Woodward ProAct Digital Plus User manual

Product Manual 26112
(Revision W, 7/2016)
Original Instructions
ProAct™ Digital Plus Electric Actuator
with Integral Driver
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 Out-of-date translations are marked with .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 26112
Copyright © Woodward 2001–2016
All Rights Reserved

Manual 26112 ProAct Digital Plus
Woodward i
Contents
WARNINGS AND NOTICES..........................................................................IV
ELECTROSTATIC DISCHARGE AWARENESS .................................................V
REGULATORY COMPLIANCE ......................................................................VI
CHAPTER 1. GENERAL INFORMATION..........................................................1
Introduction.............................................................................................................1
How to Use This Manual ........................................................................................1
Description..............................................................................................................1
Controller Overview................................................................................................4
Mechanical Setup...................................................................................................4
CHAPTER 2. HARDWARE INSTALLATION......................................................9
Unpacking...............................................................................................................9
Mounting Location ..................................................................................................9
Actuator Application Guidelines ...........................................................................10
Mounting...............................................................................................................10
Actuator Selection and Temperature Monitoring Guidelines................................10
Fuel Position Stops...............................................................................................13
Linkage.................................................................................................................13
CHAPTER 3. WIRING ................................................................................19
Electrical Connections..........................................................................................19
ProAct Inputs/Outputs ..........................................................................................27
Communication Hardware Descriptions...............................................................29
CHAPTER 4. SETUP,CALIBRATION,AND ADJUSTMENTS.............................31
General Description..............................................................................................31
Setup ....................................................................................................................31
Calibration.............................................................................................................32
Adjustments..........................................................................................................32
CHAPTER 5. DESCRIPTION OF OPERATION ................................................33
Position Control ....................................................................................................33
Position Demand ..................................................................................................33
Multiple Demands.................................................................................................34
Driver Output and Position Feedback ..................................................................34
Drive Current Limitations......................................................................................35
Current Limiting Based on Temperature..............................................................35
Communications...................................................................................................36
CAN Communications..........................................................................................36
Service Port (RS-232) Communications ..............................................................37
Service Tool..........................................................................................................37
User Operating Modes .........................................................................................38
CHAPTER 6. DIAGNOSTICS .......................................................................40
General Information..............................................................................................40
Power-up Diagnostics...........................................................................................41
CHAPTER 7. CAN DETAILS ......................................................................50
Overview...............................................................................................................50
CAN Bit Timing.....................................................................................................50
Source Address/Harness Code Strategy .............................................................50
Configuration Strategy..........................................................................................50
CAN Extensions ...................................................................................................50
Diagnostics from ProAct Actuator ........................................................................53

ProAct Digital Plus Manual 26112
ii Woodward
Contents
Diagnostics/Events...............................................................................................53
Event Codes.........................................................................................................54
Transmission Rate................................................................................................55
Arbitration .............................................................................................................56
CHAPTER 8. SERVICE TOOL .....................................................................57
Description............................................................................................................57
Getting Started......................................................................................................60
Watch Window Numeric Format...........................................................................63
Using Watch Window ...........................................................................................63
Software Version Identification.............................................................................65
Watch Window Standard and Professional..........................................................65
CHAPTER 9. PROACT™PARAMETER SETUP.............................................66
Configure Mode....................................................................................................66
Configure Mode Parameters ................................................................................68
Adjusting User Stops and Dynamics....................................................................72
Adjusting and Testing Actuator Dynamics............................................................76
Service Mode Parameters....................................................................................79
Monitoring Application Parameters.......................................................................83
CHAPTER 10. TROUBLESHOOTING............................................................90
Introduction...........................................................................................................90
Troubleshooting Procedure ..................................................................................90
General System Troubleshooting Guide ..............................................................91
Mechanical Troubleshooting Guide......................................................................91
Electrical Troubleshooting Guide..........................................................................92
Performance Troubleshooting Guide....................................................................94
CHAPTER 11. PROACT™DIGITAL PLUS SPECIFICATIONS ..........................96
Environmental Specifications ...............................................................................96
Hardware Specifications.......................................................................................96
Electrical Specifications........................................................................................97
I/O Specifications..................................................................................................97
Software................................................................................................................99
CHAPTER 12. PRODUCT SUPPORT AND SERVICE OPTIONS.......................101
Product Support Options ....................................................................................101
Product Service Options.....................................................................................101
Returning Equipment for Repair.........................................................................102
Replacement Parts.............................................................................................102
Engineering Services..........................................................................................103
Contacting Woodward’s Support Organization ..................................................103
Technical Assistance..........................................................................................104
APPENDIX.PROACT™PROGRAM SUMMARY...........................................105
Configure Mode Settings....................................................................................105
Service Mode Settings........................................................................................105
Service Tool Passwords.....................................................................................106
Summary of Alarms and Shutdowns..................................................................106
REVISION HISTORY ................................................................................107
DECLARATIONS .....................................................................................108

Manual 26112 ProAct Digital Plus
Woodward iii
Illustrations and Tables
Figure 1-1a. ProAct Digital Plus Functional Overview ...........................................2
Figure 1-1b. ProAct Digital Plus Functional Overview ...........................................3
Figure 1-2. Driver Overview....................................................................................5
Figure 2-1. Temperature Monitoring Zone (model III shown)...............................11
Figure 2-2. Base Mount Actuator Selection Guidelines .......................................11
Figure 2-3. Flange Mount Actuator Selection Guidelines.....................................12
Figure 2-4. Fuel Stops..........................................................................................13
Figure 2-5a. ProAct Digital Plus Actuator Outline Drawing..................................15
Figure 2-5b. ProAct Digital Plus Actuator Outline Drawing..................................16
Figure 2-5c. ProAct Digital Plus Actuator Outline Drawing ..................................17
Figure 2-5d. ProAct Digital Plus Actuator Outline Drawing..................................18
Figure 3-1a. Control Wiring Diagram (blank cover)..............................................20
Figure 3-1b. Control Wiring Diagram (CAN only).................................................21
Figure 3-1c. Control Wiring Diagram (Digital Plus) ..............................................22
Figure 3-1d. Control Wiring Diagram (CAN only with External Run Enable) .......23
Figure 3-2. Representative I/O Schematic...........................................................24
Figure 3-3. Correct Wiring to Power Supply.........................................................26
Figure 3-4. Incorrect Power Supply Wiring...........................................................26
Figure 5-1. Controller Overview ...........................................................................33
Figure 5-2. Primary/Backup Position Demand State Machine.............................34
Figure 5-3. Current Limits.....................................................................................36
Figure 5-4. Operating Modes................................................................................37
Figure 5-5. Typical Service Tool Screen ..............................................................39
Figure 6-1. Typical Flash Code ............................................................................43
Figure 7-1. Typical Arbitration Field Example ......................................................56
Figure 8-1. Operating Modes................................................................................58
Figure 9-1. Configure Mode..................................................................................68
Figure 9-2. Configure Mode: Unit Setup...............................................................69
Figure 9-3. Configure Mode: Demand Setup .......................................................71
Figure 9-4. Min/Max Stops Relative to the Overall Travel....................................73
Figure 9-5. Electrical Stop Adjustments Relative to the Mechanical Min and Max
Stops................................................................................................74
Figure 9-6. Service Mode: Adjust User Stops......................................................75
Figure 9-7. Auto Stroke Mode Flowchart..............................................................77
Figure 9-8. Manual Stroke Mode Flowchart.........................................................78
Figure 9-9. Service Mode: Hardware Adjustments ..............................................80
Figure 9-10. Service Mode: Unit Status ...............................................................83
Figure 9-11. Service Mode: Position Control........................................................85
Figure 9-12. Service Mode: Status Error Alarms..................................................86
Figure 9-13. Service Mode: Status Error Shutdowns...........................................87
Figure 9-14. Service Mode: Status Error Log (1) .................................................87
Figure 9-15. Service Mode: Status Error Log (2) .................................................88
Figure 9-16. Service Mode: Temperature Histogram...........................................89
Figure 11-1. Transfer Function...........................................................................100
Table 1-1. Board Connections................................................................................5
Table 1-2. Positioning Command Input..................................................................6
Table 3-1. Driver Power Input ..............................................................................27
Table 3-2. Maximum Distance from 24 V Power Source to ProAct Actuator.......28
Table 3-3. Maximum Distance from 18 V Power Source to ProAct Actuator.......28
Table 3-4. RS-232 Port Pinout .............................................................................30
Table 3-5. ProAct CAN Address...........................................................................30
Table 9-1. Approximate Inertia Setting for Two Identical Steel Levers ................79
Table 11-1. Transfer Function Parameters ........................................................100

ProAct Digital Plus Manual 26112
iv Woodward
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.

Manual 26112 ProAct Digital Plus
Woodward v
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.

ProAct Digital Plus Manual 26112
vi Woodward
Regulatory Compliance
European Compliance for CE Mark:
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)
Other European Compliance:
Compliance with the following European Directives or standards does not qualify
this product for application of the CE Marking:
Machinery Directive: Compliant as partly completed machinery with
Directive 2006/42/EC of the European
Parliament and the Council of 17 May 2006 on
machinery.
North American Compliance:
This listing is limited only to those units identified for use in hazardous locations
and bearing the CSA logo. This product is certified as a component for use in
other equipment. The final combination is subject to acceptance by CSA
International or local inspection.
CSA: CSA Certified for Class I, Division 2, Groups A,
B, C, & D, T4 at 85 °C Ambient for use in
Canada and the United States
Certificate 1167451
This listing is limited only to those units identified for use in ordinary locations and
bearing the CSA logo.
CSA: CSA Certified for Ordinary Locations at 85 °C
Ambient for use in Canada and the United
States
Certificate 1167451
This listing is applicable to those units identified
for use in ordinary locations and bearing the
CSA logo.
Marine Compliance:
Lloyd’s: Marine propulsion and auxiliary products in
categories ENV1, ENV2, ENV3, and ENV4 as
defined in LR Type Approval Test Specification
No. 1, 1996.
Type Approval Certificate 01/60006
Peripheral equipment must be suitable for the location in which it is used.
General Installation and Operation Notes and Requirements:
The ProAct Digital Plus is suitable for use in Class I, Division 2, Groups A, B, C,
and D per CSA for Canada and US, Ordinary Locations per CSA for Canada and
US, or non-hazardous locations only, depending on the individual unit labeling.
Specifically marked units are suitable for use in Ordinary Locations per UL for US
and Canada.
For units marked for use in hazardous locations, wiring must be in accordance
with North American Class I, Division 2 wiring methods as applicable, and in
accordance with the authority having jurisdiction. For ordinary locations and
non-hazardous location uses, wiring must be in accordance with the authority
having jurisdiction.

Manual 26112 ProAct Digital Plus
Woodward vii
In order to maintain the NEMA 3R outdoor rating, any wiring connections to the
ProAct must be done in accordance with NEMA 3R standards and practices.
Field wiring must be suitable for at least 85 °C.
Compliance with the Machinery Directive 2006/42/EC noise measurement and
mitigation requirements is the responsibility of the manufacturer of the machinery
into which this product is incorporated.
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.
Jumpers should not be moved or changed unless power has been
switched off.

ProAct Digital Plus Manual 26112
viii Woodward
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Manual 26112 ProAct Digital Plus
Woodward 1
Chapter 1.
General Information
Introduction
This manual describes the Woodward ProAct™ Digital Plus Actuator for engine
applications. This manual provides installation instructions, describes the control,
and explains the configuration (programming), adjustments (service mode), and
hardware specifications. This manual does not contain instructions for the
operation of the complete engine system. For engine or plant operating
instructions, contact the plant-equipment manufacturer.
This revision of the manual applies to all ProAct Digital Plus models with software
version 2.00 or newer.
How to Use This Manual
The following summarizes how to install a ProAct actuator into a new or existing
system.
Unbox and inspect the hardware for any visible damage caused during
shipping.
Mount the actuator and linkages following the procedures and
recommendations in Chapter 2.
Wire the actuator—see Chapter 3.
Refer to Chapter 4 for guidelines on calibration and setup.
The actuator must be properly set up using the Service Tool prior to
starting the engine.
The inertia setting must be properly adjusted using the Service Tool
prior to engine operation. An improper inertia setting will result in
undesirable performance.
The Service Tool is not included, but can be download from the
Woodward Internet website (www.woodward.com) or by ordering the
Watch Window Standard CD-ROM (1796-065).
Description
The ProAct Digital Plus is a family of electric actuators with integral drivers
intended to be mounted on-engine to control varying functions including (but not
limited to): fuel rack positioning, timing control, and throttle valve and wastegate
positioning. The device is effectively a positioner which will accept a desired
position signal from another device in the system, such as a speed control, and
drive to that position. Each unit includes a digital driver capable of controlling the
actuator, communicating with the outside control system, and containing on-
board software and intelligence to realize monitoring and customizing functions.

ProAct Digital Plus Manual 26112
2 Woodward
Figure 1-1a. ProAct Digital Plus Functional Overview

Manual 26112 ProAct Digital Plus
Woodward 3
Figure 1-1b. ProAct Digital Plus Functional Overview
The ProAct Digital Plus actuator can be commanded to a position via (4 to 20)
mA, (0 to 200) mA, PWM, or CAN interfaces. In addition, given an on board
position feedback device, the actual position is available to the system through a
position output signal.

ProAct Digital Plus Manual 26112
4 Woodward
Each member of the ProAct Digital Plus family has a different bi-directional
torque output capability as described in Chapter 11 (Specifications). In addition,
each actuator has a nominal rotation of 75° at the output shaft. It can be mounted
in either a base mount or flange mount configuration, with the exception of the
ProAct Digital Plus Model IV which can only be base mounted. The units are
designed to operate in an on-engine environment and can therefore withstand
high levels of vibration and temperature extremes. The details of these
environmental limits can be found in the Environmental Specifications section in
Chapter 11.
As described in the Regulatory Compliance section, the ProAct Digital Plus
family of actuators meets CSA requirements for Class I, Division 2 or Ordinary
Locations for North America, and CE Marking requirements.
Controller Overview
The position controller software is executed on a 20 MHz 68376 32-bit
microcontroller onboard the ProAct Driver. Internal current and position sensors
provide feedback for closed-loop position control. The driver interfaces with an
external speed control via a position demand. The position demand can be an
analog signal (0 mA to 20 mA or 0 mA to 200 mA), a PWM signal, or optional
CAN. The driver can also be configured to accept redundant demand signals.
The ProAct control monitors all available signals, internal and external, and
annunciates any detected faults through the discrete output. An analog output
provides actual position indication, and a discrete input is available to remotely
shut down the actuator.
Features of the driver include model-based position and current control loops,
on-line and off-line diagnostics, current limiting based on electronics temperature,
CAN communications, and service port communications.
The ProAct control is field programmable, which allows a single design to be
used in many different applications. The driver must be configured and field
calibrated to the specific engine using the Service Tool software. The Service
Tool software is loaded on a PC and communicates serially to the driver via
RS-232 using Woodward’s DDE Servlink protocol. Refer to Chapter 8 (Service
Tool) for installation instructions. Figure 1-2 provides an overview of the ProAct
Digital Plus driver I/O (inputs/outputs).
Mechanical Setup
Mounting
The ProAct Digital Plus platform is base mounted to tapped holes on the bottom
of the actuator containing through-holes (see Figure 2-5). In addition, the models
I, II, and III have the capability of being flange mounted. The unit can be mounted
in any orientation. All exterior and mounting dimensions and exterior fasteners
are metric. See Chapter 2 (Installation) for details on mounting and installation.
Output Shaft
The ProAct Digital Plus family output shafts are standard US-customary sizes
with toothed serrations. A rotation scale and indicator are available as an optional
kit for visible detection of travel (for reference only).

Manual 26112 ProAct Digital Plus
Woodward 5
Power
Input
Command
Inputs
Position
Feedback
Output
CANbus Serial
Communications
(optional)
Discrete Input
and Output
Actuator
Drive
Position
Feedback
RS-232 Serial
Communications
SPI
Port
Filtered
Power
Local User
Setup Only
Future Expansion
(daughter board)
Internal Wiring
End User I/O
ProAct Driver
Figure 1-2. Driver Overview
Rotation
All ProAct Digital Plus actuators have 73–77of available travel. The max fuel
direction of this travel is software configurable in the clockwise or
counterclockwise direction through the Service Tool.
Mechanical Stops
Internal mechanical actuator stops will only survive a maximum kinetic energy of
0.011 J (0.097 in-lb). If the actuator internal stops are used, the load inertia should
not exceed 3.76E-3 in-lb-s² (4.25E-4 kgm²). See Chapter 2 (Linkage) for details on
actuator inertia and internal stops. In service, electrical and engine stops should be
set inside the actuator stops. Electrical stops are set via the Service Tool.
Electrical Connections
There are three interfaces on the circuit board. Refer to Chapter 3 for details on
ProAct actuator wiring.
Interface
Type
Use
Service Port
9-pin sub-D male
Located beneath the customer entry plate.
Power Taps
Insulated Spade or
Ring Lug
For 24 V (dc) connection.
Terminal Strip
Terminal Block
All other functions.
Table 1-1. Board Connections
An optional M37 blanking plug is available to make connections to
the 9-pin sub-D male service port. This port should be used only for
configuration and setup. Thread lock should be used to secure the
blanking plug.

ProAct Digital Plus Manual 26112
6 Woodward
Position Command Input
There are four possible position command signals. See the table below for an
overview of the signals and corresponding input signal to actuator position. All
adjustments are done via the Service Tool software. All circuits are protected
against short circuit to battery negative. These short circuits will not cause
damage to the control.
Input Signal
Nominal Range
Adjustment Range
Actuator Output for
Input Range
PWM:
(7 to 32) V
(100 to 3000) kHz
20 % to 80 % Duty
Cycle
10 % to 90 % Duty
Cycle
0 % to 100 %
Actuator Position
Analog:
(0 to 200) mA
(20 to 180) mA
(0.0 to 200) mA
0 % to 100 %
Actuator Position
Analog:
(4 to 20) mA
(4 to 20) mA
(0.0 to 25) mA
0 % to 100 %
Actuator Position
CAN Command
n/a
n/a
0 % to 100 %
Actuator Position
Table 1-2. Positioning Command Input
Inputs/ Outputs (I/O)
The following Inputs/Outputs (I/O) are available in the ProAct Digital Plus:
power input
1 analog input
1 PWM input
3 discrete inputs
1 discrete output
1 analog output
1 RS-232 communications port
1 CAN (Controller Area Network) port (optional)
Refer to the control wiring diagram (Figure 3-1) for wiring overview. Refer to
Chapter 3 for wiring details.
Power Input
The input power has an operational range of (18 to 32) V (dc), nominal 24 V (dc).
Input power out of range diagnostics are provided.
Analog Input for Position Demand
The analog input is configurable for either (20 to 180) mA (200 mA range) or
(4 to 20) mA (25 mA range). The range is selected using the jumper on the
terminal board—JPR1 for 200 mA range and JPR2 for 20 mA range. Range and
failure diagnostics are provided based on software configuration and settings.
PWM Input for Position Demand
The PWM input accepts a (100 to 3000) Hz input signal of (7 to 32) V peak voltage
(referenced to unit battery ground). The PWM input duty cycle minimum and
maximum are field adjustable to match the controller sending the demand. Range
and failure diagnostics are provided based on software configuration and settings.

Manual 26112 ProAct Digital Plus
Woodward 7
Discrete Input—Low Power Standby Mode
(option may not be available on current-input models)
When opened, the driver goes into a Low Power Standby Mode. The Low Power
Standby Mode causes the current driver and the analog output to be
de-activated, to minimize the power consumption of the driver. This input is
connected to ground, preferably Discrete Common, for a logic ‘true’.
The Status Output can also be configured to de-activate when the unit is put into
Low Power Standby Mode. See Chapter 9 for Configure Mode Parameters to set
Discrete Out Includes Runenable [Run/Enable].
If using firmware version 2.20 Woodward part number 5418-2590, it is
possible to configure this input for Run Enable –Closed to Run =
False. With this configuration, the contacts are open to run, and
closed to enter Low Power Standby Mode.
This input must be closed to operate the unit. When open, the unit is
forced into a non-operational shutdown state.
Alternatively, if it is desired to completely reduce the power consumption of the
driver to zero, power can be completely disengaged from the unit with a
customer installed switch on the input power. We recommend that the Low
Power Standby Mode be activated before opening the power lines to minimize
the unit’s current draw and to store internal parameters.
Discrete Inputs—CAN Address Identification
The CAN Hi and Lo discrete inputs provide an address based on input
open/closed status on initialization. Four CAN address combinations (1–4) are
available. For example, both contacts open means that the unit address is ‘1’,
and both closed means unit ’4’. These inputs are connected to ground, preferably
Discrete Common, for a logic ‘true’.
Discrete Output—Driver Status Indication
The discrete output is normally ON (24 V provided to the load), and turns
off/opens to indicate any detected fault (alarm or shutdown) condition within the
ProAct Digital Plus. Fault conditions are non-latching, which means a reset
command is not required when the condition clears. The Service Tool program
can be used to interrogate the cause of the alarm or shutdown as well as provide
a historical log of events (see Event Log). The optional CAN communications can
also be used to determine alarm and shutdown causes.
The ProAct Digital Plus will continue to operate with an alarm condition (for
example, failure of the primary demand signal). However, the unit will cease to
operate on a shutdown condition (for example, failure of both primary and backup
demand signals).

ProAct Digital Plus Manual 26112
8 Woodward
4 mA to 20 mA Analog Output for Indication of Actual Position
to an External Device
An analog output of 4 mA and 20 mA corresponds to 0 % and 100 % actuator
travel, respectively. Offset and gain adjustments are provided.
RS-232 Communications Port
An RS-232 communications service port is provided with a 9-pin sub-D male
connector for connection to a PC service tool. This connection is a typical three-
wire null modem RS-232 communication which is limited to 15 m (50 feet; RS-232
limitation). The port supports Woodward Servlink (DDE) protocol and has fixed
communications settings of 19.2 K baud rate, 8 data bits, no parity, and 1 stop bit.
CAN Communications Port (optional)
The driver has CAN communications, version 2.0B, with 29-bit identifiers. The
protocol complies with SAE J1939, but uses proprietary group extensions.The CAN
port supports positioning (position demand from CAN) of the driver. It also supports
ProAct Digital Plus monitoring of all shutdown and alarm conditions as well as some
system variables. The address is determined bythe CAN address discrete inputs.
The data rate may be chosen from 250 kbps, 500 kbps, and 1 Mbps.

Manual 26112 ProAct Digital Plus
Woodward 9
Chapter 2.
Hardware Installation
This chapter provides instructions on how to mount and connect the ProAct™
Digital Plus actuator into a system. Hardware dimensions are provided for
mounting the ProAct package to a specific application.
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.
Due to typical noise levels in turbine environments, hearing
protection should be worn when working on or around the ProAct
Actuator.
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.
Unpacking
Be careful when unpacking the actuator. Check the unit for signs of damage,
such as bent or dented panels, scratches, and loose or broken parts. Notify the
carrier and Woodward if damage is found.
Mounting Location
The ProAct Digital Plus actuator is designed to operate within a temperature range
of –40 to +85 °C (–40 to +185 °F). Mount the driver close enough to the battery to
meet the wire-length requirements (see wiring instructions in Chapter 3).
The ProAct actuator is designed for installation on the engine. The ProAct
actuator will generate heat, especially when stalled or during other conditions
requiring maximum torque output. The installer must consider the heat
conductivity of the installation bracket, and the operating temperature of the
ultimate heat sink to which the bracket will be attached. Generally the heat
transfer abilities of aluminum and low-carbon steel are better than those of high-
carbon steel or stainless steel.
A minimum gap of 0.5 mm must be maintained between the support
bracket and electronics enclosure (see Figure 2-1). This is necessary
because the enclosure is supported on vibration isolators to filter out
high-frequency vibrations from reaching the electronics. If the
enclosure contacts the bracket, the isolation is defeated and may
reduce the electronics operating life.
If spacers are used to achieve the necessary gap, Woodward
recommends maximizing the surface contact area of the spacers to
maximize heat transfer between the ProAct and mounting bracket.

ProAct Digital Plus Manual 26112
10 Woodward
Actuator Application Guidelines
The following sections include environmental guidelines for applying the ProAct
Digital Plus. By adhering to the limitations and recommendations set forth in
these sections, the customer will realize the full functionality of the actuator and
improve its overall reliability.
Mounting
Models I through IV actuators may be installed on a bracket in either base or
flange mount configuration with the exception of the model IV. The mass of the
model IV requires that it be mounted only in the base mount configuration. The
base mount configuration requires the use of four M8x1.25 screws with a
minimum engagement of 16 mm. The flange mount configuration requires the
use of four M8 screws through the flange. Whether base mounting or flange
mounting the actuator, torque the four M8 screws to 22.6 Nm (200 lb-in). The
actuator may be mounted in any attitude.
The ProAct Digital Plus weighs approximately:
Model I 11 kg (25 lb) Model II 11 kg (25 lb)
Model III 15 kg (32 lb) Model IV24 kg (52 lb)
The bracket and attaching hardware must be designed to hold the weight and to
withstand the vibration associated with engine mounting. Additionally, the bracket
must be designed to provide a heat sink (heat transfer) from the actuator to the
engine block as described in the following section.
As shown in Chapter 11, ProAct Digital Plus Specifications, the ProAct actuators
have been designed for and verified to a given accelerated life vibration test level
at the mounting surface of the actuator. The user should be aware that in any
application, bracket design can significantly change the vibration levels at the
actuator. Therefore, every effort should be made to make the bracket as stiff as
possible so that engine vibrations are not amplified, creating an even more
severe environment at the actuator. Additionally, when possible, orienting the
actuator shaft parallel to the crankshaft of the engine will often reduce the
vibration load on the actuator's rotor system in reciprocating engine applications.
Actuator Selection and Temperature Monitoring
Guidelines
The thermal design of the ProAct Digital Plus is based on the cooling of critical
electrical components coupled to the aluminum frame of the actuator. In this
manner, by maintaining a certain temperature at a specified location on the
actuator frame, the temperature of the electronics will be maintained within
acceptable limits. Therefore, when applying the ProAct Digital Plus actuator, the
area shown in the following diagram (Figure 2-1) must not exceed 90 °C
regardless of the surrounding thermal conditions. If the temperature of this zone
does exceed 90 °C, thermal based actuator output limiting may begin depending
on user-configurable options. The limiting area shown in Figure 2-1 is referred to
as the temperature monitoring zone.
CSA hazardous or CSA and UL ordinary location certification of the
ProAct Digital Plus is not applicable if the ambient temperature
exceeds 85 °C.