Product Manual 26691

(Revision E, 7/2016)
Original Instructions

2300E Digital Load Sharing

and Speed Control for Engines

8273-1017 / Ordinary Locations

8273-1018 / Hazardous Locations

Installation and Operation Manual

 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.
General
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, check manual 26455, Customer
Publication Cross Reference and Revision Status & Distribution Restrictions, on
Revisions 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.

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
Proper Use 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.

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
Translated translation was made. Be sure to check manual 26455, Customer Publication
Publications 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 Out-of-date translations are marked with .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 26691
Copyright © Woodward, Inc. 2012–2016
All Rights Reserved
Manual 26691 2300E Digital Control

Contents

WARNINGS AND NOTICES .......................................................................... III

ELECTROSTATIC DISCHARGE AWARENESS ................................................ IV
REGULATORY COMPLIANCE ....................................................................... V
CHAPTER 1. GENERAL INFORMATION .......................................................... 1
Description .............................................................................................................. 1
References ............................................................................................................. 2
CHAPTER 2. INSTALLATION ......................................................................... 8
Introduction ............................................................................................................. 8
Unpacking ............................................................................................................... 8
Power Requirements .............................................................................................. 8
Location Considerations ......................................................................................... 9
Electrical Connections ............................................................................................ 9
Shields and Grounding .........................................................................................10
LED System Status Indicators ..............................................................................10
Potential Transformer Connections (Terminals 1–3) ...........................................11
Current Transformer Connections (Terminals 4–9) .............................................11
Real Power Load Calculation ...............................................................................11
Load Share Lines (Terminals 10–12) ...................................................................11
Power Supply (Terminals 48–50) .........................................................................12
Discrete Inputs (Terminals 34–41) .......................................................................12
Actuator Output (Terminals 13–15) ......................................................................13
Analog Inputs (Terminals 19–24) .........................................................................13
Speed Sensor (Terminals 25-30) .........................................................................14
Relay Driver Outputs (Terminals 42, 43, & 44–48) ..............................................14
4–20 mA Output (Terminals 16–17) .....................................................................14
Communication Ports ...........................................................................................15
CAN Communication Port (Terminals 51–54) ......................................................18
Installation Check-out Procedure .........................................................................23
CHAPTER 3. GAP SOFTWARE AND COMMUNICATION PROCEDURES............ 24
Introduction ...........................................................................................................24
GAP Software .......................................................................................................24
Control Assistant PC Interface .............................................................................26
CHAPTER 4. PRODUCT SUPPORT AND SERVICE OPTIONS........................... 27
Product Support Options ......................................................................................27
Product Service Options .......................................................................................27
Returning Equipment for Repair ...........................................................................28
Replacement Parts ...............................................................................................28
Engineering Services ............................................................................................29
Contacting Woodward’s Support Organization ....................................................29
Technical Assistance ............................................................................................30
APPENDIX A. 2300E CONTROL SPECIFICATIONS ....................................... 31
REVISION HISTORY .................................................................................. 32
DECLARATIONS ....................................................................................... 33

Woodward i
2300E Digital Control Manual 26691

Illustrations and Tables

Figure 1-1a. 2300E Outline Drawing (Ordinary Locations) ....................................3

Figure 1-1b. 2300E Outline Drawing (Hazardous Locations) .................................4
Figure 1-2a. 2300E Control Wiring Diagram (sheet 1) ...........................................5
Figure 1-2b. 2300E Control Wiring Diagram (sheet 2) ...........................................6
Figure 1-2c. 2300E Control Wiring Diagram (notes) ..............................................7
Figure 2-1. Installation of Wiring into Terminal .....................................................10
Figure 2-2. RS-232 Pin assignments for Serial Communication Cable ...............15
Figure 2-3. Typical RS-422 Communications Connections .................................16
Figure 2-4. RS-422 Terminator Locations ............................................................16
Figure 2-5. Preferred Multipoint Wiring Using Shielded Twisted-pair Cable with a
Separate Signal Ground Wire ..........................................................17
Figure 2-6. Alternate Multipoint Wiring Using Shielded Twisted-pair Cable without
a Separate Signal Ground Wire .......................................................18
Figure 2-7. CAN Cable Cross-Section..................................................................20
Figure 2-8. CAN System Wiring Example ............................................................21
Figure 3-1. Boot Mode Jumpers ...........................................................................26

Table 2-1. CAN Specification ...............................................................................18

Table 2-2. Cable Specification ..............................................................................19
Table 2-3. CAN-1 Wiring Limitations ....................................................................22

The following are trademarks of Woodward, Inc.:

DSLC

The following are trademarks of their respective companies:

Modbus (Schneider Automation Inc.)

ii Woodward
Manual 26691 2300E Digital Control

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.

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,
Overspeed / loss of life, or property damage.
Overtemperature / The overspeed shutdown device must be totally independent of the
Overpressure prime mover control system. An overtemperature or overpressure
shutdown device may also be needed for safety, as appropriate.

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
Personal Protective at hand. Equipment that should be considered includes but is not
limited to:
Equipment
 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.

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
Start-up property damage.

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
Automotive monitors for supervisory control of engine (and takes appropriate
action if supervisory control is lost) to protect against loss of engine
Applications control with possible personal injury, loss of life, or property damage.

Woodward iii
 2300E Digital Control Manual 26691

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.
Battery Charging
Device

Electrostatic Discharge Awareness

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
Electrostatic contact while handling the control).
Precautions  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.

iv Woodward
Manual 26691 2300E Digital Control

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 Directive 2014/34/EU on the harmonisation of the laws of
Explosive Atmospheres the Member States relating to equipment and protective
Directive: 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.

Woodward v
2300E Digital Control Manual 26691
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.

Other International Compliance

Australia & Compliance is limited to application for those units

New Zealand: bearing the Regulatory Compliance Mark (RCM) or used in
applications where only EMC is applicable, such as
“Fixed Installations” where the RCM & a DoC are not required.

EMC: The Electromagnetic Compatibility (EMC) portion of

RCM Declaration for the Australian Radio
Communications Act (with applicable amendments) is
a separate document only created for marked
products. The products with RCM on the label have a
DoC available, but all products comply with CISPR11
Group 1 Class A emissions per EN/IEC 61000-6-4 via
Electromagnetic Interference (EMI) testing. This
product is part of “Fixed Installations”.

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.

vi Woodward
Manual 26691 2300E Digital Control

Chapter 1.
General Information

Description
The 2300E is a digital control that can be programmed with applicable application
software. This control is housed in a sheet metal chassis and consists of a single
printed circuit board. This control is designed to perform the speed and load
control functions for a small engine, steam turbine, or gas turbine. The 2300E
has no application software in it when shipped from Woodward, which allows it to
be configured and modified to meet site-specific requirements. It utilizes the
Woodward GAP 3.X software to create an application specific application
software that can be downloaded to the 2300E.

The 2300E has the following Woodward part numbers:

2300E Load Sharing and Speed Control, 24 Vdc input, Ordinary

8273-1017
Locations
2300E Load Sharing and Speed Control, 24 Vdc input, Hazardous
8273-1018
Locations

The control is housed in a sheet-metal chassis and consists of a single printed

circuit board. The 2300E 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, Control Assistant, can be downloaded from our website at
www.woodward.com.

The 2300E has two serial communication ports, allowing it to easily interface with
a Human Machine Interface (HMI), PLC, or plant DCS. These configuration and
dynamic settings are set, changed, tuned, and saved via a laptop computer and
Woodward’s user-friendly Control Assistant software program. This program
allows users to set and adjust all application-based parameters, plus upload and
download configurations to and from the control. Woodward’s Toolkit software is
also capable of communicating to the 2300E

The 2300E Control Hardware includes:

 1 Load Sensor
 1 Actuator Driver
 2 MPU Speed Sensors
 1 Analog Output
 2 Analog Inputs
 8 Discrete (Switch) Inputs
 4 Discrete (Relay Driver) Outputs
 2 Serial Ports
 1 CAN Port

The following is an example of the typical hardware needed for a 2300E system
controlling a single prime mover and generator:
 A 2300E electronic control
 An external 18 to 36 Vdc power source
 Two speed-sensing devices, typically magnetic pickups (MPUs)
 A proportional actuator to position the fuel-metering device
 Current and potential transformers for measuring the load carried by the
generator

Woodward 1
2300E Digital Control Manual 26691
The frequency from the magnetic pickup must be within the range of 100 to 25
000 Hz at rated speed. The 2300E speed range needs to be configured using an
external computer during installation.

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
03405 2300E Digital Load Sharing and Speed Control Hardware
82516 EG-3P/3PC Actuator
82575 EGB-1P/2P Governor/Actuator

2 Woodward
Manual 26691 2300E Digital Control

Figure 1-1a. 2300E Outline Drawing (Ordinary Locations)

Woodward 3
2300E Digital Control Manual 26691

Figure 1-1b. 2300E Outline Drawing (Hazardous Locations)

4 Woodward
 Manual 26691 2300E Digital Control

30 1

10 29 MPU SPEED I NPUT # 2

( 1- 3 0 V AC)
28
AMMET ERS, ET C
27 1
9 ON SWI T CHBOARD 8

26 MPU SPEED I NPUT # 1 8

( 1- 3 0 V AC)
25 7
WARNI NG
24 1 6
3

23 5
ANAL OG I NPUT # 2
( 0- 5 V DC, 4 - 2 0mA, OR 2 .5 V DC)
22 4
2
21 1

20 ANAL OG I NPUT # 1 A
( 2 .5 V DC)
19
B

18 1
C
17 ANAL OG OUT PUT
4 - 2 0mA
16 DET AI L " A"

15 1 OPT I ONAL CURRENT

T RANSF ORMER CONNECT I ON
14 B
ACT UAT OR ACT UAT OR OUT PUT
0- 2 0mA OR 0- 2 00mA
13 A

12 1

11
L OAD SHARE
10 AMMET ERS, ET C
ON SWI T CHBOARD 8

9
2
8
7
3 WARNI NG 2
6
5
2
4
3
9 0- 2 4 0 V AC
4 5 - 6 6 HZ T O V OL T MET ER, ET C
POT ENT I AL 2 ON SWI T CHBOARD
V OL T AGE
1

5
MAI N
BUS
A

4
GENERAT OR B
4
C

6 CI RCUI T
4 BREAKER

Figure 1-2a. 2300E Control Wiring Diagram (sheet 1)

Woodward 5
 2300E Digital Control Manual 26691

SERI AL I / 0
54 CAN HI GH
( 9 - DF )

53 CAN SHI EL D
10 1
52 CAN L OW 6
2 RX
51 CAN GND 7
RS- 2 3 2 PORT
3 TX
8
4
9
50 CHASSI S GROUND
5 COM

49 I NPUT POWER
( 18 - 3 6 V DC, 0.6 AMP MAX)
48
47 9 DO- 4

46 9 DO- 3
DI SCRET E OUT PUT 1
45 9 DO- 2 RT + 6
2 T+
44 9 DO- 1 R- 7
RS- 4 2 2 PORT 3 R+
43 + 12 / 2 4 V DC T- 8
REL AY DRI V ER POWER
I NPUT 4
42 ( 0.8 AMP MAX) RT - 9
5 GND
41 DI - H

40 DI - G

39 DI - F

38 DI - E
DI SCRET E I NPUT S 7
( APPL Y + 2 4 V T O ACT I V AT E)
37 DI - D

36 DI - C

35 DI - B

34 DI - A

33 COM
J UMPER I F USI NG I NT ERNAL
POWER F OR DI SCRET E I NPUT S
32 2 4 V DC OUT PUT
POWER F OR
DI SCRET E I NPUT S
31

Figure 1-2b. 2300E Control Wiring Diagram (sheet 2)

6 Woodward
Manual 26691 2300E Digital Control

SHI EL DED WI RES T O BE T WI ST ED PAI RS, WI T H

1 SHI EL D GROUNDED AT CONT ROL END ONL Y.

2 POI NT OF GROUNDI NG I F REQUI RED BY WI RI NG CODE.

I NT ERNAL CURRENT T RANSF ORMER BURDEN MUST BE

3 CONNECT ED ACROSS POWER SOURCE CURRENT T RANSF ORMER
AT AL L T I MES, T O PREV ENT L ET HAL HI GH V OL T AGES.

POWER SOURCE CURRENT T RANSF ORMERS SHOUL D BE

4 SI Z ED T O PRODUCE 5 A SECONDARY CURRENT WI T H
MAXI MUM GENERAT OR CURRENT . CURRENT T RANSF ORMER
BURDEN I S L ESS T HAN 0.1 V A PER PHASE.

WI T H A BAL ANCED T HREE PHASE L OAD AND UNI T Y

5 POWER F ACT OR, T HE CURRENT T RANSF ORMERS
SHOUL D BE WI RED I N T HE CORRECT POT ENT I AL L EG
AND MUST BE PHASED AT T HE CONT ROL AS F OL L OWS:

PHASE A: POT ENT I AL T ERMI NAL 1, WI T H RESPECT

T O NEUT RAL , I N PHASE WI T H CT
T ERMI NAL S 4 ( ) TO 5 .
PHASE B: POT ENT I AL T ERMI NAL 2 , WI T H RESPECT
T O NEUT RAL , I N PHASE WI T H CT
T ERMI NAL S 6 ( ) TO 7 .

PHASE C: POT ENT I AL T ERMI NAL 3 , WI T H RESPECT

T O NEUT RAL , I N PHASE WI T H CT
T ERMI NAL S 8 ( ) TO 9 .

6 F OR OPT I ONAL CURRENT T RANSF ORMER CONNECT I ON, SEE DET AI L " A" .

7 WARNI NG: DO NOT USE F OR EMERGENCY SHUT DOWN.

T HE PRI ME MOV ER SHOUL D BE EQUI PPED WI T H SEPERAT E

OV ERSPEED, OV ERT EMPERAT URE OR OV ERPRESSURE SHUT DOWN
DEV I CE( S) T O PROT ECT AGAI NST RUNAWAY OR DAMAGE T O T HE
PRI ME MOV ER WI T H POSSI BL E PERSONAL I NJ URY OR L OSS OF L I F E.

8 I F MET ERS ARE NOT USED, J UMPERS MUST BE

I NST AL L ED I N PL ACE OF MET ERS SHOWN.

9 I NDI CAT ES REL AY COI L OR L AMP, 2 00 mA MAXI MUM PER CHANNEL .

10 OPT I ONAL SEE BOM

Figure 1-2c. 2300E Control Wiring Diagram (notes)

Woodward 7
2300E Digital Control Manual 26691

Chapter 2.
Installation

Introduction
This chapter contains general installation instructions for the 2300E 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
2300E.

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 2300E 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 2300E
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.

8 Woodward
Manual 26691 2300E Digital Control

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 2300E wiring. And for example, analog inputs/output wiring should be
separated from power wiring by at least 15 cm (6 inches).

Woodward 9
2300E Digital Control Manual 26691

Shields and Grounding

An individual shield termination is provided at the terminal block for each of the
signals requiring shielding. All of the inputs having a shield pin should be wired
using shielded, twisted-pair wiring. The optimum exposed wire length beyond the
shield should be limited to 25 mm (1 inch); however, up to 75 mm (3 inches) may
be used.

Relay outputs, contact inputs, and power supply wiring do not normally require
shielding, but can be shielded if desired. Shields should terminate to chassis and
may be direct or share a shield pin except the AI or CAN shields.

The 2300E is designed for shield termination to earth ground at the control. If
intervening terminal blocks are used in routing a signal, the shield should be
continued through the terminal block. If shield grounding is desired at the
terminal block, it should be ac coupled to earth with a capacitor. All other shield
terminations except at the control (in the field) should be ac coupled to earth
through a capacitor. A 1000 pF, 500 V capacitor is typically sufficient, however
1–10 nF, 500–1500 V may be used or needed, and 1000 pF (1 nF) 1000 V is
recommended. The intent is to provide a low impedance path to earth for the
shield at frequencies of 150 kHz and up. Multiple direct connections of a shield to
earth risk high levels of current to flow within the shield (exception, see note
below on cabinet installations).

Shields can be grounded at both ends (2300E and load) if the cable length is
sufficiently short (i.e., within a cabinet, less than about 10 m straight line between
the ground points) to prevent ground loop current in the shield.

Cabinet Installations: If the 2300E is installed in a cabinet, shielded

I/O can be terminated directly to the cabinet (earth ground) at the
entry/exit of the cabinet, as well as at the control (recommended).

Installation concerns associated with wiring in systems with other

devices are addressed in the electrical connections section.

Figure 2-1. Installation of Wiring into Terminal

LED System Status Indicators

The LED located between terminals 30 and 31 is a two colored LED. The
following provides the functions of the LED status:
 LED Off = Power Off
 LED Green = System On
 LED Solid Red = I/O Lock
 LED Flashing Red = Fault (This indicates a major problem and should be
returned to Woodward for service).
10 Woodward
Manual 26691 2300E Digital Control

Potential Transformer Connections (Terminals 1–3)

Connect the potential transformer secondary leads to the following terminals:
Phase A to terminal 1
Phase B to terminal 2
Phase C to terminal 3

The potential transformer secondary line-to-line voltage must produce 90 to 120 Vac or
200 to 240 Vac. The PT and CT input connections are not needed if using a DSLC for
load sharing or load control. Refer to the plant wiring diagram, Figure 1-2.

Current Transformer Connections (Terminals 4–9)

The standard method of connecting the current transformers is shown in the
plant wiring diagram, Figure 1-2. An alternate method is the open delta
connection shown in the insert in the plant wiring diagram.

Real Power Load Calculation

The control uses the equation Power = 3 * V * I * P.F. where V = Voltage, I =
current, and P.F. = Power Factor. In the 2300E, the PT Voltage part of the
equation is deemed to be constant. Therefore if the Voltage on the system
changes, the calculated Power will change a small amount.

Load Share Lines (Terminals 10–12)

The Load Share Lines provide an analog communication path between
compatible controls. The 2300E provides an internal relay for connecting the
Load Share Signal to the internal circuitry at the appropriate times. When the
internal relay is closed, a green LED will illuminate between terminals 9 and 10.
Because the load-sharing-line relay is contained in the control, no relay is
required between the control and the load-sharing-line bus.

Do not touch Load Share pins without discharging ESD to physical

earth first and making sure the control’s PE terminal is connected to
physical earth before wiring.

The load share signals have 4 kV ESD withstand when the control is
not grounded rather than 8 kV or more on other pins. (Load Share
Lines have at least 7 kV withstand when the control is grounded.)

Greater than 4 kV ESD events are uncommon in the typical

installation environment, but may happen.

Use shielded cable and connect the load-sharing lines directly to terminals 10(+)
and 11(–). Connect the shield to terminal 12(chassis). When all controls in the
system are of the 2300E, 2301D, or 2301A types, the shields may be connected
continuously between controls. When load sharing with different controls, do not
connect the shields at the point where connections are made to the load-sharing-
line bus or if needed, connect only through a capacitor. The droop contact for
selecting droop or isochronous operation is wired in series with the circuit-
breaker auxiliary contact between terminal 37 and terminal 31 (see CB
Aux/Droop contact).

Woodward 11
2300E Digital Control Manual 26691
When running a single unit on an infinite bus with an external load control device,
terminals 37 and 40 must be connected to terminal 31 to connect the Load
Matching Circuit to the load-sharing lines. The load-sharing lines must be wired
to the external load control device. The circuit-breaker auxiliary contact will then
be connected to this device and not to the 2300E.

Power Supply (Terminals 48–50)

Run the power leads directly from the power source to the control, connecting the
negative lead to terminal 49, and the positive lead to terminal 48. Pin 50 is
provided as an optional Physical Earth (PE) wire landing point in addition to the
PE Ground stud, in case the particular installation requires a PE wire to be run
with dc power. Either both grounds must be connected or just the PE stud
connected to the cabinet/chassis, as Physical Earth though a 30 cm long by
13 mm wide (12 inches long, ½ inch wide) or shorter flat hollow braid or
comparable surface area wire, the ratio of copper surface to length may be used
to provide shorter smaller grounding wires.

When power is applied, the 2300E begins performing internal memory tests to
‘boot-up’ the processor, which takes approximately 2 seconds to complete. The
CPU Status LED between terminals 30 and 31 remains on during this boot-up.
The control will remain in I/O lock and will not control the prime mover until the
boot-up is complete. For systems requiring fast start functions, it will be
necessary to continuously power the 2300E.

DO NOT attempt to start the prime mover while the CPU Status LED
is RED.
DO NOT apply power to the control at this time. Applying power
before a control is completely connected may damage the control.

The 18–36 Vdc input power must be supplied from a power

supply/battery charger certified to IEC standard with SELV (Safety
Extra Low Voltage) classified output. The installer should properly
size wiring and fusing for the input power and PT/CT circuits.

Discrete Inputs (Terminals 34–41)

Discrete inputs are the switch or contact input commands to the 2300E control.
They interact in such a way as to allow engine control and power management
under a variety of conditions. (Note double pole configuration below for critical
I/O going between points physically > 30 m in length apart.)

The following example is using the default logic for the discrete inputs. Positive
Voltage is supplied to the discrete input terminal when an input switch or relay
contact closes. This will cause the input state for that discrete input to be
“TRUE”. The input terminal will be open circuited when the input switch or relay
contact opens. This will cause the input state for that discrete input to be
“FALSE” . When the input switch or relay contact is closed, the voltage supplying
the discrete inputs should be present from the appropriate discrete input
(terminal 34, 35, 36, 37, 38, 39, 40, or 41) to terminal 33 (common). Terminal 33
is the common return path for all of the discrete input channels. A lower voltage
indicates that the switch contacts have too high a resistance when closed and
should be replaced. These terminals must be isolated from ground.

12 Woodward
Manual 26691 2300E Digital Control
In systems that provide an external low voltage source to power the 2300E
control, the discrete inputs may be powered by this external low voltage. The
voltage source used must be capable of supplying 100 mA at a voltage level of
18 to 36 Vdc. Connect the external low voltage source negative to terminal 33(–).
Connect the external low voltage source positive to the appropriate input switch
or relay contact and connect the mated switch or relay contact to the
corresponding discrete input terminal on the 2300E control.

In systems where the external low voltage dc power is not appropriate, the
discrete inputs may be powered by the internal 24 Vdc Discrete Input Power
source at terminal 31 and 32. This source is capable of supplying 100 mA at a
voltage level of 24 Vdc. Connect the internal 24 Vdc voltage source positive from
terminal 31 to the appropriate input switch or relay contact, and connect the
mated switch or relay contact to the corresponding discrete input terminal on the
2300E control. Assure that a connection exists between terminal 32 and terminal
33 when using the internal Discrete Input Power. Do not power other devices
with the internal discrete input power source, and assure that the switch or relay
contacts used are isolated from any other circuit or system. The internally
provided contact wetting voltage may not be used for anything other than DI
Contact wetting; it is dedicated to this function.

Discrete inputs with cable lengths where the end points are
physically greater than 30 meters apart and which are used for
critical functions, such as emergency stop, should not be floated in
either an on or off state. These inputs should be switched to either
+24 Vdc or ground, never floated or tied to reference with a resistor.

The discrete inputs are capable through software programming to

change the logic or state of the input. Please verify the state of your
input before starting the engine.

Actuator Output (Terminals 13–15)

The actuator wires connect to terminals 13(+) and 14(–). Use shielded wires with
the shield connected to terminal 15 (chassis). Do not connect the shield to the
actuator or any other point. The shield must have continuity the entire distance to
the actuator, and must be insulated from all other conducting surfaces. Refer to
the manuals listed in the “References” table for additional information on actuator
installation.

The current range to the actuator output is configured in software for a

0–200 mA, 4-20 mA, 0–20 mA.

Analog Inputs (Terminals 19–24)

Connect input wiring to terminals 19(+), 20(–), and 21(shield) to use Analog Input
#1 and connect input wiring to terminals 22(+), 23(–), and 24(shield) to use
Analog Input #2.

The type of the analog inputs can also be chosen from one of the following
options:
 4–20 (mA)
 0–5 (V)
 ±2.5 (V)

Woodward 13
2300E Digital Control Manual 26691

Speed Sensor (Terminals 25-30)

To sense speed, the control accepts signals from a passive magnetic pickup unit
(MPU) mounted off a gear connected or coupled to the turbine’s rotor. Connect
the MPU speed sensor to terminals 25, 26, and 27(shield) or 28, 29, and 30
(shield). Verify that the input’s shield wire has continuity its entire distance to the
input sensor and is insulated from all other conducting surfaces.

This input is limited to a frequency range of 100–24 950 Hz and a voltage range
of 1.7–35 Vac. (The MPU voltage at the 2301E must be above 2.7 Vac in case of
a signal above 13 000 Hz.)

With proper MPU, gear size and MPU-to-gear clearance, speed measurement
should be capable down to 100 Hz. Check the speed sensor for visible damage.
Standard MPU clearance is recommended to be between 0.25 and 1.0 mm
(0.010 and 0.040 inch) at the closest point. Make sure that the gear has less than
0.5 mm (0.020 inch) diametric run out. See manual 82510, Magnetic Pickups and
Proximity Switches for Electronic Governors.

Relay Driver Outputs (Terminals 42, 43, & 44–48)

The 2300E contains four discrete output driver channels. The discrete outputs
are low-side drivers with a maximum output current of 200 mA. The discrete
output drivers are not isolated from each other, and are powered by an external
+12 Vdc or +24 Vdc source connected at terminals 42(+) and 43(–). The Relay
Driver Output pins are: #1(44), #2(43), #3(46), and #4(47). The relay driver
section is isolated from the internal power supplies of the 2300E control, but all
drivers share a single common.
 Relay drivers can be used as a PWM actuator drivers or a relay drivers.
 When configured as a PWM, power wiring configuration is dictated.

Power wiring for using the PWM output function is required to be local and
dedicated, only located on the engine skid or relatively close to the control and
PWM load. The power connected to control 48(+) and 49(–) terminals must also
be used for the relay driver external Vdc source connected at terminals 42(+) and
43(–). In addition, the PWM load device power must also be from the same
source as the power connected to control terminals 48(+) and 49(–-).

The PWM functionality is limited to use on skid applications. When

PWM drivers are used, the 2300E must be located on the same power
bus as the driven circuitry. The 2300E and the device being driven
need to be co-located on the same engine. In addition, the Power bus
input for the 2300E must be used to power the DO signals.

4–20 mA Output (Terminals 16–17)

Connect readout wiring to terminals 16(+), 17(–), and 18(shield) to use the
control’s 4–20 mA Analog Output. Note that these terminals must be isolated
from ground.

Verify that the output’s shielded wire has continuity its entire distance to the output
device and is insulated from all other conducting surfaces. This current driver
based output is designed to drive into impedances of up to 250 Ω. This output is
not isolated from the other control inputs and outputs, thus an isolation device may
be required with this output if the device being interfaced to is not isolated.
14 Woodward
Manual 26691 2300E Digital Control

Communication Ports
The control’s two serial communication ports are used to configure and service
the unit. These ports are on a common return and are isolated ports.

The RS-232 serial communication service port communicates using either the
2300E Toolkit Service Tool or the Control Assistant software. Refer to Figure 2-2
for plant wiring information.

The RS-422 serial communication port communicates using a Modbus RTU

protocol, functioning as a Modbus Slave device, via a RS-422 driver. The 2300E
can be fully operated and many values monitored via Modbus communications.
Alternatively Modbus communications can be used to interface with a PLC or
plant DCS. Refer to Figure 2-3 for plant wiring information.

The communication ports must be connected with an approved

jacketed serial communication cable. The connector must be
secured to the 2300E to prevent contact with other circuits.

RS-232
See Figure 2-2 for cable connection.

RXD TXD

TXD RXD

2301E
50

Figure 2-2. RS-232 Pin assignments for Serial Communication Cable

Woodward 15
2300E Digital Control Manual 26691

RS-422
See Figure 2-3 for termination and cable connection example.

2301E

Figure 2-3. Typical RS-422 Communications Connections

Termination
For RS-422, termination should be located at the receiver when one or more
transmitters are connected to a single receiver. When a single transmitter is
connected to one or more receiver, termination should be at the receiver farthest
from the transmitter. Figure 2-4 is an example.

Figure 2-4. RS-422 Terminator Locations

Grounding and Shielding

The RS-422 specifications state that a common/RS-422 ground wire is needed if
there is no other ground path between units. The RS-422 on the 2300E is
isolated, so there is no other path for common other than wiring to the pin.

The preferred method for common wiring is to include a separate wire in the
cable that connects the circuit grounds at each port together with a dedicated
wire inside the cable shield.

16 Woodward
Manual 26691 2300E Digital Control
If the total cabling is > 30 m (typical), the preferred shield connection is to
connect the shield to earth ground (chassis) at one point (most critical port),
using a capacitor to terminate the shield at the remaining ports. If the total
cabling is < 30 m, connect the shield directly to the earth ground at each port.

The alternate, less robust, way to connect shield and common is to connect all
circuit grounds/commons at each port to the shield instead of a separate wire,
and then connect the shield to earth ground at one point (most critical port), using
a capacitor to terminate the shield at the remaining ports.

If there are non-isolated nodes on the party line, connect the shield to earth
ground at a non-isolated node, not at an isolated node. Figures 2-5 and 2-6
illustrate these cabling approaches.

Non-isolated nodes may not have a signal ground available. If signal

ground is not available, use the alternate wiring scheme in Figure 2-6
with the signal ground connection removed on those nodes only.

Figure 2-5. Preferred Multipoint Wiring Using Shielded Twisted-pair Cable with a
Separate Signal Ground Wire

The SG (signal ground) connection is not required if signal ground is

unavailable.

Woodward 17
2300E Digital Control Manual 26691

Figure 2-6. Alternate Multipoint Wiring Using Shielded Twisted-pair Cable without
a Separate Signal Ground Wire

CAN Communication Port (Terminals 51–54)

There is one CAN port for distributed I/O, distributed control, and Human
Machine Interface (HMI) purposes. The CAN cabling is wired to Common
terminal (51), CAN_LO terminal (52), Shield Terminal (53), & CAN_HI terminal
(54). Communications is controlled via GAP rate groups and is deterministic.
Care should be given to the choice of devices used on each network. HMI
devices should generally not be put on distributed control networks with real time
control requirements.

The CAN Port is electrically isolated from all other circuits in the 2300E, requiring
a common to be wired between this port and other ports on the CAN network.
CAN common needs to be sent with the signal wires, but can be separately
shielded. Isolation used on this port is SELV rated with respect to product safety
requirements.

The CAN shield pin is AC coupled to chassis at the 2301E control. The shield
must be directly connected to protective earth ground at one and only one point
in the CAN network.

The CAN Port supports SAE J1939 and CiA CANopen network protocols.

Transceiver type CAN 2.0B

Isolation voltage 500 Vdc SELV rated (port #1)
500 Vdc hazardous live rated (ports #2 and #3)
Baud rates supported 125, 250, 500, and 1000 kbps
Protocols supported CANopen, SAE J1939

Table 2-1. CAN Specification

18 Woodward
Manual 26691 2300E Digital Control

Recommended Bulk Cable

Use shielded CAN compatible cabling for all CAN networks. “DeviceNet” cable is
a good example of CAN cable for use with isolated CAN ports, but caution should
be used as most DeviceNet cables are not rated for on-engine temperatures. It is
typically suitable for wiring between switchgear cabinets and an engine junction
box where the temperatures are lower. Also, both the “thick” and “thin” DeviceNet
cables have wire insulation and wire size that is not compatible with the 2300E
connectors.

When using DeviceNet cables outside a vibration damped enclosure, use the
“Thick” or “Trunk” cable. The “Thin” or “Drop” cables have very small wire sizes
that fatigue easily. Below are two DeviceNet CAN cables that are compatible with
isolated CAN use off engine.

Part Number Description

Belden 7896A PVC, 18 AWG shielded data pair, 16 AWG shielded power pair.
NEC/UL TC-ER, CSA I/II, A/B.
Lapp Cable Halogen free, 18 AWG shielded data pair, 15 AWG shielded power
2710-250 pair. UL and CSA approved

Below are CAN cables that are compatible with isolated CAN use rated at high
temp.

Part Number Description

BELDEN WWD p/n 2008-1512, Teflon, 22 AWG, 1.5 pair shielded, UL CL3,
YR58684 FT1 Flame, 120 Ohm characteristic impedance, 11 pF/ft, ,

“J1939” cable is a good example of CAN cable for use with un-isolated CAN
ports and for on-engine use. This cable does not include the extra wire used to
carry the common reference Raychem makes a compatible cable as do many
other manufacturers.

Part Number Description

Raychem Cheminax, J1939-11, 0.75 mm², 120 Ω characteristic impedance,
2019D0301 10.5 pF/ft, 74% velocity of propagation

The basic cable requirements are listed below. When selecting other cables, be
sure they meet these requirements.

Table 2-2. Cable Specification

Woodward 19
2300E Digital Control Manual 26691
Figure 2-7 illustrates what the DeviceNet cables will look like including shielding.
There is a foil tape around each conductor pair as well as a braided shield
around the entire group of conductors. J1939 cables will not include the DC
power pair and related extra shielding.

Figure 2-7. CAN Cable Cross-Section

Network Construction
There are several different ways to physically connect devices on a CAN
network. Woodward recommends that multi-drop networks be constructed using
either a “daisy chain” configuration (also called zero length drop line) or a
“backbone” with very short drop lines for best performance. In a daisy chain
configuration, wires are run from one device to the next device without drop lines.

In a backbone with stubs configuration, a main trunk line is run between the two
devices that are physically farthest apart and have the physically longest cable.
Stub lines are run from the intermediate devices to the trunk line. Stubs should
be kept as short as possible and may never exceed 6 m (20 ft). As shown in
Figure 2-8, it is acceptable to mix both methods on the same network.

A daisy chain (zero drop length) connection is not feasible at the 2300E connection
due to the sealed connector design. The next best alternative is to use a very short
drop line from the trunk into the 2300E. Special ‘T’ connectors (Tap in the diagram
above) are available from multiple manufacturers to ease the wiring harness
manufacture. Also available from the same manufacturers, are termination
resistors that plug directly into the ‘T’ connectors for the network ends.

Due to the port isolation on this port, a common wire is needed between all units
on the network. The preferred method for isolated ports is to include a separate
wire within the CAN cable. This keeps the communications and ground reference
at the same potential at all times. The DeviceNet cables listed in this manual
have the common wire feature.

20 Woodward
Manual 26691 2300E Digital Control

Node Node Terminating

Multiple Node
Branching Resistor
Multi-Port
Drop Line Tap

Node
Node
Multiple Node
Node Daisy Chain
Node Drop Line Node Drop Line
Terminating Tap Multi-Port Tap
Resistor
Node

Node Node
Node
Drop Line

Node
Node Node
{
{
VIS-199
Zero Length Drop Line Short Drop Lines (6 m / 20 ft)
2012-10-25

Figure 2-8. CAN System Wiring Example

Non-isolated nodes may not have a signal common available for connection. If a
signal common is not available, use the alternate wiring scheme of connecting
the CAN ground wire from the isolated nodes to the B- terminal at a non-isolated
node. B– is typically the signal reference for CAN if isolation is not provided. The
CAN common wire should not be grounded. The only exception to this rule is if
one of the devices on the link is not isolated, then connecting CAN common to
B– on that device may create a connection to the B- power supply ground,
assuming the power supply has a connection to ground. Otherwise, no other
connections to ground or physical earth should be provided.

Termination
It is necessary to terminate the network to prevent interference caused by signal
reflections. Depending on network length, many CAN networks will not operate
without proper termination.

In order to allow the possibility of removing and inserting a unit onto a running
network, the CAN termination network is not included inside the 2300E control.
An external CAN termination network must be provided.

As a rule, no matter how many units are on a network, there should never be
more than two network terminations installed. Termination resistors must be
installed only for the two units that are at the physical ends of the network.
Terminating more than two units can overload the network and stop all
communications.

Woodward 21
2300E Digital Control Manual 26691
Termination is a simple 121 Ohm, ¼ watt, 1% metal film resistor placed between
CAN high and CAN low terminals at the two end units, a differential termination.
Do not connect the termination resistor to anything besides the CAN high and
CAN low wires.

Shielding
Shielded CAN cable is required between the 2300E and any other devices.
Unshielded or improperly shielded cables are likely to cause communication
problems and unreliable control operation. Improper shield termination to ground
can also cause communication problems and unreliable control operation.

The standard for CAN networks is that each device will have an ac-coupled
shield connection (ac-coupled: connected through a capacitor). Additionally a
single direct network shield ground location may be provided in some situations.
Typically the direct shield grounding location does not have to be at a unit
connector; it can be any convenient place in the system, and is recommended to
be used.

The 2300E has been constructed so that the CAN port shield connection is ac
coupled to chassis ground, chassis ground must be tied directly to earth ground.

The CAN port may also have the CAN cable’s shield tied directly to ground, but
care must be taken in how this is accomplished. It is expected and recommended
that each network have one direct connection to chassis ground. The chassis
grounding point should be chosen nearest the most critical device on the network.

CAN Port Wiring

The CAN Port may be used for off-engine wiring to control rooms. It is electrically
isolated from all other circuits in the 2300E. Isolation used on this port is SELV
rated for product safety requirements.

Wiring length restrictions depend on the baud rate used. Table 2-3 is appropriate
for CANopen, at the 4 supported baud rates. The “Trunk” is the length between
the two units that are at the physical ends of the network. The “Cumulative Drop”
is the added length of all drop wires from the trunk to the devices. This only
applies to “backbone” type networks since Daisy chain networks do not have
drops. The “Maximum Drop” is the maximum allowed for any 1 drop. Any network
configured for 1000 kbps should use the daisy chain topology to reduce the
possibility of reflections.

SAE J1939 protocol is restricted to 250 kbps and the SAE J1939 standard limits
wiring distances to 40 meters, when un-isolated controls are connected on the
link.

The limits below are the maximum allowed by the CAN standard. To maintain a
high level of reliability in practice, shorter lengths are highly recommended.

Table 2-3. CAN-1 Wiring Limitations

22 Woodward
Manual 26691 2300E Digital Control

Installation Check-out Procedure

With the installation completed as described in this section, perform the following
check-out procedure.

Visual Inspection

1. Check the linkage between the actuator and the prime mover for looseness
or binding. Refer to the appropriate actuator manual and to manual 25070,
Electric Governor Installation Guide, for additional information on the linkage.

The actuator lever should be near but not at the minimum position
when the fuel or steam rack is at the minimum position. If the
actuator lever gets to its minimum position before completely
shutting off fuel or steam, the control may not be able to shut down
the prime mover, causing damage to equipment or injury or death.

2. Check for correct wiring in accordance with the plant wiring diagram, Figure 1-2.
3. Check for broken terminals and loose terminal screws.
4. Check the speed sensor for visible damage. Check the clearance of the
magnetic pickup between the gear and the sensor, and adjust if necessary.
Clearance should be between 0.25 and 1.0 mm (0.010 and 0.040 inch) at the
closest point. Make sure the gear has less than 0.5 mm (0.020 inch)
diametric run-out. See manual 82510, Magnetic Pickups and Proximity
Switches for Electric Governors.

Woodward 23
2300E Digital Control Manual 26691

Chapter 3.
GAP Software and Communication
Procedures

Introduction

An unsafe condition could occur with improper use of these software

tools. Only trained personnel should have access to these tools.

This chapter contains information on the GAP Graphical Application Programmer

software and the use of Woodward’s Control Assistant software tool.

GAP Software
Woodward’s GAP 3.x is a Windows based software program that allows controls
engineers to create block format application programs for the 2300E. Once the
control logic is entered using the program’s graphical programming environment,
the GAP software compiler function generates code that runs in the control.

GAP software blocks are written in C code, which is a transportable language,

allowing it to be used on many different hardware platforms. Because of this
feature, the same control logic software that has been used and proven in
thousands of controls is available for use in the creation of future controllers,
without introducing system bugs. For ease of learning and use, the GAP software
diagram entry screen has the look and feel of several software simulator tools
familiar to many control engineers.

The GAP software package is a mature programming package, providing

revision control, security, and code import/export tools to facilitate program
management and code re-use.

The block format allows a controls engineer to re-use a library of known control
blocks, string them together with other known control blocks, and develop a
software program to match customer needs. Through years of use, GAP has
proven to be an extremely successful software package that can be field
modified, even after installation or based on changing customer needs.

An additional advantage incorporated into GAP is the unique rate group structure
on which it operates. Variable execution time blocks have been avoided. This
means that under an unanticipated set of conditions (system upset), the processor
will not become overburdened, and will have time to complete its assigned tasks.
Only with predictable execution times can a multitasking operating system have a
guaranteed update rate. Software tasks may be programmed to run every 5
milliseconds, 10 ms, 20 ms, etc., and all tasks will run simultaneously.

This versatile software program is structured to allow OEMs or other engineering

companies the capability of creating or controlling their own fuel control algorithms.

24 Woodward
Manual 26691 2300E Digital Control
The 2300E has the following specifications:

 CPU: MPC5553
 Clock Speed: 70 Mhz
 Flash Memory - 1.5 Mbytes
o Application software file size
o Boot software file size
o Service Interface Definition (SID) software file size
 RAM Memory – 68 Kbytes
o Rate Group Allocations
o Variables
 EE Memory – 16.0 Kbytes
o Saved Tunables / Variables
o Event Managers

The 2300E is a capable system but certain considerations need to be made

when architecting the application to ensure that system resources are used in the
most efficient manner. From the initial 68 Kbytes of RAM, an application defining
the Inputs and Outputs and operating system overhead, the available RAM is 45
Kbytes.

GAP uses a Rate Group structure of the following times: 5 mSec, 10 mSec, 20
mSec, 40 mSec, 80 mSec, and 160 mSec. When adding a Rate Group to the
application, the software will allocate approximately 1.6 Kbytes of overhead for
these Rate Groups. Therefore adding all six Rate Groups will subtract 9.6 Kbytes
of the available RAM of 45 Kbytes, leaving about 35 Kbytes. A suggestion when
programming the 2300E would be to not use all of the Rate Groups available. In
the Standard 2301E application, only two rate groups were used 5 mSec and 80
mSec. The application size is 200 Kbytes, the Total Load on the microprocessor is
10% and the RAM Available is at 7.3 Kbytes. The key is to manage the application
so that the microprocessor is never loaded above 90% and the available RAM
should be monitored carefully as it falls below 2 Kbytes. Be mindful when adding
communications, as that functionality will consume additional RAM as well. Certain
blocks in GAP can also use up more RAM, for instance a Curves Block, the Data
Log Block or the Event Manager block. The Status_2301E block has this
information available: RAM_AVAIL, FLASH_AVAIL, and EE_AVAIL.

If an application file is loaded that exceeds the RAM size limitation or causes an
internal system fault, and causes the control to shut down, there is a backdoor boot
up process. Shorting TP6 to TP8 and re-powering the control causes the control to
automatically go into the boot mode. This boot mode allows you to download a
corrected application.

Woodward 25
2300E Digital Control Manual 26691

Figure 3-1. Boot Mode Jumpers

Control Assistant PC Interface

Woodward Control Assistant or Servlink OPC Server can be used to download a
new application GAP compiled program into the 2300E.

The 2300E default baud rate is 115200, which can be entered in the SOS
Servlink OPC Server window or it will automatically detect the correct baud rate.

26 Woodward
Manual 26691 2300E Digital Control

Chapter 4.
Product Support and Service Options

Product Support Options

If you are experiencing problems with the installation, or unsatisfactory
performance of a Woodward product, the following options are available:
1. Consult the troubleshooting guide in the manual.
2. Contact the OE Manufacturer or Packager of your system.
3. Contact the Woodward Business Partner serving your area.
4. Contact Woodward technical assistance via email
(EngineHelpDesk@Woodward.com) with detailed information on the
product, application, and symptoms. Your email will be forwarded to an
appropriate expert on the product and application to respond by telephone
or return email.
5. If the issue cannot be resolved, you can select a further course of action to
pursue based on the available services listed in this chapter.

OEM or Packager Support: Many Woodward controls and control devices are
installed into the equipment system and programmed by an Original Equipment
Manufacturer (OEM) or Equipment Packager at their factory. In some cases, the
programming is password-protected by the OEM or packager, and they are the best
source for product service and support. Warranty service for Woodward products
shipped with an equipment system should also be handled through the OEM or
Packager. Please review your equipment system documentation for details.

Woodward Business Partner Support: Woodward works with and supports a

global network of independent business partners whose mission is to serve the
users of Woodward controls, as described here:
 A Full-Service Distributor has the primary responsibility for sales, service,
system integration solutions, technical desk support, and aftermarket
marketing of standard Woodward products within a specific geographic area
and market segment.
 An Authorized Independent Service Facility (AISF) provides authorized
service that includes repairs, repair parts, and warranty service on Woodward's
behalf. Service (not new unit sales) is an AISF's primary mission.
 A Recognized Engine Retrofitter (RER) is an independent company that
does retrofits and upgrades on reciprocating gas engines and dual-fuel
conversions, and can provide the full line of Woodward systems and
components for the retrofits and overhauls, emission compliance upgrades,
long term service contracts, emergency repairs, etc.

A current list of Woodward Business Partners is available at

www.woodward.com/directory.

Product Service Options

Depending on the type of product, the following options for servicing Woodward
products may be available through your local Full-Service Distributor or the OEM
or Packager of the equipment system.
 Replacement/Exchange (24-hour service)
 Flat Rate Repair
 Flat Rate Remanufacture

Woodward 27
2300E Digital Control Manual 26691
Replacement/Exchange: Replacement/Exchange is a premium program
designed for the user who is in need of immediate service. It allows you to
request and receive a like-new replacement unit in minimum time (usually within
24 hours of the request), providing a suitable unit is available at the time of the
request, thereby minimizing costly downtime.

This option allows you to call your Full-Service Distributor in the event of an
unexpected outage, or in advance of a scheduled outage, to request a
replacement control unit. If the unit is available at the time of the call, it can
usually be shipped out within 24 hours. You replace your field control unit with
the like-new replacement and return the field unit to the Full-Service Distributor.

Flat Rate Repair: Flat Rate Repair is available for many of the standard
mechanical products and some of the electronic products in the field. This
program offers you repair service for your products with the advantage of
knowing in advance what the cost will be.

Flat Rate Remanufacture: Flat Rate Remanufacture is very similar to the Flat
Rate Repair option, with the exception that the unit will be returned to you in “like-
new” condition. This option is applicable to mechanical products only.

Returning Equipment for Repair

If a control (or any part of an electronic control) is to be returned for repair,
please contact your Full-Service Distributor in advance to obtain Return
Authorization and shipping instructions.

When shipping the item(s), attach a tag with the following information:
 return number;
 name and location where the control is installed;
 name and phone number of contact person;
 complete Woodward part number(s) and serial number(s);
 description of the problem;
 instructions describing the desired type of repair.

Packing a Control
Use the following materials when returning a complete control:
 protective caps on any connectors;
 antistatic protective bags on all electronic modules;
 packing materials that will not damage the surface of the unit;
 at least 100 mm (4 inches) of tightly packed, industry-approved packing material;
 a packing carton with double walls;
 a strong tape around the outside of the carton for increased strength.

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.

Replacement Parts
When ordering replacement parts for controls, include the following information:
 the part number(s) (XXXX-XXXX) that is on the enclosure nameplate;
 the unit serial number, which is also on the nameplate.

28 Woodward
 Manual 26691 2300E Digital Control

Engineering Services
Woodward’s Full-Service Distributors offer various Engineering Services for our
products. For these services, you can contact the Distributor by telephone or by
email.
 Technical Support
 Product Training
 Field Service

Technical Support is available from your equipment system supplier, your local
Full-Service Distributor, or from many of Woodward’s worldwide locations,
depending upon the product and application. This service can assist you with
technical questions or problem solving during the normal business hours of the
Woodward location you contact.

Product Training is available as standard classes at many Distributor locations.

Customized classes are also available, which can be tailored to your needs and
held at one of our Distributor locations or at your site. This training, conducted by
experienced personnel, will assure that you will be able to maintain system
reliability and availability.

Field Service engineering on-site support is available, depending on the product

and location, from one of our Full-Service Distributors. The field engineers are
experienced both on Woodward products as well as on much of the non-
Woodward equipment with which our products interface.

For information on these services, please contact one of the Full-Service

Distributors listed at www.woodward.com/directory.

Contacting Woodward’s Support Organization

For the name of your nearest Woodward Full-Service Distributor or service facility,
please consult our worldwide directory at www.woodward.com/directory, which
also contains the most current product support and contact information.

You can also contact the Woodward Customer Service Department at one of the
following Woodward facilities to obtain the address and phone number of the
nearest facility at which you can obtain information and service.

Products Used in Products Used in Products Used in Industrial

Electrical Power Systems Engine Systems Turbomachinery Systems
Facility --------------- Phone Number Facility --------------- Phone Number Facility --------------- Phone Number
Brazil ------------- +55 (19) 3708 4800 Brazil ------------- +55 (19) 3708 4800 Brazil ------------- +55 (19) 3708 4800
China ----------- +86 (512) 6762 6727 China ----------- +86 (512) 6762 6727 China ----------- +86 (512) 6762 6727
Germany: Germany ------ +49 (711) 78954-510 India --------------- +91 (124) 4399500
Kempen---- +49 (0) 21 52 14 51 India --------------- +91 (124) 4399500 Japan---------------+81 (43) 213-2191
Stuttgart - +49 (711) 78954-510 Japan---------------+81 (43) 213-2191 Korea ---------------+82 (51) 636-7080
India --------------- +91 (124) 4399500 Korea ---------------+82 (51) 636-7080 The Netherlands--+31 (23) 5661111
Japan---------------+81 (43) 213-2191 The Netherlands--+31 (23) 5661111 Poland -------------- +48 12 295 13 00
Korea ---------------+82 (51) 636-7080 United States -----+1 (970) 482-5811 United States -----+1 (970) 482-5811
Poland -------------- +48 12 295 13 00
United States -----+1 (970) 482-5811

Woodward 29
 2300E Digital Control Manual 26691

Technical Assistance
If you need to contact technical assistance, you will need to provide the following information.
Please write it down here before contacting the Engine OEM, the Packager, a Woodward
Business Partner, or the Woodward factory:

General
Your Name

Site Location

Phone Number

Fax Number

Prime Mover Information

Manufacturer

Engine Model Number

Number of Cylinders
Type of Fuel (gas, gaseous, diesel,
dual-fuel, etc.)
Power Output Rating
Application (power generation, marine,
etc.)
Control/Governor Information
Control/Governor #1

Woodward Part Number & Rev. Letter

Control Description or Governor Type

Serial Number

Control/Governor #2

Woodward Part Number & Rev. Letter

Control Description or Governor Type

Serial Number

Control/Governor #3

Woodward Part Number & Rev. Letter

Control Description or Governor Type

Serial Number

Symptoms
Description

If you have an electronic or programmable control, please have the adjustment setting positions or
the menu settings written down and with you at the time of the call.

30 Woodward
 Manual 26691 2300E Digital Control

Appendix A.
2300E Control Specifications
Woodward Part Numbers:
8273-1011 2300E Load Sharing and Speed Control, 24 Vdc input,
Ordinary Locations
8273-1012 2300E Load Sharing and Speed Control, 24 Vdc input,
Hazardous Locations
8928-5014 Control Assistant
8928-1303 2300E Toolkit Service Tool

Power Supply Rating 18–36 Vdc (SELV)

Power Consumption less than or equal 20 W nominal
Maximum Altitude 3000 m / 10 000 feet
Weight 1.75 kg / 3.86 lb

Input Supply Voltage Typical Input Supply Current

18 V 589 mA
24 V (nominal) 431 mA
32 V 319.6 mA

Inrush Current 7 A for 0.1 ms

Steady State Speed Band ±0.25% of rated speed
Magnetic Pickup 100–25 000 Hz (300–3600 rpm)
3-phase Current Transformer Burden 3-7 A rms at full load, CT input burden at full load is 0.1 VA per
phase
3-phase PT Burden 90–240 Vac line-to-line, 45–66 Hz. PT input burden is between
1.5 VA and 1.7 VA per phase at 240 Vac, and between 0.4 VA
and 0.5 VA per phase at 120 Vac.
Discrete Inputs (8) 3 mA at 24 Vdc, impedance approximately 5.2 k
Remote Reference Input 4–20 mA, 1–5 Vdc
SPM-A Input ±2.5 Vdc, externally powered
Analog Output #1 0–20 mA, 4–20 or 0–200 mA to actuator
Analog Output #2 0–20 or 4–20 mA, internally powered, power by external +12
Vdc or +24 Vdc source, max output current
200 mA
Discrete Output Ratings Low-side drivers with overvoltage protection, 200 mA
maximum
Communication Ports RS-232: 9-pin connector, RS-422: 9-pin connector, 9600 to
115 200 baud, full duplex
Ambient Operating Temperature –40 to +70 °C (–40 to +158 °F)
Storage Temperature –40 to +105 °C (–40 to +221 °F)
Humidity Lloyd’s Register of Shipping, Test Specification No. 1, 1996,
Humidity Test 1, 95% at +20 to +55 °C (+68 to +131 °F)
condensing
Mechanical Shock US MIL-STD 810C, Method 516.2, Procedure I (basic design
test), Procedure II (transit drop test, packaged), Procedure V
(bench handling)
Equipment Classification Class 1 (grounded equipment)
EMC Immunity Environment Marine Type Tests & EN 61000-6-2
IEC 61000-4-2, ESD ±6 kV/±8 kV
IEC 61000-4-3, RS 10 V/m + AM 80-3000 MHz
IEC 61000-4-4, EFT ±2 kV Power & I/O
IEC 61000-4-5, Surge ±1 kV I/O CM, ±0.5/±1.0 kV dc power
DM/CM, & ±1.0/±2.0 kV ac power DM/CM
IEC 61000-4-6, CRF 10 Vrms + AM 0.150-80 MHz.
Marine Type Test CLFI 3.6 Vrms or 2 W, 50 Hz to 20 kHz.
WWD (Marine) CLFI 3.6-0.36 Vrms or 2.0–0.2 W, 20 kHz to
150 kHz.
EMC Emission Environment Marine Type Tests & EN 61000-6-4
Marine General Distribution Zone per CISPR 16
EC EN 61000-6-4 Industrial Limits (Class A)

Woodward 31
2300E Digital Control Manual 26691

Revision History

Changes in Revision E—
 Updated Regulatory Compliance section
 Revised Declaration of Conformity

Changes in Revision D—
 Added information clarifying the memory structure of the 2300E.
 Revise Australia and New Zealand compliance information

Changes in Revision C—
 Corrected 3-phase PT Burden in Specifications section to 90–240 Vac line-
to-line, 45–66 Hz

Changes in Revision B—
 Added new Marine certifications (BV, NKK, CCS)
 Added product weight

Changes in Revision A—
 Removed references to configurable inputs/outputs

32 Woodward
Manual 26691 2300E Digital Control

Declarations

Woodward 33
 We appreciate your comments about the content of our publications.
Send comments to: icinfo@woodward.com

Please reference publication 26691E.

PO Box 1519, Fort Collins CO 80522-1519, USA

1000 East Drake Road, Fort Collins CO 80525, USA
Phone +1 (970) 482-5811
Email and Website—www.woodward.com

Woodward has company-owned plants, subsidiaries, and branches,

as well as authorized distributors and other authorized service and sales facilities throughout the world.
Complete address / phone / fax / email information for all locations is available on our website.