Entering Control Set Points (Chapter 4) Part 2 - WOODWARD 2301D Load Sharing and Speed Control

Entering Control Set Points (Chapter 4) Part 2

Follow these steps to save and reload the variables from the control:
Step 1:
Servlink and Watch Windows must be open to upload or save the variables to your computer. Click on the “Save Application Settings” icon


Step 2:
The software will ask you where to save the application settings file. The file extension is .cfgStep 3:
Step 3:
The software will ask you where to save the application settings file. The file extension is .cfg. This process can be executed even while the engine is running. It will not interrupt the 2301D. A progress bar will show you when the upload is finished. It should only take about 10-20 seconds.



Step 4:
To download the configure file (.cfg) back into a control, the engine must be shutdown. Servlink and Watch Windows must be running. Click on the “Load Application Settings” icon

The software will then tell you that the control is going to be put into an I/O Lock. This will open up all of the inputs and outputs. Make sure that your engine is shutdown. Click on Yes to continue.


Step 5:
The software will then ask you where you saved your .cfg file. Select the file that you saved and click on the Open button.


Step 6:
The download will begin and a progress bar will appear. This should only take about 5-10 seconds.


Step 7:
Once the download is finished, a confirmation window will appear. By clicking on the Yes button, the control will reboot.



Step 8:
Verify the settings in the control. This is important to make sure that you downloaded the correct Configure File (.cfg), and to make sure that the most critical settings were loaded.


Read More:
Entering Control Set Points (Chapter 4) Part 1 - WOODWARD 2301D Load Sharing and Speed Control
Description of Operation (Chapter 3) Part 2 - WOODWARD 2301D Load Sharing and Speed Control
Description of Operation (Chapter 3) Part 1 - WOODWARD 2301D Load Sharing and Speed Control
Installation (Chapter 2) Part 2 - WOODWARD 2301D Load Sharing and Speed Control
Installation (Chapter 2) Part 1 - WOODWARD 2301D Load Sharing and Speed Control
Entering Control Set Points (Chapter 4) Part 3 - WOODWARD 2301D Load Sharing and Speed Control



Entering the Configure Mode
To enter into the Configure Mode, click on the “Lock I/O” icon. The Engine must be shutdown before performing this operation, as the inputs and outputs of the control all go to zero.



Configure Menu Descriptions 

A**SPEED CONTROL FUNCTIONS**
01 ENTER RATED SPEED (RPM) dflt = 900 (0, 4000)
Set to the rated synchronous rpm of the engine/generator. This will typically be a value from the following table:

This value is used to set the 2301D, 2301D-EC speed sensor hardware to software conversion. The rated speed can be varied in Service for testing. If a rated speed other than values listed here is entered, the calculated generator frequency shown in **DISPLAY MENU** may not be correct.

02 USE START SPEED dflt = FALSE (TRUE, FALSE)
Set to TRUE to enable a tunable Start Speed Reference. Set to FALSE to disable the Start Speed Reference. This is typically only used on gas engines to allow speed control below idle speed and to allow acceleration to the Start Fuel Limiter without over-fueling.

03 ENABLE 5 SLOPE GAIN MAP dflt = FALSE (TRUE, FALSE)
Set to TRUE to permit the use of a 5-gain curve for setting the control gain as a function of engine load. If “Use 2nd Dynamics” is also set TRUE, the use of a second 5-gain curve is activated. These two curves each provide 5 tunable gain settings at 5 tunable load-dependent breakpoints. If ‘Enable 5 Slope Gain Map’ is set FALSE only a single gain value is used as the dynamic adjustment.

04 SEL GAIN FUNCTION dflt = 1 (1, 3)
Set this value for the appropriate function:
-Set to “1” to make the slope breakpoints dependent on percent engine fuel demand (Actuator %). This is the typical value.
-Set to “2” to select the 5-slope gain map load axis to be based on percent generator load (%).
-Set to 3 for non-generator applications and where the dynamic slope gain map should be dependent on the engine speed.

05 DISPLAY GAIN FUNCTION (monitor)
This menu item displays the gain value selected in the previous menu: Actuator %, Load % or Engine Speed.

06 ENABLE IDLE DROOP dflt = FALSE (TRUE, FALSE)
Idle Droop is used when an engine is unloaded quickly or is operated at a very low idle speed. Idle Droop is based on the controls output current. When the current drops below the “Idle Breakpoint” setting or goes to minimum fuel during rapid deceleration, the Idle Droop will increase the speed reference to allow the engine to come under control quicker, and reduces speed undershoot. This is
typically used for marine or variable-speed applications.

07 OVERSPEED SETTING dflt = 2000.00 (0.00, 4000)
Set this for the maximum speed that the engine will see, typically 115% of rated speed. The 2301D, 2301D-EC initiates a shutdown when the engine speed reaches this level.

08 RST TO RATED AT CB CLOSE dflt = TRUE (TRUE, FALSE)
This value when set to True will reset the speed bias to rated, after the circuit breaker is closed. If set to False, the speed could have a small error in it due to the speed bias.

09 RST TO RATED INSTANT dflt = TRUE (TRUE, FALSE)
This value when set to True will reset the speed bias to rated instantly, after the circuit breaker is closed. If set to False, the ramp rate to rated is slower.

10 ENABLE AUTO IDLE/RATED dflt = FALSE (TRUE, FALSE)
An automatic idle to rated switch which activates rated after idle is reached and a certain time has expired. Tunable in service mode.

11 REMOTE SPD LOCK IN LAST dflt = FALSE (TRUE, FALSE)
This value when set to True will lock in the last value of remote speed, if the analog input drops below or raises above the low threshold for that input type. The value will also lock if the communications fails, if using Modbus commands. An alarm will trigger, if activated. A Reset is required to reset the failed input. When this value is set to False, the speed will ramp down to the Lower Speed Limit on the event of a failed analog input.

12 REMOTE LOAD LOCK IN LAST dflt = FALSE (TRUE, FALSE)
This value when set to True will lock in the last value of remote load, if the analog input drops below or raises above the low threshold for that input type. The value will also lock if the communications fails, if using Modbus commands. An alarm will trigger, if activated. A Reset is required to reset the failed input. When this value is set to False, the load will ramp down to the Baseload Minimum setting on the event of a failed analog input.

13 RESET RATED REF ON SD? dflt = TRUE (TRUE, FALSE)
This value when set to True will instantly reset the speed reference back to the Rated Speed Reference on an engine shutdown.

B**ENG—GEN CNTRL FUNCTIONS**
01 ENTER NUM OF GEAR TEETH dflt = 60 (8, 500)
This is the number of teeth or holes of the gear or flywheel that the speed sensor is on. If the gear is on the cam shaft or other drive not turning at the prime mover speed, the number of teeth needs to be adjusted to compensate. EXAMPLE: If the gear is rotating at one-half the engine speed enter one-half the number of actual teeth.
IMPORTANT: The maximum input frequency that can be measured by the speed sensing circuit is 25 000 Hz. Therefore to allow for transient conditions, the (Number of Teeth x Rated rpm) / 60 should be less than 19 000.

02 SPD SENSE TYPE (1, 4, 5) dflt = 5 (1, 4, 5)
This input determines speed calculation where:
-Speed Sensor Function 1 is used for medium and high speed engines. Typically use this speed sensing type for MPU frequencies of 1000 Hz. and above. The MPU gear is divided into 16 pieces, therefore the speed is sensed and updated once every 1/16th of a full engine revolution.
-Speed Sensor Functions 2 and 3 are not used. Do not use these values!
-Speed Sensor Function 4. The speed is sensed on every timing pulse. This function is specifically designed to give readings at low speeds. Speed is calculated by using only two inter-tooth time intervals. This function measures the time between each tooth and stores the two most recent
measurements. This block samples and averages these two measurements each time the block executes and uses the average to calculate speed.

Speed Sensor Function 5 is specifically designed with an adaptive rotational speed sensing filter. This filter will give stable speed sensor readings for:
-Low and medium engine speeds.
-Engine torsional frequencies caused by engine firing frequencies, or various engine loads.
-Noisy MPU signals caused by runout in the gear, irregular shaped gear teeth or irregular shaped holes in the flywheel. Start the engine using Speed Sensor Function 5. This value should give adequate performance for most applications.

Speed Function 5 is also used with the following menu items:
o Configure Menu B**ENG—GEN CNTRL FUNCTIONS** 03 ENTER
NUMB OF CYLINDERS.
o Service Menu X**ADAPTIVE FILTER SET** 01 ADAPTIVE FILTER
ENABLE.
o Service Menu X**ADAPTIVE FILTER SET** 02 ADAPTIVE FILTER
GAIN.

03 ENTER NUMB OF CYLINDERS dflt = 8 (1.0, 24.0)
This is the number of cylinders the engine has, and is also the number of speed samples the control will take during each engine revolution. This is only used with Speed Sensor Function 5.

04 ENTER FAILED SPD SENSE % dflt = 5 (2.0, 50.0)
This should be set to a percentage of rated prime mover speed that will verify a valid MPU signal exists while the prime mover is starting. (Default is 5% of rated).

05 MPU ALARM ARM TIME dflt = 10 (0.0, 120.0)
This value is the time delay, in seconds, to wait before latching the MPU failure alarm and shutdown functions once a valid MPU signal is detected. Opening the “RUN” contact resets the latch block to prevent MPU failure alarm and shutdown conditions from occurring with normal stops.

06 ENTER RATED/MAX LOAD (KW) dflt = 500 (10, 30000)
This is the maximum generator load (in kilowatts).

07 GRID FREQ IS 50 HZ dflt = FALSE (TRUE, FALSE)
If set FALSE, 60 Hz is selected as the generator frequency.

08 2 CYCLE OR 4 CYCLE? dflt = 1 (1, 2)
This value is the number of revolutions per engine cycle. Set this value to 1 for a two-cycle engine, and 2 for a four-cycle engine.

09 MAX ENGINE SPEED PERCENT dflt = 120 (30, 400)
This value is the maximum speed percentage that engine will run from the rated speed percentage. This value is typically used for variable speed applications. EXAMPLE: With this value raised, the engine speed can be controlled from 900 to 3600 rpm.


Read More:
Plant Wiring Diagram - 2301D Load Sharing and Speed Control
General Information (Chapter 1) - WOODWARD 2301D Load Sharing and Speed Control




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