through the transceiver, from the 723PLUS. The 4–20 mA output module then updates the status of the D/A converter which outputs voltages to the current drivers.

  • Page 147: Figure B-14. 4-20 Ma Output Module Wiring Diagram

    Manual 02879 723PLUS/Analog Load Sharing Figure B-14. 4–20 mA Output Module Wiring Diagram Woodward...

  • Page 148: Figure B-15A. Troubleshooting Flowchart (1 Of 2)

    723PLUS/Analog Load Sharing Manual 02879 Figure B-15a. Troubleshooting Flowchart (1 of 2) Woodward...

  • Page 149: Figure B-15B. Troubleshooting Flowchart (2 Of 2)

    Manual 02879 723PLUS/Analog Load Sharing Figure B-15b. Troubleshooting Flowchart (2 of 2) Woodward...

  • Page 150: Troubleshooting Flowchart

    For optimum EMC performance, the network cable shield should be landed at each I/O module, and the exposed wire length limited to 25 mm (1 inch). At the 723PLUS, the outer insulation should be stripped and the bare shield landed to the chassis.

  • Page 151: Cable Length And Number Of Linknet I/O Modules

    Manual 02879 723PLUS/Analog Load Sharing Correct cable is available from Woodward, Belden, or other suppliers providing an equivalent cable. Woodward part number 2008-349 Belden PO Box 1980 Richmond IN 47375 telephone (317) 983-5200 Belden Part Number Description 9207 PVC 20 AWG shielded. NEC Type CL2, CSA Cert. PCC FT 1.

  • Page 152: Appendix C. Modbus Slave Address Information

    723PLUS/Analog Load Sharing Manual 02879 Appendix C. Modbus Slave Address Information Part Numbers 8280-414/-415/-480/-481 This appendix contains the Modbus slave address information for these 723PLUS part numbers. MODBUS PORT3 Boolean Writes Addr Description 0:0001 ALARM RESET 0:0002 0:0003 0:0004 0:0005...
  • Page 153 Manual 02879 723PLUS/Analog Load Sharing 1:0013 MPU 1 FAILED 1:0014 MPU 2 FAILED 1:0015 KW SENSOR INPUT FAILED 1:0016 1:0017 REMOTE LOAD REF FAILED 1:0018 EXTERNAL FUEL LIMIT FAILED 1:0019 HANDHELD SELECTED 1:0020 LAPTOP SELECTED 1:0021 SHUTDOWN IS ACTIVE 1:0022...
  • Page 154 723PLUS/Analog Load Sharing Manual 02879 1:0087 1:0088 1:0089 1:0090 1:0091 1:0092 1:0093 1:0094 1:0095 1:0096 1:0097 1:0098 1:0099 1:0100 1:0101 SPEED IN CONTROL (LSS) 1:0102 ON START LIMIT (LSS) 1:0103 ON MAX LIMIT (LSS) 1:0104 ON EXT FUEL LIMIT (LSS)
  • Page 155 Manual 02879 723PLUS/Analog Load Sharing 3:0021 3:0022 3:0023 3:0024 3:0025 3:0026 3:0027 3:0028 3:0029 3:0030 3:0031 FUEL DEMAND (%fd * 10) 3:0032 TORSIONAL LIMIT LEVEL(%fd) 3:0033 TORSIONAL LEVEL(%RATED RPM) 3:0034 EXT FUEL LIMIT(%fd) 3:0035 BASE LOAD REFERENCE(kw) 3:0036 LOAD REFERENCE(kw)
  • Page 156 723PLUS/Analog Load Sharing Manual 02879 3:0095 AI 1 CHANNEL 5 (uA) 3:0096 AI 1 CHANNEL 6 (uA) Analog Writes Addr Description 4:0001 4:0002 723 ANALOG OUTPUT #1 4:0003 723 ANALOG OUTPUT #2 4:0004 723 ANALOG OUTPUT #4 4:0005 723 REMOTE REFERENCE...

  • Page 157: Appendix D. Programming Checklist

    Manual 02879 723PLUS/Analog Load Sharing Appendix D. Programming Checklist We recommend you write down the final value of each menu item here so you will have a record if you later need to reprogram or replace the control. From the hand held Main Menu Header press ‘ID’, or from Watch Window or the STD PC interface, select “Help About”...
  • Page 158 723PLUS/Analog Load Sharing Manual 02879 CFIG SHUTDOWN Default SPEED #1 FAIL #FALSE SPEED #2 FAIL #FALSE SPD #1AND#2 FAIL #FALSE KW IN FAIL #FALSE REMOTE INPUT FAIL #FALSE EXT FUEL LIMIT FAIL #FALSE MODBUS PORT3 FAIL #FALSE HI FUEL DEMND LEVEL...
  • Page 159 Manual 02879 723PLUS/Analog Load Sharing ALARM SETUP Default (Low, High) HI FUEL DEMND SETPT(%FD) #100.0 (0.0, 100.0) HI FUEL DEMND DELAY(SEC) #10.0 (0.0, 10800.0) HI SPEED SETPOINT (RPM) #1320.0 (0.0, 2500.0) HI SPEED DELAY(SEC) #0.2 (0.0, 10800.0) TORSION LEVEL SETPT(%RPM) #50.0 (0.0, 100.0)

  • Page 160: Figure 4-5. Speed Filter

    723PLUS/Analog Load Sharing Manual 02879 ALARM MENU Default FIRST ALARM 1-SPEED #1FAIL 2-SPEED #2 FAIL 3-SPD #1AND#2 FAIL 4-KW INPUT FAIL 5-REMOTE INPUT FAIL 6-EXT FUEL LMT FAIL 7-MODBUS PORT3 FAIL 8-HIGH FUEL DEMAND 9-HIGH SPEED 10-HIGH TORSIONAL 11-HIGH KW...
  • Page 161 Manual 02879 723PLUS/Analog Load Sharing 2nd DYNAMICS-5 GAIN Default (Low, High) BREAKPOINT 2A (%FD) *99.6 (0.00, 100.0) GAIN @BREAKPOINT 2A *10.0 (0.0015, 1000.0) BREAKPOINT 2B (%FD) *99.7 (0.00, 100.0) GAIN @BREAKPOINT 2B *10.0 (0.0015, 1000.0) BREAKPOINT 2C (%FD) *99.8 (0.00, 100.0) GAIN @BREAKPOINT 2C *10.0 (0.0015, 1000.0)
  • Page 162 723PLUS/Analog Load Sharing Manual 02879 KW SETTING Default (Low, High) LOAD DROOP PERCENT *0.0 (0.0, 10.0) FUEL DEMAND @MIN LD(%FD) *27.0 (0.0, 100.0) FUEL DEMAND @MAX LD(%FD) *73.0 (0.0, 100.0) RATED LOAD(KW) *1000 (1, 16384) LOAD GAIN VOLTAGE *6.0 (3.0, 7.0)
  • Page 163 Manual 02879 723PLUS/Analog Load Sharing I/O CALIBRATION Default (Low, High) KW IN OFFSET(AI1) *0.0 (-20.0, 20.0) KW INPUT SPAN(AI1) *100.0 (50.0, 200.0) KW READ VOLTS (AI1) *FALSE SYNC OFFSET(AI2) *0.0 (-5000.0, 5000.0) REM IN OFFSET(AI3) *0.0 (-20.0, 20.0) REM IN SPAN(AI3) *100.0 (50.0, 200.0)
  • Page 164 723PLUS/Analog Load Sharing Manual 02879 TC MODULE 2 Default (Low, High) CH1 - TC DEGREES F CH2 - TC DEGREES F CH3 - TC DEGREES F CH4 - TC DEGREES F CH5 - TC DEGREES F CH6 - TC DEGREES F CH1 - TC OFFSET *0.0 (-500.0, 500.0)
  • Page 165 Manual 02879 723PLUS/Analog Load Sharing TC MODULE 4 Default (Low, High) CH1 - TC DEGREES F CH2 - TC DEGREES F CH3 - TC DEGREES F CH4 - TC DEGREES F CH5 - TC DEGREES F CH6 - TC DEGREES F CH1 - TC OFFSET *0.0 (-500.0, 500.0)
  • Page 166 723PLUS/Analog Load Sharing Manual 02879 AI MODULE 1 Default (Low, High) AI1 CH1 - mA INPUT AI1 CH2 - mA INPUT AI1 CH3 - mA INPUT AI1 CH4 - mA INPUT AI1 CH5 - mA INPUT AI1 CH6 - mA INPUT AI1 CH1 - AI OFFSET *0.0 (-20.0, 20.0)
  • Page 167 Manual 02879 723PLUS/Analog Load Sharing AO MODULE 1 Default (Low, High) AO1 CH1 mA OUT AO1 CH2 mA OUT AO1 CH3 mA OUT AO1 CH4 mA OUT AO1 CH5 mA OUT AO1 CH6 mA OUT AO1 CH1 - OFFSET *0.0 (-20.0, 20.0) AO1 CH1 - SPAN *100.0 (50.0, 200.0)
  • Page 168 723PLUS/Analog Load Sharing Manual 02879 LOAD CONTROL MODE Display Only FD DROOP CONTROL KW DROOP CONTROL KW ISOCH LS CONTROL FD ISOCH LS CONTROL ISOCH LOADSHARING LOAD RAMP CONTROL BASE LOAD CONTROL REMOTE LOAD ENABLED UNLOADED LSS CONTROL MODE Display Only...
  • Page 169 Manual 02879 723PLUS/Analog Load Sharing FORCE DO 1 Default DO1 CH1 FORCE *FALSE DO1 CH2 FORCE *FALSE DO1 CH3 FORCE *FALSE DO1 CH4 FORCE *FALSE DO1 CH5 FORCE *FALSE DO1 CH6 FORCE *FALSE DO1 CH7 FORCE *FALSE DO1 CH8 FORCE...

  • Page 170: Appendix E. Menu Summary

    723PLUS/Analog Load Sharing Manual 02879 Appendix E. Menu Summary Configure Menus CFIG OPTION CFIG ALARM USE REV ACTUATOR SPEED #1 FAIL USE 2nd DYNAMICS SPEED #2 FAIL USE 5-GAIN MAP SPD #1AND #2 FAIL USE CONST DYNAMICS KW IN FAIL...

  • Page 171: Service Menus

    Manual 02879 723PLUS/Analog Load Sharing Service Menus SHUTDOWN MENU 2nd DYNAMICS–5 GAIN EXT FUEL LMT CURVE FIRST SHUTDOWN BREAKPOINT 2A (%FD) ENABLE EXT FUEL LMT 1-SPEED #1FAIL GAIN @ BREAKPOINT 2A EXT LIMIT BRKPNT A (EU) 2-SPEED #2 FAIL BREAKPOINT 2B (%FD)
  • Page 172 723PLUS/Analog Load Sharing Manual 02879 TC MODULE 1 TC MODULE 4 DI MODULE 1 CH 1 - TC DEGREES F CH 1 - TC DEGREES F CH01 CONTACT CLOSED CH 2 - TC DEGREES F CH 2 - TC DEGREES F...
  • Page 173 Manual 02879 723PLUS/Analog Load Sharing DISPLAY DIGITAL I/O DISPLAY MENU A-CB AUX CONTACT ENGINE SPEED (RPM) B-BASE LOAD BIASED SPD REF (RPM) C-LOAD GENERATOR FUEL DEMAND (%) D-2ND DYNAMICS SPEED REF (RPM) E-RAISE SPD/LOAD LOAD BIAS (RPM) F-LOWER SPD/LOAD DROOP BIAS (RPM)

  • Page 175: 723Plus Control Specifications

    723PLUS Control Specifications Woodward Part Numbers: 8280-414 723PLUS with low-voltage power supply 8280-415 723PLUS with high-voltage power supply 8280-480 723PLUS Low Speed with low-voltage power supply 8280-481 723PLUS Low Speed with high-voltage power supply 9907-205 Hand Held Programmer 8923-932 Watch Window Installation...
  • Page 176 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.

Table of Contents

Save PDF