Woodward TM-25LP User manual

Product Manual 82450
(Revision AA, 7/2017)
Original Instructions
TM-25LP, TM-200LP Actuators
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 Out-of-date translations are marked with .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— A bold, black line alongside the text identifies changes in this publication since the
last revision.
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 82450
Copyright © Woodward, Inc. 1981 - 2017
All Rights Reserved

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 1
Contents
WARNINGS AND NOTICES ...............................................................................................................3
ELECTROSTATIC DISCHARGE AWARENESS......................................................................................4
REGULATORY COMPLIANCE............................................................................................................5
CHAPTER 1. GENERAL INFORMATION..............................................................................................7
Description .................................................................................................................................................... 7
References.................................................................................................................................................... 7
Direction of Output ........................................................................................................................................ 7
Single or Dual Coil ........................................................................................................................................ 7
Terminal Shaft Options ................................................................................................................................. 7
CHAPTER 2. INSTALLATION.............................................................................................................8
Introduction ................................................................................................................................................... 8
Receiving....................................................................................................................................................... 8
Storage.......................................................................................................................................................... 9
Installation ..................................................................................................................................................... 9
CHAPTER 3. INITIAL OPERATION OF THE ACTUATOR......................................................................18
Initial Operation ........................................................................................................................................... 18
Adjustments ................................................................................................................................................ 18
CHAPTER 4. PRINCIPLES OF OPERATION.......................................................................................19
Introduction ................................................................................................................................................. 19
Operation..................................................................................................................................................... 19
CHAPTER 5. MAINTENANCE ..........................................................................................................21
Introduction ................................................................................................................................................. 21
Filter Cleaning ............................................................................................................................................. 21
Troubleshooting .......................................................................................................................................... 21
CHAPTER 6. REPLACEMENT PARTS...............................................................................................23
Introduction ................................................................................................................................................. 23
CHAPTER 7. PRODUCT SUPPORT AND SERVICE OPTIONS ..............................................................26
Product Support Options............................................................................................................................. 26
Product Service Options ............................................................................................................................. 26
Returning Equipment for Repair ................................................................................................................. 27
Replacement Parts...................................................................................................................................... 28
Engineering Services .................................................................................................................................. 28
Contacting Woodward’s Support Organization ........................................................................................... 28
Technical Assistance .................................................................................................................................. 29
REVISION HISTORY.......................................................................................................................30
DECLARATIONS ............................................................................................................................31

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 2
Illustrations and Tables
Figure 2-1a. TM-25LP/TM-200LP Actuator................................................................................................. 12
Figure 2-1b. TM-25LP/TM-200LP Actuator with Rod End .......................................................................... 13
Figure 2-2a. Dual Coil TM-25LP/TM-200LP Actuator with Position Feedback........................................... 14
Figure 2-2b. Dual Coil TM-25LP/TM-200LP Actuator without Position Feedback...................................... 15
Figure 2-3. Single Coil Wiring ..................................................................................................................... 16
Figure 2-4. Dual Coil Wiring........................................................................................................................ 17
Figure 4-1. Single/Dual Coil Schematic, TM-25LP/TM-200LP Actuator ..................................................... 20
Figure 6-1. TM-200LP Exploded View ........................................................................................................ 25
Table 2-1. TM-25LP Flow Requirements .................................................................................................... 10
Table 2-2.TM-200LP Flow Requirements ................................................................................................... 10
Table 2-3. TM-25LP Electrical Characteristics............................................................................................ 11
Table 2-4. TM-200LP Electrical Characteristics.......................................................................................... 11
Table 2-4. TM-25LP Output Characteristics ............................................................................................... 11
Table 2-5. TM-200LP Output Characteristics ............................................................................................. 11
Table 6-1. Parts Reference Number and Name ......................................................................................... 24

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 3
Warnings and Notices
Important Definitions
This is the safety alert symbol 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.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 4
Electrostatic Discharge Awareness
Electrostatic
Precautions
Electronic controls contain static-sensitive parts. Observe the
following precautions to prevent damage to these parts:
Discharge body static before handling the control (with power to
the control turned off, contact a grounded surface and maintain
contact while handling the control).
Avoid all plastic, vinyl, and Styrofoam (except antistatic
versions) around printed circuit boards.
Do not touch the components or conductors on a printed circuit
board with your hands or with conductive devices.
To prevent damage to electronic components caused by improper
handling, read and observe the precautions in Woodward manual
82715 , Guide for Handling and Protection of Electronic Controls,
Printed Circuit Boards, and Modules.
Follow these precautions when working with or near the control.
1. Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic
materials. Wear cotton or cotton-blend materials as much as possible because these do not store
static electric charges as much as synthetics.
2. Do not remove the printed circuit board (PCB) from the control cabinet unless absolutely necessary.
If you must remove the PCB from the control cabinet, follow these precautions:
Do not touch any part of the PCB except the edges.
Do not touch the electrical conductors, the connectors, or the components with conductive
devices or with your hands.
When replacing a PCB, keep the new PCB in the plastic antistatic protective bag it comes in
until you are ready to install it. Immediately after removing the old PCB from the control cabinet,
place it in the antistatic protective bag.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 5
Regulatory Compliance
European Compliance for CE Marking:
These listings are limited only to TM-25LP units bearing the CE Marking.
ATEX – Potentially
Explosive
Atmospheres
Directive:
Directive 2014/34/EU on the harmonisation of the laws of the Member
States relating to equipment and protective systems intended for use in
potentially explosive atmospheres
TM-25LP Single Coil: LCIE 12 ATEX 3022 X
Zone 1, Category 2, Group II, Ex e IIC T4 Gb IP54
TM-25LP Dual Coil:
Zone 2, Category 3, Group II, Ex nA IIC T4 Gc IP54
LCIE 12 ATEX 3064 X, Zone 1, Category 2, Group
II, Ex d IIB T4 Gb c IIB T4 IP54
Other European and International Compliance:
Compliance with the following European Directives or standards does not qualify this product for
application of the CE Marking (TM-25LP only).
EMC Directive: Not applicable to this product. Electromagnetic, EMC, passive devices are
excluded from the scope of the 2014/30/EU Directive
Machinery Directive: Compliant as Partly Completed Machinery with 2006/42/EC of the European
Parliament and the Council of 17 May 2006 on machinery.
Pressure Equipment
Directive: Compliant as “SEP” per Article 4.3 to Pressure Equipment Directive
2014/68/EU on the harmonisation of the laws of the Member States relating
to the making available on the market of pressure equipment.
Note: This listing is limited to units bearing the TIIS certification labeling.
TIIS: The TM-25LP Single Coil Actuator is certified for use in Japanese
hazardous locations per TIIS Certificate TC17927 as Ex e II T3 (155 °C).
KC Korea: Certified for use in explosive atmospheres per
KTL Certificate 14-KB4BO-0390X as Ex e IIC T4
IECEx: TM-25LP
Single Coil: LCI 12.0010X Ex e IIC T4 Gb IP54
Dual Coil: LCI 12.0011X Ex nA IIC T4 Gc IP54; Ex d IIB T4 Gb IP54
North American Compliance:
These listings are limited only to those units bearing the CSA identification.
CSA: CSA Certified for use in the United States and Canada: Certificate 2399483.
Single and dual coil actuators certified for Class I, Division 2, Groups A, B,
C, & D.
Dual coil actuators certified for Class I, Division 1, Groups C & D.
Wiring must be in accordance with North American Class I, Division 1 or 2, or European Zone 1, Category
2 wiring methods as applicable, and in accordance with the authority having jurisdiction.
The TM-25LP and TM-200LP are certified to a Zone 1-Category 2 or 3 method of protection. Wiring
methods must be in accordance with their respective markings.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 6
NPTF conduit entries are provided as shown in Figures 2-1 and 2-2.
Note: The LVDT option is only available on certain units. Contact Woodward for details.
Special Conditions for Safe Use:
Each torque motor must be provided with a 900 mA maximum fuse to be installed before the torque
motor.
Circuit to the torque motor must be an NEC Class 2 circuit which is limited to a nominal voltage of 30
V with a switch-off voltage of 480 V.
Field wiring must be suitable for at least 90 °C and 10 °C above the ambient operating temperature.
Connect external ground terminal to earth ground.
Additional Special Conditions for Safe Use—ATEX Flameproof Installation only:
Electrical connection must be performed using conduit certified for the intended use.
Maximum temperature at conductor entry and branching point: +96 °C.
Connection of flying leads must be done in an enclosure which complies with applicable
requirements.
Minimum tensile strength of fasteners shall be 552 MPa / 80 ksi.
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 1 or Division 2, and Zone 1 or Zone 2 applications.
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 1
ou Division 2, et Zone 1 ou Zone 2.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 7
Chapter 1.
General Information
Description
The TM-25LP and TM-200LP actuators are electric-hydraulic, proportional actuators designed for use
with Woodward 43027 and 2301 electric controls and may interface with an adapter directly to a fuel flow
control valve. They have an aluminum case with through-hardened stainless steel internal parts.
In the actuator, a torque motor servovalve is energized by the electric control to generate a pressure
differential applied to the ends of, and to operate, the second stage spool valve. Supply pressure is
regulated by the spool valve to move a double acting servo piston and provide 25 mm (1 inch) of linear
output shaft travel. Internal mechanical feedback is standard. The actuator is calibrated at the factory for
bias in the minimum fuel direction in the event of a loss of input current.
Hydraulic fluid is sealed from the torque motor by a preformed packing ring between the armature and the
servovalve housing, eliminating the accumulation of magnetic contaminants. A 40 µm nominal/70 µm
absolute filter fitting is provided at the hydraulic supply port for protection in the event of an upstream filter
failure.
References
Product Specification 82451 about the TM-25LP and TM-200LP is available on our website
(www.woodward.com/publicationsdownload.aspx?DocumentNumber=82451).
Direction of Output
TM-25LP and TM-200LP actuators are available either to extend the terminal shaft as the actuator signal
increases or retract the terminal shaft as the actuator signal increases. The reaction to signal change is a
factory modification.
Single or Dual Coil
TM actuators are available with either single or dual coil torque motors. The dual coil option provides
redundant electrical channels in the torque motor. In the dual coil models, the coils can be used
independently or together to load share.
Terminal Shaft Options
TM actuators are available with either internal (female) 0.375-24 UNF threads as shown in Figure 2-1a or
external (male) 0.375-24 threads. A clevis-type rod end can also be purchased and installed on the
external threads as shown in Figure 2-1b.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 8
Chapter 2.
Installation
Introduction
Receiving, storage, and installation for the actuator are covered in this chapter. See the outline drawing,
Figure 2-1.
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.
EXPLOSION HAZARD—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.
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 1 or Division 2, and Zone 1 or Zone 2 applications.
Due to typical noise levels in turbine environments, hearing
protection should be worn when working on or around the TM
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.
Be careful when installing the actuator. Do not damage the output shaft. Abuse of the actuator can
damage seals, installation surfaces, and alter the calibration of the unit. Protect the hydraulic connections
with plastic shipping caps when the actuator is not connected to the normal piping.
Receiving
The actuator is calibrated and drained of calibration fluid at the factory. It is then placed in a cardboard container
filled with urethane foam for delivery to the customer. Additional cleaning or calibration is not necessary before
installation or operation.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 9
To avoid personal injury from improper lifting or from dropping the
actuator, be sure to use appropriate equipment and safe-lifting
techniques when handling the actuator. Dry weight of the actuator is
approximately 9 kg (20 lb).
Storage
The actuator may be stored as received from the factory for a period of time before installation.
Installation
See the outline drawing, Figure 2-1, for:
overall dimensions
installation hole locations
hydraulic fitting sizes
output shaft dimensions
Proper filtration of the hydraulic supply is extremely important. A 10 µm (nominal) filter must be installed
in the supply to the actuator within 1 meter of the supply port. If a dedicated HPU supply system is
installed, the distance from the filter to the actuator is not important. It is necessary to keep the immediate
area and equipment clean and free of dirt and contaminants while working on and connecting the
hydraulic lines.
The attitude in which the actuator is installed does not affect the performance of the actuator.
Connect all hydraulic lines to the actuator. Supply pressure for the TM-25LP or TM-200LP actuator can
be from either positive displacement or centrifugal type pumps. Woodward recommends the use of a
pressure switch to be sure that correct supply pressure is established before start-up and maintained
continually thereafter.
It is very important that the linkage between the actuator output and the fuel system be of correct
relationship for proper operation. Use as much of the 25 mm (1 inch) output travel as possible between
minimum and maximum flow points.
Use the correct Woodward control manual when making all electrical connections. A plant wiring diagram
will be supplied upon request. In applications where the actuator is not used with a Woodward electric
control, electrical input requirements will also be supplied upon request.
The TM-25LP and TM-200LP are certified to a Zone 1-Category 2 or
Zone 2-Category 3 method of protection. Wiring methods must be in
accordance with their respective markings and Zone/Category of
installation.
Due to the hazardous location listings associated with this product,
proper wire type and wiring practices are critical to operation.
Each torque motor must be provided with a 900 mA maximum fuse to
be installed before the torque motor. Voltage to the torque motor
must be limited to a nominal voltage of 30 V with a switch-off voltage
of 480 V.

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 10
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 2-3 &
2-4).
Supply Characteristics
TM-25LP
Fluid Types: Mineral or synthetic based oils, diesel fuels, kerosenes, gasolines, or
light distillate fuels
Specific Gravity: 0.6 to 1.0
Recommended Viscosity: 0.6 to 400 centistokes
150–200 SSU
ISO 32 Grade
External Filter: 10 µm nominal
Supply Pressure: Any nominal level between 552 and 2586 kPa (80 and 375 psig)
Ambient Temperature
Range: –40 to +93 °C (–40 to +199 °F)
Hydraulic Fluid
Temperature Range: 16 to 79 °C (60 to 175 °F)
Hydraulic Cleanliness Level ISO 4406 20/18/15 minimum
TM-200LP
Fluid Types: Mineral or synthetic based oils, diesel fuels, kerosenes, gasolines, or
light distillate fuels
Specific Gravity: 0.6 to 1.0
Recommended Viscosity: 0.6 to 400 centistokes
150–200 SSU
ISO 32 Grade
External Filter: 10 µm nominal
Supply Pressure: Any nominal level between 2758 and 8274 kPa (400 and 1200 psig)
Ambient Temperature
Range: –40 to +121 °C (–40 to +250 °F)
Hydraulic Fluid
Temperature Range: 16 to 79 °C (60 to 175 °F)
Hydraulic Cleanliness Level ISO 4406 20/18/15 minimum
Table 2-1. TM-25LP Flow Requirements
Supply Pressure Steady State Flow Max. Transient Flow Rated Max. Work
Single Coil or Dual Coil
552 kPa
80 psig
3.8 L/min
1.0 US gal/min
18.9 L/min
5.0 US gal/min
15 J
11 ft-lb
2586 kPa
375 psig
3.8 L/min
1.0 US gal/min
18.9 L/min
5.0 US gal/min
72 J
53 ft-lb
Table 2-2.TM-200LP Flow Requirements
Supply Pressure Steady State Flow Max. Transient Flow Rated Max. Work
Single Coil or Dual Coil
2758 kPa
400 psig
3.8 L/min
1.0 US gal/min
18.9 L/min
5.0 US gal/min
76 J
56 ft-lb
8274 kPa
1200 psig
3.8 L/min
1.0 US gal/min
18.9 L/min
5.0 US gal/min
231 J
170 ft-lb

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 11
Table 2-3. TM-25LP Electrical Characteristics
Input Current Range: 20 to 200 mA per coil
Coil Resistance: 26 Ωat 21 °C (70 °F) single coil, 40 Ωdual coil
Maximum Coil Current: 250 mA (single coil)
460 mA (dual coil)
Table 2-4. TM-200LP Electrical Characteristics
Input Current Range: 20 to 200 mA
Coil Resistance: 26 Ωat 21 °C (70 °F) single coil, 40 Ωdual coil
Maximum Coil Current: 250 mA
Table 2-4. TM-25LP Output Characteristics
Linear Stroke: 25 mm (1.0 inch)
Output Force: 605 N (136 lb) maximum at 552 kPa (80 psig)
2833 N (637 lb) maximum at 2586 kPa
(375 psig) (both directions)
Table 2-5. TM-200LP Output Characteristics
Linear Stroke: 25 mm (1.0 inch)
Output Force: 3025 N (680 lb) maximum at 2758 kPa
(400 psig)
9074 N (2040 lb) maximum at 8274 kPa
(1200 psig) (both directions)

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 12
Figure 2-1a. TM-25LP/TM-200LP Actuator

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 13
Figure 2-1b. TM-25LP/TM-200LP Actuator with Rod End

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 14
Figure 2-2a. Dual Coil TM-25LP/TM-200LP Actuator with Position Feedback


Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 15
Figure 2-2b. Dual Coil TM-25LP/TM-200LP Actuator without Position Feedback


Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 16
Figure 2-3. Single Coil Wiring
(Shields to be grounded at electronic control end only)

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 17
Figure 2-4. Dual Coil Wiring
(Shields to be grounded at electronic control end only)

Manual 82450 TM-25LP, TM-200LP Actuators
Woodward 18
Chapter 3.
Initial Operation of the Actuator
Initial Operation
Before the initial operation of the actuator, be sure that all previous installation and hookup procedures
are accomplished and all linkages (if any), electrical connections, and hydraulic fittings are secure and
properly connected.
Be sure that the correct hydraulic supply pressure to the actuator is established before start-up. Trapped
air within the hydraulic system may cause momentary erratic behavior of the actuator at the initial
operation. Use the correct Woodward manual for the Woodward electric control to begin prime mover
operation.
Null current shifts of up to ±4% of maximum rated current (200 mA) can occur due to variations in the
following parameters:
hydraulic supply and return pressures
hydraulic fluid temperature
servovalve and actuator wear
Due to the inherent null shifts and position drift of all hydraulic servovalves and proportional actuators,
engine control applications must be designed with these errors in mind.
Woodward recommends that adequate dither be used on all hydraulic actuators to minimize mA threshold
and hysteresis which can result from second stage static friction or hydraulic contamination.
Dither is a low amplitude, relatively high frequency periodic signal that is superimposed on the servovalve
input current signal. A typical dither signal generated by a Woodward control is:
25 Hz, 0–10 mA (tunable) amplitude
25% duty cycle, bipolar, square wave
Adequate dither is defined as that amount which produces no more than 0.013 mm (0.0005 inch) total
oscillation in output shaft position.
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.
Adjustments
Normally, all operating adjustments are made to the actuator during factory calibration according to
specifications provided by the customer and should not require further adjustment. Do not attempt
adjustments to the actuator unless thoroughly familiar with the proper procedures.