Woodward 2301E User manual

Product Manual 26641
(Revision K, 7/2016)
Original Instructions
2301E Digital Load Sharing
and Speed Control for Engines
8273-1011 / Ordinary Locations
8273-1012 / Hazardous Locations
Installation and Operation Manual

General
Precautions
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.
Revisions
This publication may have been revised or updated since this copy was produced.
To verify that you have the latest revision, check manual 26455, Customer
Publication Cross Reference and Revision Status & Distribution Restrictions, on
the publications page of the Woodward website:
www.woodward.com/publications
The latest version of most publications is available on the publications page. If
your publication is not there, please contact your customer service representative
to get the latest copy.
Proper Use
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.
Translated
Publications
If the cover of this publication states "Translation of the Original Instructions"
please note:
The original source of this publication may have been updated since this
translation was made. Be sure to check manual 26455, Customer Publication
Cross Reference and Revision Status & Distribution Restrictions, to verify whether
this translation is up to date. Out-of-date translations are marked with . Always
compare with the original for technical specifications and for proper and safe
installation and operation procedures.
Revisions—Changes in this publication since the last revision are indicated by a black line
alongside the text.
Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is
believed to be correct and reliable. However, no responsibility is assumed by Woodward unless otherwise expressly
undertaken. Manual 26641
Copyright © Woodward, Inc. 2012–2016
All Rights Reserved

Manual 26641 2301E Digital Control
Woodward i
Contents
WARNINGS AND NOTICES...........................................................................V
ELECTROSTATIC DISCHARGE AWARENESS ................................................VI
REGULATORY COMPLIANCE ..................................................................... VII
CHAPTER 1. GENERAL INFORMATION..........................................................1
Description..............................................................................................................1
Applications ............................................................................................................2
Control Options.......................................................................................................3
References .............................................................................................................3
CHAPTER 2. INSTALLATION.........................................................................9
Introduction.............................................................................................................9
Unpacking...............................................................................................................9
Power Requirements..............................................................................................9
Location Considerations.......................................................................................10
Electrical Connections..........................................................................................10
Shields and Grounding.........................................................................................11
LED System Status Indicators..............................................................................11
Setting Speed Range ...........................................................................................12
Potential Transformer Connections (Terminals 1–3) ...........................................12
Current Transformer Connections (Terminals 4–9) .............................................12
Real Power Load Calculation...............................................................................12
Load Share Lines (Terminals 10–12)...................................................................12
Power Supply (Terminals 48–50).........................................................................13
Discrete Inputs (Terminals 34–41) .......................................................................14
Close to Run or Minimum Fuel (Terminal 34) ......................................................15
Discrete Inputs B, C, D (Terminals 35, 36, 37).....................................................15
Failed Speed Override..........................................................................................16
Reset ....................................................................................................................16
Select 2nd Dynamics.............................................................................................16
Shutdown External ...............................................................................................16
Idle / Rated Speed................................................................................................17
Idle/Rated Software Switch ..................................................................................17
CB Aux/Droop Contact .........................................................................................17
Derate KW Load Reference .................................................................................18
50 / 60 Hertz Operation ........................................................................................18
Raise Speed/Load Contact (Terminal 38)............................................................18
Lower Speed/Load Contact (Terminal 39) ...........................................................19
Remote Speed Setting (Both Raise and Lower Contacts; Terminals 38 and 39)19
Load Generator (Terminal 40)..............................................................................20
Base Load (Terminal 41)......................................................................................20
Actuator Output (Terminals 13–15)......................................................................20
Analog Inputs (Terminals 19–24) .........................................................................20
Analog Input #1 (Terminals 19-20).......................................................................22
Analog Input #2 (Terminals 22-23).......................................................................22
Speed Sensor (Terminals 25-26) .........................................................................23
Relay Driver Outputs (Terminals 42, 43, & 44–48) ..............................................23
4–20 mA Output (Terminals 16–17).....................................................................24
Communication Ports...........................................................................................24
Installation Check-out Procedure .........................................................................28
CHAPTER 3. DESCRIPTION OF OPERATION ................................................29
Introduction...........................................................................................................29
Speed Control.......................................................................................................29
Control Dynamics .................................................................................................30

2301E Digital Control Manual 26641
ii Woodward
Minimum Fuel Function ........................................................................................31
Maximum Fuel Function .......................................................................................32
Start Fuel Limit Function.......................................................................................32
Torque Limiter.......................................................................................................33
Manifold Air Pressure Limiter ...............................................................................33
Speed/Load Reference and Ramps.....................................................................33
Speed Reference and Ramp Functions ...............................................................34
Speed Bias and Synchronizer Summing..............................................................36
Load Reference and Ramp Functions..................................................................36
Droop Function.....................................................................................................38
Droop/Isochronous Load Sharing on an Isolated Bus..........................................42
Isochronous Load Sharing on an Isolated Bus.....................................................43
Actuator Droop......................................................................................................43
Load Pulse / Load Rejection.................................................................................43
CHAPTER 4. ENTERING CONTROL SET POINTS ..........................................46
Introduction...........................................................................................................46
Control Assistant PC Interface .............................................................................46
Control Assistant Features ...................................................................................46
System Requirements ..........................................................................................47
Acquiring Control Assistant and the SOS Servlink OPC Server Software...........47
2301E Toolkit Service Tool...................................................................................58
Entering the Configure Mode................................................................................71
Configure Menu Descriptions ...............................................................................71
Exiting the Configure Mode ..................................................................................80
Service Menu Descriptions...................................................................................80
Saving the Tunable Values.................................................................................116
CHAPTER 5. INITIAL CONTROL SETTINGS ................................................117
Initial Prestart Settings........................................................................................117
Start-up Adjustments..........................................................................................117
Adjust for Stable Operation ................................................................................118
Dynamic Adjustment...........................................................................................119
Actuator Compensation Adjustment...................................................................119
Ramp Time Adjustment......................................................................................119
Raise/Lower Time Adjustment............................................................................119
Start Fuel Limit Adjustment ................................................................................120
Speed Sensor Check..........................................................................................120
Current Transformer (CT) Phasing Check .........................................................120
Phase Correction Procedure ..............................................................................121
Load Calibration Adjustment ..............................................................................124
Droop Adjustment...............................................................................................124
CHAPTER 6. ALTERNATE DYNAMIC ADJUSTMENTS ..................................125
Introduction.........................................................................................................125
Adjustment..........................................................................................................125
CHAPTER 7. TROUBLESHOOTING............................................................130
Introduction.........................................................................................................130
Troubleshooting Procedure ................................................................................130
Control Start-up ..................................................................................................130
Control Test and Calibration...............................................................................131
Troubleshooting Charts ......................................................................................132
CHAPTER 8. COMMUNICATIONS ..............................................................137
Modbus Communication.....................................................................................137
Monitor Only .......................................................................................................137
Monitor and Control............................................................................................137
Modbus Communication Mode...........................................................................138
Modbus Function Codes.....................................................................................139
Port Adjustments ................................................................................................139

Manual 26641 2301E Digital Control
Woodward iii
2301E Control Modbus Addresses.....................................................................140
Modbus Scale Factors........................................................................................141
Shutdown Command through Modbus...............................................................141
Start Command through Modbus .......................................................................142
For More Modbus Information............................................................................142
CHAPTER 9. PRODUCT SUPPORT AND SERVICE OPTIONS.........................143
Product Support Options....................................................................................143
Product Service Options.....................................................................................143
Returning Equipment for Repair.........................................................................144
Replacement Parts.............................................................................................144
Engineering Services..........................................................................................145
Contacting Woodward’s Support Organization ..................................................145
Technical Assistance..........................................................................................146
APPENDIX A. SERVICE/CONFIGURATION CHART......................................147
Configure Menus ................................................................................................147
Service Menus....................................................................................................148
APPENDIX B. PID EXAMPLES .................................................................155
PID Conversion Charts.......................................................................................156
APPENDIX C. MODBUS COMMUNICATION LIST.........................................158
APPENDIX D. SOFTWARE REVISION ........................................................161
APPENDIX E. PRINTING OUT A DATALOG ................................................164
APPENDIX F. QUICK ENGINE START GUIDE .............................................165
APPENDIX G. LOADING THE SETTINGS FILE FROM A 2301D TO A 2301E...166
APPENDIX H. CONNECTING A 2301E TO CONTROL A CAT ADEM CONTROL
IN THE DIRECT RACK MODE...................................................................168
APPENDIX I. 2301E CONTROL SPECIFICATIONS.......................................169
REVISION HISTORY ................................................................................170
DECLARATIONS .....................................................................................171
The following are trademarks of Woodward, Inc.:
DSLC
easYgen
The following are trademarks of their respective companies:
Modbus (Schneider Automation Inc.)
Pentium (Intel Corporation)
Windows (Microsoft Corporation)

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

Manual 26641 2301E Digital Control
Woodward v
Warnings and Notices
Important 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.
DANGER—Indicates a hazardous situation which, if not avoided, will result
in death 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.
Overspeed /
Overtemperature /
Overpressure
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.
Personal Protective
Equipment
The products described in this publication may present risks that
could lead to personal injury, loss of life, or property damage. Always
wear the appropriate personal protective equipment (PPE) for the job
at hand. Equipment that should be considered includes but is not
limited to:
Eye Protection
Hearing Protection
Hard Hat
Gloves
Safety Boots
Respirator
Always read the proper Material Safety Data Sheet (MSDS) for any
working fluid(s) and comply with recommended safety equipment.
Start-up
Be prepared to make an emergency shutdown when starting the
engine, turbine, or other type of prime mover, to protect against
runaway or overspeed with possible personal injury, loss of life, or
property damage.
Automotive
Applications
On- and off-highway Mobile Applications: Unless Woodward's control
functions as the supervisory control, customer should install a
system totally independent of the prime mover control system that
monitors for supervisory control of engine (and takes appropriate
action if supervisory control is lost) to protect against loss of engine
control with possible personal injury, loss of life, or property damage.

2301E Digital Control Manual 26641
vi Woodward
Battery Charging
Device
To prevent damage to a control system that uses an alternator or
battery-charging device, make sure the charging device is turned off
before disconnecting the battery from the system.
Electrostatic Discharge Awareness
Electrostatic
Precautions
Electronic controls contain static-sensitive parts. Observe the
following precautions to prevent damage to these parts:
Discharge body static before handling the control (with power to
the control turned off, contact a grounded surface and maintain
contact while handling the control).
Avoid all plastic, vinyl, and Styrofoam (except antistatic versions)
around printed circuit boards.
Do not touch the components or conductors on a printed circuit
board with your hands or with conductive devices.
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.
Follow these precautions when working with or near the control.
1. 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.
2. 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.

Manual 26641 2301E Digital Control
Woodward vii
Regulatory Compliance
European Compliance for CE Mark
These listings are limited only to those units bearing the CE Marking.
Low Voltage Directive:
Directive 2014/35/EU on the harmonisation of the laws of
the Member States relating to the making available on the
market of electrical equipment designed for use within
certain voltage limits
ATEX –Potentially
Explosive Atmospheres
Directive:
Directive 2014/34/EU on the harmonisation of the laws of
the Member States relating to equipment and protective
systems intended for use in potentially explosive
atmospheres
Zone 2, Category 3, Group II G, Ex nA IIC T3 Gc X
Zone 2, Category 3, Group II G, Ex nA IIC T4 Gc X
EMC Directive:
Declared to Directive 2014/30/EU of the European
Parliament and of the Council of 26 February 2014 on the
harmonization of the laws of the Member States relating to
electromagnetic compatibility (EMC)
North American Compliance
These listings are limited only to those units bearing the appropriate CSA
identification and marking.
CSA: CSA Certified for Class I, Division 2, Groups A, B, C,
D, T3 or T4 Hazardous Locations and ordinary
locations at 70 °C ambient. For use in Canada and
the United States.
Certificate 1150575
NOTE—Wiring must be in accordance with applicable electric codes with the
authority having jurisdiction.
T3 when the Potential Transformer input is 240 Vac
T4 when the Potential Transformer input is 120 Vac
or less
Marine Compliance
American Bureau ABS Rules 2012 SVR 1-1-4/7.7, 1-1-A3, 4-2-1/7.3,
of Shipping: 7.5.1; 4-9-3/17, 4-9-4/23 & 4-9-7/Table 9 (as
appropriate)
Bureau Veritas: BV Rules for the Classification of Steel Ships,
Approval valid for ships intended to be granted with
the following additional class notations: AUT-UMS,
AUT-CCS, AUT-PORT and AUT-IMS.
China Classification CCS Chapter 2, Part Seven of CCS ~ “Rules for
Society: Classification of Sea-going Steel Ships~” 2012
Det Norske Veritas: Standard for Certification No. 2.4, 2006:
Temperature Class B, Humidity Class B, Vibration
Class A, EMC Class A, Enclosure B.

2301E Digital Control Manual 26641
viii Woodward
Lloyd’s Register LR Type Approval Test Specification No. 1, 2002 for
of Shipping: Shipping: Environmental Categories ENV1, ENV2
and ENV3
Nippon Kaiji Kyokai: Requirements specified in Chapter 1, Part 7 of
Guidance for the approval and Type Approval of
materials and equipment for Marine use and
relevant Society’s Rules.
Australia & New Zealand Compliance
These listings are limited to those units bearing the C-Tick mark:
C-Tick (ACA/RSM): Declared Separately to the Australian
Radiocommunications Act of 1992 and the New
Zealand Radiocommunications Act of 1989.
Special Conditions for Safe Use
The control must be installed in a suitable enclosure. The final combination must
be approved by the local authority having jurisdiction.
Connect the ground terminal to earth ground.
Use supply wire rated for minimum 75 °C
Use signal wire rated for a minimum of 240 Vac.
Per EN 60079-15:2010: Device meets ATEX Zone 2 requirements when installed
in an ATEX compliant IP54 or better enclosure.
T3 when the Potential Transformer input is 240 Vac.
T4 when the Potential Transformer input is 120 Vac or less.
EXPLOSION HAZARD—Do not remove covers or connect/disconnect
electrical connectors unless power has been switched off or the area
is known to be non-hazardous.
Substitution of components may impair suitability for Class I,
Division 2.
RISQUE D’EXPLOSION—Ne pas enlever les couvercles, ni
raccorder / débrancher les prises électriques, sans vous en
assurez auparavant que le système a bien été mis hors
tension; ou que vous vous situez bien dans une zone non
explosive.
La substitution de composants peut rendre ce matériel
inacceptable pour les emplacements de Classe I, Division 2.

Manual 26641 2301E Digital Control
Woodward 1
Chapter 1.
General Information
Description
The Woodward 2301E controls load sharing and speed of generators driven by
diesel or gaseous engines. (These power sources are referred to as “prime
movers” throughout this manual.) The 2301E is a microprocessor-based digital
control designed to include the functions of and be compatible with 2301A and
2301D load sharing controls. The increased flexibility of software allows the
2301E to include control functions that required additional equipment in previous
versions of 2301A and 2301D control systems. The 2301E therefore is suitable
for upgrading existing control systems for increased functionality in new
installations.
The 2301E has the following Woodward part numbers:
8273-1011
2301E Load Sharing and Speed Control, 24 Vdc input,
Ordinary Locations
8273-1012
2301E Load Sharing and Speed Control, 24 Vdc input,
Hazardous Locations
The control is housed in a sheet-metal chassis and consists of a single printed
circuit board. The 2301E is set up and configured through an external computer
connected at the 9-pin connector (RS-232 Port) at the front of the control. The
configuration software (either Servlink / Watch Windows or Control Assistant) can
be downloaded from our website at www.woodward.com.
The 2301E provides control in either isochronous mode, droop mode, or base
load mode. The 2301E will allow for soft load transfer when being added to or
removed from a bus.
The isochronous mode is used for constant prime mover speed with:
Single prime mover operation or
Two or more prime movers controlled by Woodward analog load sharing
control systems on an isolated bus
The droop mode is used for speed control as a function of load with:
Single prime mover operation on an infinite bus or
Parallel operation of two or more prime movers
The base load mode provides constant load level operation against a bus with
the load controlled by the 2301E.
The load setting is set by a fixed reference,
External input analog input,
External contact control of the reference.

2301E Digital Control Manual 26641
2 Woodward
The 2301E Control Hardware includes:
1 Load Sensor
1 Actuator Driver
1 MPU Speed Sensor
1 Configurable Analog Output
2 Configurable Analog Inputs
8 Discrete (Switch) Inputs (3 inputs are configurable)
4 Configurable Discrete (Relay Driver) Outputs
2 Serial Ports (RS-232 and RS-422)
The following is an example of the typical hardware needed for a 2301E system
controlling a single prime mover and generator:
A 2301E electronic control
An external 18 to 36 Vdc power source
A speed-sensing device, typically a Magnetic Pickup (MPU)
A proportional actuator to position the fuel-metering device
Current and potential transformers for measuring the load carried by the
generator
The engine and generator synchronous speed (50 or 60 Hz Generator
Frequency) needs to be within 90 to 3600 rpm. The frequency from the magnetic
pickup must be within the range of 100 to 25 000 Hz at rated speed. The 2301E
speed range needs to be configured using an external computer during
installation.
The 2301E has special algorithms that will enhance the speed controls transient
response by utilizing Load Pulse and Load Rejection logic. By looking at the
derivative or rate of change of the generator load, we can anticipate a speed or
frequency change. This anticipation logic can temporarily bump the speed up or
down to counter-react the speed change due to load. Service Menu W contains
all of the variables to set up this feature.
These 2301E controls operate with an input of 18 to 36 Vdc.
Applications
Because of the configuration software available in the 2301E hardware,
application variations can be selected using an external computer. Changing the
application to accommodate engine speed range, gear teeth, and selection of
forward or reverse acting actuator is a matter of software setup rather than
changing hardware. See Chapter 4 to enter control set points.
The speed is factory set for 900 rpm, 900 Hz MPU speed with 60 teeth.
Using the wrong speed configuration could cause an overspeed with
resulting damage to equipment or personal injury or death.
The 2301E Control can be configured for forward- or reverse-acting applications.
In reverse-acting systems, the actuator calls for more fuel when the actuator
voltage decreases. Complete loss of voltage to the actuator will drive the actuator
to full fuel. This allows a backup mechanical ballhead governor to take control
rather than shut down the prime mover as would a direct-acting system.
External wiring connections for reverse-acting controls are identical
to those for direct-acting controls.

Manual 26641 2301E Digital Control
Woodward 3
Control Options
Here is a brief summary of programmable options in addition to speed range and
actuator type:
Actuator current range 0–20 mA, 4–20 mA, 0–200 mA, or PWM.
oCurrent is for the Actuator Output, PWM is on Discrete Out DO1.
Speed trim with external raise and lower switches. Tunable rates.
External setting of analog speed reference input or an external analog base
load reference.
Multiple dynamics options—
single dynamics setting
selection of 2 sets of dynamics switched with Circuit Breaker Aux input
5 slope gain settings
error window gain ratio
Start fuel limiter / Manifold Air Pressure limiter / Torque Limiter / Idle Fuel
limiter / Load Acceptance and Load Rejection limiter / Generator Breaker
Open Fuel Limiter
Programmable Analog Output
Programmable Discrete Outputs
Programmable Discrete Inputs
Precise Frequency Control on isolated systems
References
The following publications contain additional product or installation information on
Load Sharing and Speed Controls, and related components. They can be
ordered from any Woodward office.
Manual Title
25070 Electric Governor Installation Guide
25195 Governing Fundamentals
82510 Magnetic Pickups and Proximity Switches for Electric Governors
82715 Guide for Handling and Protection of Electronic Controls, Printed
Circuit Boards, and Modules
Product
Spec Title
03404 2301E Digital 2301 Control
82516 EG-3P/3PC Actuator
82575 EGB-1P/2P Governor/Actuator

2301E Digital Control Manual 26641
4 Woodward
Figure 1-1a. 2301E Outline Drawing (Ordinary Locations)

Manual 26641 2301E Digital Control
Woodward 5
Figure 1-1b. 2301E Outline Drawing (Hazardous Locations)

2301E Digital Control Manual 26641
6 Woodward
Figure 1-2a. 2301E Control Wiring Diagram (sheet 1)

Manual 26641 2301E Digital Control
Woodward 7
Figure 1-2b. 2301E Control Wiring Diagram (sheet 2)

2301E Digital Control Manual 26641
8 Woodward
Figure 1-2c. 2301E Control Wiring Diagram (notes)

Manual 26641 2301E Digital Control
Woodward 9
Chapter 2.
Installation
Introduction
This chapter contains general installation instructions for the 2301E control.
Power requirements, environmental precautions, and location considerations are
included to determine the best location for the control. Additional information
includes unpacking instructions, electrical connections, and an installation check-
out procedure.
Due to typical noise levels in engine and turbine environments,
hearing protection should be worn when working on or around the
2301E.
The surface of this product can become hot enough or cold enough
to be a hazard. Use protective gear for product handling in these
circumstances. Temperature ratings are included in the specification
section of this manual.
External fire protection is not provided in the scope of this product. It is
the responsibility of the user to satisfy any applicable requirements for
their system.
Unpacking
Before handling the control, read all of this chapter and “Electrostatic Discharge
Awareness” at the beginning of this manual. Be careful when unpacking the
electronic control. Check the control for signs of damage such as bent or dented
panels, scratches, and loose or broken parts. If any damage is found,
immediately notify the shipper. Do not take the control out of the ESD bag it ships
in until ESD precautions are in place. Keep yourself discharged while handing
the unit outside the ESD bag, at least until it is grounded.
Power Requirements
The 2301E control requires a voltage source of 18 to 36 Vdc, with a current
capacity of at least 600 mA for operating power. If a battery is used for operating
power, an alternator or other battery charging device is necessary to maintain a
stable supply voltage. The battery charging device should be suppressed from
load dump events or the power bus must have central suppression. The 2301E
does not have sufficient capability to withstand all battery load dump events.
To prevent damage to the control, make sure that the alternator or
other battery-charging device is turned off or disconnected before
disconnecting the battery from the control.

2301E Digital Control Manual 26641
10 Woodward
Location Considerations
This product is intended for installation in a “closed electrical operating area” or in
an enclosed industrial control cabinet. Consider these requirements when
selecting the mounting location:
Adequate ventilation for cooling
Space for servicing and repair
Protection from direct exposure to water or to a condensation-prone
environment
Protection from high-voltage or high-current devices, or devices which
produce electromagnetic interference (segregate the unit and wiring by at
least 15 cm (6 inches).
Avoidance of vibration
Selection of a location that will provide an operating ambient air temperature
range of –40 to +70 °C (–40 to +158 °F) at the control
The control must NOT be mounted on the engine.
Electrical Connections
All inputs and outputs are made through screwless spring-actuated terminal
blocks. Use ESD precautions noted above when installing the wiring to prevent
damage due to ESD.
The spring clamp can be actuated by using a standard 2.5 mm or 3/32 inch flat
bladed screwdriver. The terminal blocks accept wires from 0.08–4 mm²
(27–12 AWG). Two 18 AWG or three 20 AWG wires can be easily installed in
each terminal. Wires for the fixed mounted power terminals should be stripped
5–6 mm (0.22 inch) long.
Do not tin (solder) the wires that terminate at the terminal blocks. The
spring-loaded terminal blocks are designed to flatten stranded wire,
and if those strands are tinned together, the connection loses
surface area and is degraded.
Due to the hazardous location listings associated with this product,
proper wire type and wiring practices are critical to operation.
Do not connect any cable grounds to “instrument ground”, “control
ground”, or any non-earth ground system. Make all required
electrical connections based on the wiring diagrams (Figures
1-2a/b/c).
Cabling and installation wiring can affect the Electromagnetic Compatibility
(EMC) of the device, its ability to operate in an environment without being
interfered with, or interfering with other devices. Often other controls are installed
in the same enclosure, too. To address EMC concerns, it is recommended that
all low-current wires be separated from all high-current wire and similarly for
high-voltage and low-voltage wiring. For example, relay contact wiring and
electric motor drive or ignition system wiring should be at least 30 cm (12 inches)
from any 2301E wiring. And for example, analog inputs/output wiring should be
separated from power wiring by at least 15 cm (6 inches).