Woodward DPG-2223-00 Series User manual

Technical Manual 36522
(Revision G)
Original Instructions
DPG-2223-00X
Digital Controllers
Programmable Controllers
for Isochronous Generators with
Load Sharing Capability
Installation and Operation Manual

DEFINITIONS
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
•thDANGER—Indicates a hazardous situation which, if not avoided, will result in dea
or serious injury.
•WARNING—Indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
•CAUTION—Indicates a hazardous situation which, if not avoided, could result in
minor or moderate injury.
•NOTICE—Indicates a hazard that could result in property damage only (including
damage to the control).
•IMPORTANT—Designates an operating tip or maintenance suggestion.
The engine, turbine, or other type of prime mover should be equipped with an
overspeed shutdown device to protect against runaway or damage to the prime
mover with possible personal injury, loss of life, or property damage.
The overspeed shutdown device must be totally independent of the prime mover
control system. An overtemperature or overpressure shutdown device may also
be needed for safety, as appropriate.
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.
This publication may have been revised or updated since this copy was produced. To verify that
you have the latest revision, be sure to check the Woodward website:
www.woodward.com/pubs/current.pdf
The revision level is shown at the bottom of the front cover after the publication number. The latest
version of most publications is available at:
www.woodward.com/publications
If your publication is not there, please contact your customer service representative to get the
latest copy.
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.
To prevent damage to a control system that uses an alternator or batter
y
-charging
device, make sure the charging device is turned off before disconnecting the battery
from the system.
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.
Revisions—Text changes are indicated by a black line alongside the text.
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.
© Woodward 2010
All Rights Reserved

Manual 36522G DPG-2223-00X Controllers
Woodward i
Contents
ELECTROSTATIC DISCHARGE AWARENESS ..................................................V
CHAPTER 1. GENERAL INFORMATION...........................................................1
Introduction.............................................................................................................1
CHAPTER 2CONTROLLER SPECIFICATIONS .................................................2
User Interface Operation........................................................................................3
Operating Modes....................................................................................................3
Keypad....................................................................................................................5
LED Display............................................................................................................6
CHAPTER 3PARAMETER REFERENCE..........................................................8
Parameter List........................................................................................................9
3.1 No. of Flywheel Teeth (optional)............................................................10
3.2 Remote Speed Min (optional)................................................................11
3.3 Remote Speed Max (optional)...............................................................11
3.4 Set Speed A (required)..........................................................................11
3.5 Idle Speed (optional)..............................................................................11
3.6 Proportional (required)...........................................................................12
3.7 Integral (required)..................................................................................12
3.8 Derivative (required)..............................................................................13
3.9 OVG @ Remote Speed Min (optional)..................................................13
3.10 OVG @ Remote Speed Max (optional)...............................................13
3.11 OVG @ Set Speed A (required)..........................................................13
3.12 OVG @ Idle Speed (optional)..............................................................13
3.13 Gain Factor (required) .........................................................................14
3.14 Speed Filter (required).........................................................................14
3.15 Idle Hold Time (optional) .....................................................................14
3.16 Accel Rate (optional) ...........................................................................15
3.17 Decel Rate (optional)...........................................................................15
3.18 Startup Rate (optional) ........................................................................15
3.19 Startup Limit (optional) ........................................................................16
3.20 Torque Limit (optional).........................................................................16
3.21 Integral Low Limit (optional) ................................................................17
3.22 Integral High Limit (optional)................................................................17
3.23 Percent Droop (optional) .....................................................................18
3.24 No Load Calibration (optional).............................................................18
3.25 Full Load Calibration (optional)............................................................18
3.26 Password (optional).............................................................................19
3.27 Over Speed Limit (optional).................................................................19
3.28 Set Speed A Min (optional)..................................................................20
3.29 Set Speed A Max (optional).................................................................20
3.30 Idle Speed Min (optional).....................................................................20
3.31 Idle Speed Max (optional)....................................................................20
3.32 Duty Cycle Limit (optional)...................................................................21
3.33 E1 Handler Select (optional)................................................................21
3.34 Startup Speed (required).....................................................................21
3.35 Startup Duty Cycle (optional)...............................................................22
3.36 Speed Pot Action (optional).................................................................23

DPG-2223-00X Controllers Manual 36522G
ii Woodward
Contents (cont'd.)
CHAPTER 4. UNIVERSAL PST.....................................................................24
Introduction...........................................................................................................24
Features................................................................................................................24
System Requirements ..........................................................................................24
Acquiring Universal PST.......................................................................................25
Installing Universal PST .......................................................................................26
CHAPTER 5. CALIBRATION INSTRUCTIONS..................................................33
Basic Adjustments................................................................................................33
Tuning Methodology.............................................................................................33
Droop Calibration Procedure................................................................................35
Remote Speed Potentiometer Calibration Procedure..........................................36
Startup Sequence.................................................................................................37
CHAPTER 6. INSTALLATION INSTRUCTIONS.................................................38
Terminal Descriptions...........................................................................................38
Wiring Diagram.....................................................................................................39
Centralized Suppression ......................................................................................40
CHAPTER 7. DIAGNOSTICS &TROUBLESHOOTING ......................................42
Display Codes.......................................................................................................42
Troubleshooting Table..........................................................................................43
CHAPTER 8. SERVICE OPTIONS..................................................................45
Product Service Options.......................................................................................45
Woodward Factory Servicing Options..................................................................46
Returning Equipment for Repair...........................................................................46
Packing a Control .........................................................................................47
Replacement Parts...............................................................................................47
Engineering Services............................................................................................47
How to Contact Woodward...................................................................................48
Technical Assistance............................................................................................48
Illustrations
Figure 1. Wiring Diagram for DPG-2223-00X Models..........................................39
Figure 2. Centralized Suppression Implemented at the System Level ................41

Manual 36522G DPG-2223-00X Controllers
Regulatory Compliance
Declaration of Conformity
Woodward iii

DPG-2223-00X Controllers Manual 36522G
iv Woodward
EMC Limitations
Cabling
All cabling for this unit is limited to less than 30m (98.4’). See wiring diagrams for
specific cable types required.
Power cabling is limited to less than 10m (32.8’) in total length from its source;
power is intended to be from a local bus structure. The control is NOT intended
to have a power bus that is derived from a plant-wide distribution system, remote
source, or similar “mains” type distribution systems. The power to the control
should also be a dedicated circuit, directly to the battery or source via a power
and return wire that are routed together.
See User Manual 36526 for additional regulatory information, limitations, and
wiring diagrams with specific, required cable types.
Power Bus
The power bus is intended to be a local bus without power line surges and to
have inductive load kickback events suppressed. Therefore, the control’s power
input is not designed to withstand a charging system load dump, heavy inductive
kickbacks, or heavy surge type pulses. If the control is installed outside its
intended usage, as described in this manual, centralized voltage pulse
suppression should be implemented to help protect the control and other
components on the bus. (See Chapter 6: Installation Instructions.)
COMM Port
The COMM port is intended to be a service port, with only temporary connection
during service or initial configuration. The COMM port is susceptible to some
EMC phenomena and possible unintentional battery return currents.
1. Battery return (B-) is also the communication signal common; typically
PCs connect the communication signal’s common to protective earth.
The PC grounding can provide an unintended return path for B- currents.
If B- and the PC are grounded to protective earth, a communication
isolator should be used between the PC and the control. Damage to the
PC or control, and/or unintended operation may result from a broken
battery return wire or the parallel path.
2. The pins inside the COMM port plug are susceptible to damage by ESD
discharges, static electricity arcs. Care should be taken not to touch
them with tools or put fingers into the port. Always touch your hand or
tool to a grounded piece of metal (discharge ESD) prior to coming in
contact with the communication port.
3. The input is susceptible to RF noise such as switching transients and
transmitter signals coupled into the communication cable. Cable
orientation and short cable length may be used to eliminate these issues,
depending on the severity of the environment.

Manual 36522G DPG-2223-00X Controllers
Electrostatic Discharge Awareness
All electronic equipment is static-sensitive, some components more than others.
To protect these components from static damage, you must take special
precautions to minimize or eliminate electrostatic discharges.
Follow these precautions when working with or near the control.
1. Before doing maintenance on the electronic control, discharge the static
electricity on your body to ground by touching and holding a grounded metal
object (pipes, cabinets, equipment, etc.).
2. Avoid the build-up of static electricity on your body by not wearing clothing
made of synthetic materials. Wear cotton or cotton-blend materials as much
as possible because these do not store static electric charges as much as
synthetics.
3. Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam
cups, cup holders, cigarette packages, cellophane wrappers, vinyl books or
folders, plastic bottles, and plastic ash trays) away from the control, the
modules, and the work area as much as possible.
4. Do not remove the printed circuit board (PCB) from the control cabinet
unless absolutely necessary. If you must remove the PCB from the control
cabinet, follow these precautions:
•Do not touch any part of the PCB except the edges.
•Do not touch the electrical conductors, the connectors, or the
components with conductive devices or with your hands.
•When replacing a PCB, keep the new PCB in the plastic antistatic
protective bag it comes in until you are ready to install it. Immediately
after removing the old PCB from the control cabinet, place it in the
antistatic protective bag.
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 v

Manual 36522G DPG-2223-00X Controllers
Woodward 1
Chapter 1.
General Information
Introduction
This manual provides information on the following DPG controllers:
DPG-2223-001 and DPG-2223-002.
The DPG-2223-00X digital controller is used primarily to govern diesel or gas
fueled engines of generator sets. This microprocessor-based, digital controller
performs across a wide speed range and allows adjustment of all controller
features through the built-in user interface. Properly tuned, this controller delivers
fast engine response to speed or load change while providing precise stable
isochronous operation.
Separately programmable Proportional, Integral, and Derivative gains are
provided for tailoring controller response to many engine applications. Other
adjustments include acceleration and deceleration ramp rates, startup and torque
limits, idle speed set, and idle hold time.
The controller can also provide droop speed control with 100 user-selectable
droop levels. The controller’s internal FAILSAFE reacts instantly to loss of the
engine speed signal or loss of remote speed potentiometer signal.
Features include:
•Automatic calibration of the remote speed potentiometer
•Isochronous speed control
•Droop operation: 0 to 10% of set speed with 1/10 percent resolution
•User friendly / operator adjustable
•Precision frequency control: 0.25%
•Superior temperature stability
•Reverse battery protection
•Input voltage range: 9–30 Vdc
•Smoke control on start up
•Remote setup
•Serial communication port
Actuator Compatibility:
DYNA 2000 DYNA 70000 DYNA 8000 APECS 0150 EPG 512
DYNA 2500 DYNA 70025 DYNA 8200 APECS 0250 EPG 1724
DYNA 10141 DYNA 8400 APECS 0300
APECS Linkage Free Integral Type
Other Models Available:
DPG-2100 Series – for Genset Applications
DPG-2200 Series – for Genset Applications
DPG-2300 Series – for Off-Road Vehicles
DPG-2400 Series – for EFC Valve Applications

DPG-2223-00X Controllers Manual 36522G
2 Woodward
Chapter 2
Controller Specifications
The controller’s main electrical and mechanical specifications are
listed below along with several performance characteristics.
Electrical
Operating Voltage Range: 9–30 Vdc *
Rated Output Current: 7 A Maximum (continuous)
Maximum Surge Current: 14 A (not to exceed ten seconds)
Connections: Terminal strip with 14 terminals
Input Signal from the Magnetic Pickup: 2.0 VAC RMS minimum during
cranking
(*) All cabling for this unit is limited to less than 30m (98.4’). Power
cabling is limited to less than 10m (32.8’) in total length. See wiring
diagrams for specific cable types required.
Mechanical
Ambient
Operating Temperature: -40°F to +185°F (-40°C to +85°C)
Sealing: Oil, water, and dust resistant via conformal coating and die cast
enclosure
Weight: 12 oz. (341 g)
Connection: 14-terminal Euro-style connector
Mechanical Vibration Suitable for mounting per SAE
J1455; 1 to 500 Hz, 5G amplitude
Performance
Temperature Stability: 0.007 Hz @ 158°F (70°C)
Steady State Speed Band: ± 0.25% over ambient operating
temperature range
Engine Speed
Measurement Range: 10 MPU Hertz to 14,000 MPU
Hertz
Governing Speed Range: 500 MPU Hertz to 11,000 MPU
Hertz
ILS Input Voltage
Measurement Range: 2.3–2.7 Vdc
ILS Input Speed
Adjustment Range: ± 5% around the set speed
Droop Adjustment Range: 0–10% of the set speed
Droop Setting Resolution: Tenths of a percent

Manual 36522G DPG-2223-00X Controllers
Woodward 3
User Interface Operation
The user interface has two distinct behaviors that you should familiarize yourself
with in order to select parameters and adjust them. These behaviors are
described in the Operating Modes section below.
A 4-pushbutton keypad and a 2-digit LED display make up the built-in user
interface. The pushbuttons, also called keys, are described in the section named
Keypad. The LED display is described in the section named LED Display.
Remote access to the controller’s parameter settings is available when the
controller’s COMM port is connected to a computer running our Universal PST
application. The COMM port provides access to controller settings, allowing
adaptation to each application during service and initial configuration.
Operating Modes
The user interface operates in two modes: PARAMETER SELECT MODE and
PARAMETER EDIT MODE. For each of these modes, the keypad and the
display have a unique way of operating.
The following tables provide a quick reference to the behavior of the display and
the function of each key when a particular operating mode is active.
PARAMETER SELECT MODE is the mode used to select a parameter for
viewing and editing. This mode is active when the 2-digit value being displayed is
blinking. The value displayed is a parameter’s identification (ID) number. The
controller’s label lists each user-adjustable parameter and its corresponding ID
number.
PARAMETER SELECT MODE
LED Display The ID number of a parameter listed on the
controller’s label is blinking on and off.
INC key Increase the parameter ID number by one.
DEC key Decrease the parameter ID number by one.
SELECT key Activate PARAMETER EDIT MODE on the
parameter whose number was blinking.
ENTER Display the version number of the
controller’s programming.
INC & DEC
Simultaneously Turn on all LED segments as a test.

DPG-2223-00X Controllers Manual 36522G
PARAMETER EDIT MODE is the mode that displays the selected parameter’s
value and allows the value to be modified. This mode is active when the 2-digit
value displayed is on and no longer blinking. The value displayed is the selected
parameter’s current value. The display’s decimal points have several different
meanings while in PARAMETER EDIT MODE. These are described below.
•Decimal point blinking
T
he selected parameter’s value can be modified.
NOTICE: Not applicable for the following parameters:
oNo. of Flywheel Teeth, while engine is running
4 Woodward
o% Droop
oNo Load Calibration
oFull Load Calibration while not in Droop calibration procedure
•Decimal point not blinking
The selected parameter’s value cannot be modified; parameter
editing is locked and values can only be viewed. This is the case
when password protection is active and the unlock code has not
been entered. Read about the Password parameter in the Parameter
Reference chapter for more information about using password
protection.
•Right digit’s decimal point is blinking or ON
The lower two digits (the tens digit and the ones digit) of a
parameter’s 4-digit value are being displayed.
•Left digit’s decimal point is ON
The upper two digits (the thousands digit and the hundreds digit) of a
parameter’s 4-digit value are being displayed. The upper two digits of
a parameter are always view only and can never be modified
directly. The upper two digits change when the lower digits overflow
(transition from 99 to 00) or underflow (transition from 00 to 99).
PARAMETER EDIT MODE
LED Display
The value of the selected parameter is
displayed. A blinking decimal point means
the value can be modified; otherwise, the
value is view only.
INC key Increase the selected parameter’s value.
DEC key Decrease the selected parameter’s value.
SELECT key Return to PARAMETER SELECT MODE
and ignore changes made to the
parameter’s value.
ENTER Save the parameter’s new value, and
return to PARAMETER SELECT MODE.
INC & DEC
Simultaneously Use to display the upper digits of values
larger than 99.

Manual 36522G DPG-2223-00X Controllers
Woodward 5
Keypad
The keypad consists of four pushbuttons named ENTER, SELECT, INC, and
DEC.
ENTER Key
The ENTER key is used to exit PARAMETER EDIT MODE and return to
PARAMETER SELECT MODE while saving the parameter’s new value to
nonvolatile memory. Nonvolatile memory is where parameter values are stored
so that they are remembered even when the controller is not being powered. In
PARAMETER SELECT MODE, pressing the ENTER key displays the version
number of the controller’s programming.
SELECT Key
The SELECT key is used to enter PARAMETER EDIT MODE from PARAMETER
SELECT MODE once a particular parameter has been selected for editing.
The SELECT key is also used to escape from PARAMETER EDIT MODE and
return to PARAMETER SELECT MODE without saving a change in a
parameter’s value. The value a parameter had when PARAMETER EDIT MODE
was entered is restored.
INC (increase) Key
The INC key is used to increase the displayed value.
In PARAMETER SELECT MODE, each press of the INC key will cause the next
higher parameter identification number to be displayed. When the maximum
parameter identification number is reached, the next INC key press will cause the
first parameter ID number to be displayed.
For example: If the controller’s label lists 36 parameters, then pressing the
INC key when the display is blinking the value 36 will cause the display to
wrap around to the first parameter listed and begin blinking the value 01.
In PARAMETER EDIT MODE, each INC key press will increase a parameter’s
current value. If the INC key is held down while in PARAMETER EDIT MODE the
value will automatically continue to be increased at gradually faster and faster
rates until the INC key is released or the parameter’s maximum allowed value is
reached. When the lower two digits display a 99, pressing the INC (increase key)
will cause the lower two digits to display a 00 and the hundreds digit will have
been increased by 1.
DEC (decrease) Key
The DEC (decrease) key is used to decrease the displayed value.
In PARAMETER SELECT MODE, each press of the DEC key will cause the next
lower parameter number to be displayed. When the first parameter identification
number is reached, the next DEC key press will cause the last parameter ID
number to be displayed.
For example: If the controller’s label lists 36 parameters, then pressing the
DEC key when the display is blinking the value 01 will cause the display to
wrap around to the last parameter listed, which in this case is 36, and blink
this new value.
In PARAMETER EDIT MODE, each DEC key press will decrease a parameter’s
current value. If the DEC key is held down while in PARAMETER EDIT MODE

DPG-2223-00X Controllers Manual 36522G
6 Woodward
the value will automatically continue to be decreased at gradually faster and
faster rates until the DEC key is released or the parameter’s minimum allowed
value is reached. When the lower two digits display a 00, pressing the DEC
(decrease key) will cause the lower two digits to display a 99 and the hundreds
digit will have been decreased by 1.
INC and DEC Keys Together
In PARAMETER EDIT MODE, the INC and DEC keys are used together to view
the value of the upper two digits of a 4-digit number.
Press and hold both INC and DEC simultaneously to view the value of a 4-digit
number’s upper two digits. Note that the left digit’s decimal point is turned on to
indicate that the thousands and the hundreds digits are being displayed.
Release INC and DEC and now the tens and the ones digits are again being
displayed. Note that the right digit’s decimal point is blinking if editing is allowed
or just ON if editing is not allowed.
Note: Not all parameters are 4-digit numbers, in which case the upper digits will
always display 0.0 (zero dot zero).
In PARAMETER SELECT MODE, pressing both the INC and DEC keys at the
same time will cause all LED segments to be turned on. This serves as an LED
test. Release the keys to resume displaying the parameter ID number.
LED Display
The two 7-segment LED’s along with each digit’s corresponding decimal point
are used to display values and indicate the operating mode of the user interface.
When the value being displayed by the two 7-segment LEDs is blinking,
PARAMETER SELECT MODE is active.
When the value displayed is not blinking, the selected parameter’s value is being
displayed and the user interface is in PARAMETER EDIT MODE. The decimal
points further indicate which half of a 4-digit value is being displayed and whether
editing is allowed.
The right digit’s decimal point is used to indicate that the lower 2 digits of a value
(the tens and the ones digits) are being displayed. When the right decimal point
is blinking, it means that the value can be modified using the INC key or the DEC
key. No blinking means that editing is not allowed or is password protected.
The left digit’s decimal point is used to indicate that the upper 2 digits of a value
(the thousands and the hundreds digits) are being displayed. The upper 2 digits
are always view only so the right decimal point does not blink. Changes to the
upper digits occur when a parameter’s lower digits overflow or underflow during
editing.
An overflow occurs when the value 99 is displayed and the INC key is pressed
(assuming this is not the parameter’s maximum value). This will cause the
displayed value to become 00 while the non-displayed value in the parameter’s
upper 2 digits will be increased by one. You can verify this by pressing both INC
and DEC at the same time to view the new value in the upper digits. For
example: If the full 4-digit value of the parameter you are editing is currently
1099, then after pressing the INC key the parameter’s new value will be 1100.

Manual 36522G DPG-2223-00X Controllers
An underflow occurs when the value 00 is displayed and the DEC key is pressed
(assuming this is not the parameter’s minimum value). This will cause the
displayed value to become 99 while the non-displayed value in the parameter’s
upper 2 digits will be decreased by one. You can verify this by pressing both INC
and DEC at the same time to view the new value in the upper digits. For
example: If the full 4-digit value of the parameter you are editing is currently
1800, then after pressing the DEC key the parameter’s new value will be 1799.
DECIMAL TO HEXADECIMAL
CONVERSION CHART
Decimal
Value Hexadecimal Equivalent
10 A
11 B
12 C
13 D
14 E
15 F
When values exceeding 9,999 are to
be displayed, the controller uses the
hexadecimal numbering system to
represent the value of the thousands
position.
Example 1: The desired set speed is
10,069 Hertz. The upper two digits
displayed by the controller will be
[A.0], and the lower 2 digits displayed
will be [69.].
Example 2: The desired set speed is 10,972 Hertz. The upper two digits
displayed by the controller will be [A.9] and the lower 2 digits displayed will be
[72.].
Woodward 7

DPG-2223-00X Controllers Manual 36522G
8 Woodward
Chapter 3
Parameter Reference
This chapter provides information regarding each parameter’s function. Each of
this chapter’s subsections provides information about a single parameter.
Subsection numbering corresponds to the parameter numbering on the
controller’s label to make it easier to locate information about the parameter
of interest. For example: Parameter 6. PROPORTIONAL is described in
subsection 3.6 (chapter 3 subsection 6).
The following table lists each of the parameters and their default, minimum, and
maximum values. Note that several of the parameters have minimum and
maximum values set by other parameters. Parameters listed in boldface are
required settings for the controller.
Note also that all Speed and Rate values are shown as magnetic pick-up
Hertz values (parameters 2-5, 16-18, 28-31, 34). Changing the No. of
Flywheel Teeth will cause different default values to be displayed based on
the Hertz to RPM formula described in subsection 3.1.
The parameter list provides information regarding each of the parameters that
can be adjusted when a computer is connected to the controller via the COMM
port and the Universal PST software.
Parameters marked with an asterisk (*) are
displayed as RPM values when the No. of Flywheel
Teeth is greater than zero. These parameters can be
changed with PST max by 100 at once when engine
is running.

Manual 36522G DPG-2223-00X Controllers
Wood ard 9w
Parameter List
DPG-2223-00X
PARAMETER NAME DEFAULT MINIMUM MAXIMUM
1. No. of Flywheel Teeth -001 0 0 0
-002 0 0 572
2. Remote Speed Min *1000 10 Remote Speed Max
3. Remote Spee Max *d1000 Remote Speed Min 11,000
4. Set Speed A*1000 Set Speed A Min Set Speed A Max
5. Idle Speed *500 Idle Speed Min Idle Speed Max
6. Proportional 25 1 99
7. Integral 50 0 99
8. Derivative 25 0 99
9. OVG @ Remote Speed Min 20 1 99
10. OVG @ Remote Speed Max 0 0 99
11. OVG @ Set Speed A 20 1 99
12. OVG @ Idle Speed 20 1 99
13. Gain Factor 20 1 99
14. Speed Filter 16 1 24
15. Idle Hold Ti em 0 0 9999
16. Accel Rate *1000 1 11000
17. Decel Rate * 1000 1 11000
18. Startup Rate *1000 1 11000
19. Startup Limit 1000 0 1000
20. Torque Limit 1000 0 1000
21. Integral Low Limit 0 0 Integral High Limit
22. Integral High Limit 99 Integral Low Limit 99
23. % Droop 0 0 100
24. No Load Cal 0 0 1000
25. Full Load Cal 1000 0 1000
26. Password 0 0 99
27. Over Speed Limit -001 100 0 100
-002*15000 10 15000
28. Set Speed A Min *10 10 Set Speed A
29. Set Speed A Max *11000 Set Speed A 11000
30. Idle Speed Min *10 10 Idle Speed
31. Idle Speed Max *11000 Idle Speed 11000
32. Duty Cycle Limit 95 10 95
33. E1 Handler Select -001 0 0 1
-002 0 0 2
34. Startup Speed *1000 10 11000
35. Startup Duty Cycle 30 5 95
36. Speed Pot Action 0 0 1
Parameters 4, 6, 7, 8, 11, 13, 14, and 34 require adjustment, while adjustments
to the other parameters are optional.
(*) See Important Note on previous page

DPG-2223-00X Controllers Manual 36522G
3.1 No. of Flywheel Teeth (optional)
This parameter provides the conversion factor needed by the controller to display
speeds as RPM values instead of Hertz values. Adjusting this parameter is
optional. To use this parameter correctly, you must know the exact number of
flywheel teeth that pass by the magnetic pickup in one revolution of the engine.
Adjusting the No. of Flywheel Teeth parameter is
prohibited while the engine is running.
The default value of 0 disables Hz to RPM conversions so all set speeds are
displayed in MPU (magnetic pick-up) Hertz. Setting this parameter to a value
other than zero enables Hz to RPM conversion.
Adjust this parameter to a value equal to the exact number of pulses that the
MPU delivers to the controller in one revolution of the engine to display set
speeds in RPM. The formula used to convert the magnetic pickup signal from a
Hertz value to a RPM value is:
()()
[]
[]
[]
EngineRPM
ethNumberOfTe sMpuHertz =
×60
For example:
(
)
(
)
[
]
[]
[]
RPM
Teeth sHz 1800 132 603960 =
×
The following derivation of the above formula can be used to convert from RPM
to Hertz.
()( )
[]
[] []
MpuHertz
sethNumberOfTeEngineRPM =
×
60
When the No. of Flywheel Teeth parameter is used, the
REMOTE SPEED MIN, REMOTE SPEED MAX, SET
SPEED A, IDLE SPEED, OVER SPEED LIMIT, SET
SPEED A MIN, SET SPEED A MAX, IDLE SPEED MIN,
IDLE SPEED MAX and STARTUP SPEED parameters are
displayed as RPM values instead of Hertz values.
10 Woodward

Manual 36522G DPG-2223-00X Controllers
Woodward 11
3.2 Remote Speed Min (optional)
REMOTE SPEED MIN is the controller’s minimum target speed when the
Remote Speed Pot is selected. The controller will read the remote speed pot
position when the SPEED SEL input is OPEN and the startup sequence is
complete.
The default value for REMOTE SPEED MIN is 1000 MPU Hertz. The
adjustable range for REMOTE SPEED MIN extends from 10 hertz to Remote
Speed Max.
When REMOTE SPEED MIN values greater than 9999 are displayed, the left
most digit uses the capital letter A to represent 10000 and the lower case letter b
to represent 11000.
For example: If REMOTE SPEED MIN is set to 11000, then the upper 2
digits will be displayed by the controller as [b.0] and the lower 2 digits will
display [00.]
3.3 Remote Speed Max (optional)
REMOTE SPEED MAX is the controller’s maximum target speed when the
Remote Speed Pot is selected. The controller will read the speed pot position
when the SPEED SEL input is OPEN and the startup sequence is complete.
The default value for REMOTE SPEED MAX is 1000 MPU Hertz. The
adjustable range for REMOTE SPEED MAX extends from REMOTE SPEED
MIN to 11,000 hertz.
When REMOTE SPEED MAX values greater than 9999 are displayed, the left
most digit uses the capital letter A to represent 10000 and the lower case letter b
to represent 11000.
For example: If REMOTE SPEED MAX is set to 11000, then the upper 2 digits
will be displayed by the controller as [b.0] and the lower 2 digits will display [00].
3.4 Set Speed A (required)
SET SPEED A is the controller’s target speed when the SPEED SEL input is at
+5 VDC and the startup sequence has completed. The startup sequence is
complete when the target speed and the engine speed reach the set speed.
If the controller’s SPEED SEL input is not used the Remote Speed Pot
determines the controller’s target speed after the startup sequence is completed.
The default value for SET SPEED A is 1000 MPU Hertz. The adjustable
range for SET SPEED A extends from SET SPEED A MIN to SET SPEED A
MAX.
When SET SPEED A values greater than 9999 are displayed, the left most digit
uses the capital letter A to represent 10000 and the lower case letter b to
represent 11000.
For example: If SET SPEED A is set to 10750, then the upper 2 digits will be
displayed by the controller as [A.7] and the lower 2 digits will display [50].
3.5 Idle Speed (optional)

DPG-2223-00X Controllers Manual 36522G
IDLE SPEED is the controller’s target speed for the IDLE HOLD TIME when the
engine is started. When the idle hold timer reaches zero, the target speed will be
determined by either the Remote Speed Pot position or SET SPEED A
depending on the state of the SPEED SEL input terminal.
The default value for IDLE SPEED is 500 MPU Hertz. The adjustable range
for IDLE SPEED extends from IDLE SPEED MIN and IDLE SPEED MAX.
3.6 Proportional (required)
The proportional term is
one of the interrelated PID
terms that determine how
well a DPG-2223-00X
controller governs the
engine’s speed. A speed
change creates a speed
error (the difference
between the target speed
and the actual speed.) The
proportional gain controls
the size of the controller
output response to a step
change in the speed error.
Error (%)
0(+)(-)
Controller output (%)
100%
0%
50%
Each error value produces a unique controller output value
Saturation
Saturation
Proportional
response
a higher Proportional value
Increases output response to a step
change in error
a lower Proportional value
Decreases output response to a step
Change in error
3.7 Integral (required)
The integral term is one of
the interrelated PID terms
that determine how well a
DPG-2223-00X controller
governs the engine’s
speed. The integral term
acts to drive speed error to
zero. In a proportional only
control with constant load,
there will be a constant
speed error that inversely
relates to the proportional
gain of the system. The
integral term is key to
isochronous speed control.
This term eliminates the difference between the programmed set speed and the
actual speed. The integral gain changes the time it takes to drive the error to zero.
12 Woodward
Note: Integral is needed to eliminate speed offsets due to proportional gain and
should never be left at zero.
100%
0%
50%
Integral response to constant error
Controller output (%)
larger
Integral
value smaller
Integral
value
Time
Time
Error