Woodward ProTech-SX 8237-1242 User manual

®
Product Manual 26546V1
(Revision F, 10/2016)
Original Instructions
ProTech-SX
8237-1242, -1243
Manual 26546 consists of 2 volumes (26546V1 & 26546V2).
Volume 1—Installation and Operation

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
26311 , Revision Status &
Distribution Restrictions of Woodward Technical Publications, 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
26311 , Revision Status &
Distribution Restrictions of Woodward Technical Publications, 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 Out-of-date translations are marked with .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 26546V1
Copyright © Woodward, Inc. 2010–2016
All Rights Reserved

Manual 26546V1 ProTech-SX
Woodward i
Contents
WARNINGS AND NOTICES............................................................................V
ELECTROSTATIC DISCHARGE AWARENESS ................................................. VI
REGULATORY COMPLIANCE .......................................................................VII
SAFETY SYMBOLS.......................................................................................X
CHAPTER 1. GENERAL INFORMATION...........................................................1
Description..............................................................................................................1
Applications ............................................................................................................2
CHAPTER 2. INSTALLATION..........................................................................4
Introduction.............................................................................................................4
Unpacking...............................................................................................................4
System Installation Procedure................................................................................4
Enclosures..............................................................................................................5
Mounting Location Considerations .........................................................................7
Environmental Specifications .................................................................................8
Power Supply Requirements..................................................................................8
Input/Output Signal Specifications .......................................................................10
Shielded Wiring ....................................................................................................14
Control Wiring Guidelines.....................................................................................14
CHAPTER 3. FUNCTIONALITY .....................................................................29
Features................................................................................................................29
Programming/Configuring Overview ....................................................................29
Product Models.....................................................................................................30
Inputs and Outputs ...............................................................................................31
Overspeed and Over-Acceleration Detection and Trip ........................................34
Start Logic ............................................................................................................35
Configurable Logic................................................................................................37
Test Routines .......................................................................................................38
Alarm, Trip, and Event Latches ............................................................................41
System Logs.........................................................................................................43
Response Time Performance...............................................................................44
CHAPTER 4. MODBUS COMMUNICATIONS...................................................46
Modbus Communications.....................................................................................46
Monitor Only .........................................................................................................46
Monitor and Control ..............................................................................................46
Modbus Communication.......................................................................................46
Port Adjustments ..................................................................................................47
ProTech-SX Parameter Addresses ......................................................................47
CHAPTER 5. TROUBLESHOOTING...............................................................53
I/O Troubleshooting ..............................................................................................54
Trip Indications .....................................................................................................58
Alarm Indications ..................................................................................................60
CHAPTER 6. SAFETY MANAGEMENT ..........................................................63
Product Variations Certified..................................................................................63
Safe State.............................................................................................................63
SIL Specifications .................................................................................................63
Failure Rate Data .................................................................................................64
Response Time Data............................................................................................64
Limitations ............................................................................................................65
Management of Functional Safety........................................................................65

ProTech-SX Manual 26546V1
ii Woodward
Restrictions ...........................................................................................................65
Competence of Personnel ....................................................................................65
Operation and Maintenance Practice ...................................................................65
Installation and Site Acceptance Testing .............................................................65
Functional Testing after Initial Installation ............................................................66
Functional Testing after Changes.........................................................................66
Proof Testing (Functional Test) ............................................................................66
CHAPTER 7. ASSET MANAGEMENT.............................................................68
Product Storage Recommendations.....................................................................68
Refurbishment Period Recommendation .............................................................68
CHAPTER 8. SERVICE OPTIONS..................................................................69
Product Service Options.......................................................................................69
Woodward Factory Servicing Options ..................................................................70
Returning Equipment for Repair...........................................................................70
Replacement Parts ...............................................................................................71
Engineering Services............................................................................................71
How to Contact Woodward...................................................................................72
Technical Assistance............................................................................................72
APPENDIX.MODBUS ETHERNET GATEWAY INFORMATION...........................73
Introduction...........................................................................................................73
B&B Electronics Setup .........................................................................................73
Lantronix Setup.....................................................................................................76
REVISION HISTORY ....................................................................................81
DECLARATIONS .........................................................................................82

Manual 26546V1 ProTech-SX
Woodward iii
Illustrations and Tables
Figure 1-1. Typical ProTech-SX Application ..........................................................2
Figure 1-2. Typical Gas Turbine Application ..........................................................3
Figure 1-3. Typical Safety PLC Application............................................................3
Figure 2-1a. Typical ProTech-SX Panel Mount Package—Front View..................5
Figure 2-1b. Typical ProTech-SX Panel Mount Package—Rear View with Cover 6
Figure 2-2a. Mounting Outline Diagram for ProTech-SX Panel-Mount Models.....6
Figure 2-2b. Mounting Outline Diagram for ProTech-SX Panel-Mount Models.....7
Figure 2-3. Screw Connection Terminal Block.....................................................15
Figure 2-4. ProTech-SX Control Wiring Diagram.................................................17
Figure 2-5a. Example MPU (Passive Magnetic Pickup Unit) Wiring....................18
Figure 2-5b. Example Proximity Probe (Active Magnetic Pickup Unit) Wiring
(Internal Power) ...............................................................................19
Figure 2-5c. Example Proximity Probe (Active Magnetic Pickup Unit) Wiring
(External Power, Non-preferred) .....................................................19
Figure 2-5d. Example Eddy Current Probe (Active Magnetic Pickup Unit)
Wiring...............................................................................................20
Figure 2-6a. Example Standard Discrete Input Wiring (Internal Power Option) ..20
Figure 2-6b. Example Standard Discrete Input Wiring (External Power Option) .21
Figure 2-7a. Example Configurable Input Wiring—Discrete Input (Internal Power
Option) .............................................................................................22
Figure 2-7b. Example Configurable Input Wiring—Discrete Input (External Power
Option) .............................................................................................22
Figure 2-8. Example Configurable Input Wiring—Analog Input ...........................23
Figure 2-9. Example Analog Output Wiring..........................................................24
Figure 2-10a. Example Trip Relay Wiring (Internal Supply).................................24
Figure 2-10b. Example Trip Relay Wiring (External Supply)................................25
Figure 2-10c. Example Programmable Relay Wiring (Internal Supply) ...............25
Figure 2-10d. Example Programmable Relay Wiring (External Supply) ..............26
Figure 2-11. Power Supply Relationship Diagram ...............................................27
Figure 2-12a. Serial Port Interface Diagram—RS-232.........................................27
Figure 2-12b. Serial Com Port Interface Diagram—RS-485................................28
Figure 2-13. Service Tool Cable/Interface Diagram.............................................28
Figure 3-1. Basic Functional Overview.................................................................30
Figure 3-2. Functional Diagram of ProTech-SX module ......................................31
Figure 3-3. Discrete Input Example......................................................................33
Figure 3-4. Analog Input Example........................................................................33
Figure 3-5. Programmable Relay Output Diagram...............................................34
Figure 3-6. Over-Acceleration Enabling Diagram ................................................35
Figure 3-7. Speed Fail Trip Diagram ....................................................................36
Figure 3-8. Speed Fail Timeout Trip Diagram......................................................36
Figure 3-9. Response Time Definition..................................................................45
Figure 3-10. Trip Relay Response Time (Typical) Graph ....................................45
Figure 6-1. Trip Response Time...........................................................................64
Table 1-1. Available ProTech-SX Models ..............................................................1
Table 2-1. Environmental Specifications ................................................................8
Table 2-2. Power Supply Specifications.................................................................8
Table 2-3. High Voltage Input Specifications .........................................................8
Table 2-4. Low Voltage Input Specifications ..........................................................9
Table 2-5. Signal Input Power Supply Specifications.............................................9
Table 2-6. Relay Output Power Supply Specifications...........................................9
Table 2-7. General Input Specifications ...............................................................10
Table 2-8. Passive Speed Probe Specifications ..................................................10
Table 2-9. Active Speed Probe Specifications .....................................................11
Table 2-10. Dedicated Discrete Input Specifications ...........................................11
Table 2-11. General Input Specifications .............................................................12

ProTech-SX Manual 26546V1
iv Woodward
Table 2-12. Analog Input Specifications...............................................................12
Table 2-13. Discrete Input Specifications.............................................................12
Table 2-14. Trip Relay Output Specifications.......................................................13
Table 2-15. Programmable Relay Output Specifications .....................................13
Table 2-16. Analog Output Specifications ............................................................13
Table 2-17. Serial Communications Port Specifications ......................................13
Table 4-1. Supported Modbus Function Codes....................................................47
Table 4-2. Boolean Write Addresses (Code 05)...................................................49
Table 4-3. Boolean Read Addresses (Code 02) ..................................................50
Table 4-4. Analog Read Addresses (Code 04) ....................................................52
Table 6-1. Initial Power-up States ........................................................................63
Table 6-2. SIL 2 Values ........................................................................................63

Manual 26546V1 ProTech-SX
Woodward v
Warnings and Notices
Important Definitions
This is the safety alert symbol. It is used to alert you to potential
personal injury hazards. Obey all safety messages that follow this
symbol to avoid possible injury or death.
DANGER—Indicates a hazardous situation which, if not avoided, will result
in death or serious injury.
WARNING—Indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION—Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
NOTICE—Indicates a hazard that could result in property damage only
(including damage to the control).
IMPORTANT—Designates an operating tip or maintenance suggestion.
Overspeed /
Overtemperature /
Overpressure
The engine, turbine, or other type of prime mover should be
equipped with an overspeed shutdown device to protect against
runaway or damage to the prime mover with possible personal injury,
loss of life, or property damage.
The overspeed shutdown device must be totally independent of the
prime mover control system. An overtemperature or overpressure
shutdown device may also be needed for safety, as appropriate.
Personal Protective
Equipment
The products described in this publication may present risks that
could lead to personal injury, loss of life, or property damage. Always
wear the appropriate personal protective equipment (PPE) for the job
at hand. Equipment that should be considered includes but is not
limited to:
Eye Protection
Hearing Protection
Hard Hat
Gloves
Safety Boots
Respirator
Always read the proper Material Safety Data Sheet (MSDS) for any
working fluid(s) and comply with recommended safety equipment.
Start-up
Be prepared to make an emergency shutdown when starting the
engine, turbine, or other type of prime mover, to protect against
runaway or overspeed with possible personal injury, loss of life, or
property damage.
Automotive
Applications
On- and off-highway Mobile Applications: Unless Woodward's control
functions as the supervisory control, customer should install a
system totally independent of the prime mover control system that
monitors for supervisory control of engine (and takes appropriate
action if supervisory control is lost) to protect against loss of engine
control with possible personal injury, loss of life, or property damage.

ProTech-SX Manual 26546V1
vi Woodward
Battery Charging
Device
To prevent damage to a control system that uses an alternator or
battery-charging device, make sure the charging device is turned off
before disconnecting the battery from the system.
Electrostatic Discharge Awareness
Electrostatic
Precautions
Electronic controls contain static-sensitive parts. Observe the
following precautions to prevent damage to these parts:
Discharge body static before handling the control (with power to
the control turned off, contact a grounded surface and maintain
contact while handling the control).
Avoid all plastic, vinyl, and Styrofoam (except antistatic versions)
around printed circuit boards.
Do not touch the components or conductors on a printed circuit
board with your hands or with conductive devices.
To prevent damage to electronic components caused by improper
handling, read and observe the precautions in Woodward manual
82715 , Guide for Handling and Protection of Electronic Controls,
Printed Circuit Boards, and Modules.
Follow these precautions when working with or near the control.
1. Avoid the build-up of static electricity on your body by not wearing clothing
made of synthetic materials. Wear cotton or cotton-blend materials as much
as possible because these do not store static electric charges as much as
synthetics.
2. Do not remove the printed circuit board (PCB) from the control cabinet
unless absolutely necessary. If you must remove the PCB from the control
cabinet, follow these precautions:
Do not touch any part of the PCB except the edges.
Do not touch the electrical conductors, the connectors, or the
components with conductive devices or with your hands.
When replacing a PCB, keep the new PCB in the plastic antistatic
protective bag it comes in until you are ready to install it. Immediately
after removing the old PCB from the control cabinet, place it in the
antistatic protective bag.

Manual 26546V1 ProTech-SX
Woodward vii
Regulatory Compliance
European Compliance for CE Marking
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)
Low Voltage Directive: Directive 2014/35/EU on the harmonisation of the laws of the
Member States relating to the making available on the market of
electrical equipment designed for use within certain voltage limits
ATEX – Potentially Explosive
Atmospheres Directive: Directive 2014/34/EU on the harmonisation of the laws of the
Member States relating to equipment and protective systems
intended for use in potentially explosive atmospheres
Zone 2, Category 3, Group II G, Ex nA IIC T4 X
Other European Compliance
Compliance with the following European Directives or standards does not qualify this product for
application of the CE Marking:
RoHS Directive: Exempt from 2002/95/EC of the European Parliament and of the
Council of 27 January 2003 on the restriction of the use of certain
hazardous substances in electrical and electronic equipment.
Exempt per Annex IA of Directive 2002/95/EC referring to
"monitoring and control instruments" within the meaning of
Category 9.
WEEE Directive: Exempt/Compliant as a component with 2002/96/EC of the
European Parliament and of the Council of 27 January 2003 on
waste electrical and electronic equipment (WEEE)
EuP Directive: Exempt/Compliant from 2009/125/EC of the European Parliament
and of the Council of 21 October 2009 establishing a framework
for the setting of ecodesign requirements for energy-related
products
North American Compliance
CSA: Certified for Class I, Division 2, Groups A, B, C, and D, T4 at 60
°C Ambient for use in the United States and Canada.
Certificate 160584-2217246
Other International Compliance
C-Tick:Declared to Australian Radiocommunications Act of 1992 and the
New New Zealand Radiocommunications Act of 1989.
TÜV: TÜV certified for SIL-2 per IEC 61508 Parts 1-7, Functional Safety
of Electrical / Electronic / Programmable Electronic Safety Related
Systems
The controller may only be installed in Class 2 Hazardous areas.

ProTech-SX Manual 26546V1
viii Woodward
Other Compliance
Gas Corrosion: IEC60068-2-60:1995 Part 2.60 Methods 1 and 4 (conformal coating)
Machinery
Protection: API670, API612, & API-611 compliant
Special Conditions for Safe Use
This Equipment is Suitable for use in Class I, Division 2, Groups A, B, C, D or Non Hazardous
Locations Only.
This equipment is suitable for use in European Zone 2, Group IIC environments or Non Hazardous
Locations Only.
Wiring must be in accordance with North American Class I, Division 2, or European Zone 2, Category
3 wiring methods as applicable, and in accordance with the authority having jurisdiction.
A fixed wiring installation is required and a switch or circuit breaker shall be included in the building
installation that is in close proximity to the equipment and within easy reach of the operator and that is
clearly marked as the disconnecting device for the equipment. The switch or circuit breaker shall not
interrupt the protective earth conductor.
Protective Earth Grounding is required by the input PE terminal.
Field wiring must be rated at least 85 °C for operating ambient temperatures expected to exceed 50
°C.
For European ATEX compliance on panel mount models, this equipment must be installed in an area
providing adequate protection against the entry of dust or water. A minimum ingress protection rating
of IP54 is required for the enclosure.

Manual 26546V1 ProTech-SX
Woodward ix
Personnel must discharge their electrostatic build up to the cabinet ground point
or use an ESD strap prior to touching the ProTech
®
interior surfaces if the
engine/turbine is operational. The unit is designed to allow one of three modules
be removed during operation. However, ESD to the remaining operational
modules may cause signal deviations. Signal deviations due to direct ESD may
be large enough to result in the operational modules tripping, shutting down the
engine since two modules are in a tripped mode. Signal deviations were noted
when ESD testing was done to the Speed pins, the IRIG-B pins, Service Port
pins, and RS-232/RS-485 Modbus communications port pins.
Do not remove module unless module is de-energized and all wire
connections have been disconnected
The Service Port (RS-232 communication) is not designed to remain connected
during operation except at servicing & programming intervals. It should not have
a cable connected to it other than during programming & servicing.
This device contains a single cell primary battery. This battery is not to be
charged and is not customer-replaceable.
Control is suitable for installation in pollution degree 2 environments.
Measurement inputs are classified as permanently connected IEC
measurement Category I and are designed to safely withstand
occasional transient overvoltages up to 1260 Vpk. To avoid the
danger of electric shock, do not use these inputs to make
measurements within measurement categories II, III, or IV.
Explosion Hazard—Do not connect or disconnect while circuit is live
unless area is known to be non-hazardous.
Substitution of components may impair suitability for Class I,
Division 2 or Zone 2 applications.
Risque d’explosion—Ne pas raccorder ni débrancher tant
que l’installation est sous tension, sauf en cas l’ambiance
est décidément non dangereuse.
La substitution de composants peut rendre ce matériel
inacceptable pour les emplacements de Classe I,
applications Division 2 ou Zone 2.

ProTech-SX Manual 26546V1
x Woodward
Safety Symbols
Both direct and alternating current
Alternating current
Direct current
Caution, risk of electrical shock
Caution, refer to accompanying documents
Protective conductor terminal
Frame or chassis terminal

Manual 26546V1 ProTech-SX
Woodward 1
Chapter 1.
General Information
Description
The ProTech-SX ("ProTech Simplex") is a safety PLC (programmable logic
controller) with integrated overspeed protection designed to safely shut down any
plant process equipment, engine, or steam, gas, or hydro turbine upon sensing a
safety event. This stand-alone safety system accepts two speed inputs and
seven discrete/analog inputs, uses programmed logic to determine when a safety
event has occurred, then issues system shutdown commands and alarms. The
ProTech-SX uses five fast-acting, configurable relay outputs and an analog
meter output to interface with the specific system or device being protected.
The ProTech-SX log function logs (saves to memory) all trips, alarms, trip valve
response times, and overspeed events. The trip log function uses a scrolling
buffer and records the last 50 sensed trip or alarm events and the last 20
overspeed events to memory, with associated times. Each log file can be viewed
from the unit’s front panel, or downloaded to a computer via the ProTech-SX
service tool program. This safety PLC utilizes non-volatile memory to ensure all
logged events are saved, even on loss of power.
The ProTech-SX provides various pre-defined and user-definable test features
including automated periodic tests.
There are several ways to interface with the ProTech-SX. The front panel allows
the user to view current values, and perform certain configuration and test
functions. All of the features and most of the information available from the front
panel is also accessible via the Modbus®* interface. Finally, the Programming
and Configuration Tool (PCT) is software that is run on a PC to define
configurable inputs and programmable logic, upload log files, and manage
settings files.
*—Modbus is a trademark of Schneider Automation Inc.
This product is designed for critical applications and when installed correctly
meets API-670, API-612, API-611, and IEC61508 (SIL-2) standards.
The following table shows the various hardware configurations (mounting
options, power supplies, and trip relay options) available:
Part Number Description
8237-1242 ProTech-SX - Panel Mount, HV/LV
8237-1243 ProTech-SX - Panel Mount, HV/HV
Table 1-1. Available ProTech-SX Models

ProTech-SX Manual 26546V1
2 Woodward
Applications
The ProTech-SX is designed to be applied as a safety system for any size
steam, gas, or hydro turbine, reciprocating engine, or plant process equipment.
This safety PLC’s fast (12 millisecond) response time, 0.5 to 32 000 rpm speed
range, and integrated overspeed and acceleration detection/protection
functionality, make it ideal for application on critical low-speed or high-speed
rotating motors, compressors, turbines or engines. This standalone safety device
accepts 7 discrete or analog inputs and two speed inputs. It provides 3
programmable relay outputs and an analog speed output in addition to the trip
relay outputs. Configurable logic allows the customization required to meet
specific application requirements to ensure plant protection.
Alternatively, this standalone safety device can be configured to protect any plant
system or device, and report the system’s or device’s status to the plant DCS.
The ProTech-SX control’s versatile inputs, outputs, programming environment,
and communications make it ideal as a safety protection device for use in small
applications that could possibly reach an unsafe state or condition and that must
communicate directly to the plant DCS. The ProTech-SX is designed for critical
applications where both personnel safety and unit availability (operation run time)
is a concern or necessity.
Figure 1-1. Typical ProTech-SX Application

Manual 26546V1 ProTech-SX
Woodward 3
Figure 1-2. Typical Gas Turbine Application
Figure 1-3. Typical Safety PLC Application
The ProTech-SX is certified as an IEC61508 SIL-2 (Safety Integrity Level 2)
safety device and can be applied as a stand-alone IEC61508-based device or
within an IEC61511-based plant safety system.

ProTech-SX Manual 26546V1
4 Woodward
Chapter 2.
Installation
Introduction
This chapter provides instructions on how to mount and connect the ProTech-SX
into a system. Hardware dimensions, ratings, and jumper configurations are
given to allow a customer to mount, wire, and configure the ProTech-SX package
to a specific application.
Electrical ratings, wiring requirements, and options are provided to allow a
customer to fully install the ProTech-SX into a new or existing application.
Unpacking
Before opening the shipping packaging, inspect the shipping container for
damage and document any damage.
Be careful when opening and removing the shipping container. You may retain
the original shipping container for unit storage or for return shipping when
suggested refurbishment is required. (See Asset Management chapter for
storage details.)
Be careful when unpacking the ProTech-SX system from the shipping container.
The precautions called out in the Electrostatic Discharge Awareness section
should be followed during unpacking, handling, installation and operation during
maintenance.
Once removed from the shipping packaging, check the device for signs of
damage such as a bent or dented case and loose or broken parts. If damage is
found, notify the shipper immediately.
System Installation Procedure
1. Review the system manual to gain a complete understanding of the
ProTech-SX system.
2. Create a site specific wiring diagram by referencing included wiring
diagrams & constraints, then perform mechanical and electrical installation
following this chapter’s instructions.
3. Visual inspection
a. Verify that all mounting hardware is tightened and that no wires are
pinched.
b. Verify that no wiring insulation is nicked or abraded.
c. Verify that all terminal blocks are installed and terminal screws are
tight. (Follow the control wiring instructions for all terminal blocks.)
d. If used, verify that speed sensors have been correctly installed, and
have the correct clearance from the speed gear (adjust if necessary).
See manual 82510, Magnetic Pickups and Proximity Switches for
Electronic Governors.
4. Apply power to the module, and verify that the module boots up and that its
front panel screen displays turbine speed.
5. If no special programming logic is used skip to step 8.

Manual 26546V1 ProTech-SX
Woodward 5
6. If special programming logic is required install the ProTech-SX
Programming and Configuration tool (PCT) from provided PCT Installation
CD on to the desired computer and create the system application program
7. Once the system application program is complete, connect an extension
(i.e. straight-through, not null-modem) RS-232 serial cable from the
respective computer to the module’s service port, and download the
program into the module
8. From the module’s front panel, enter the configuration mode and verify that
each of the overspeed and over-acceleration settings is correct.
9. Perform a full system checkout by verifying that all system trips, alarms, and
test routines function correctly before starting the machinery/system.
10. When ready, start the turbine/machinery following the equipment
manufacturer’s recommended starting procedure
Enclosures
The ProTech-SX panel-mounted enclosure model is designed for installation
within a control room panel or cabinet, and by itself cannot be bulkhead mounted.
Once installed within an IP56 rated panel or cabinet, the ProTech-SX is rated for
IP56-based environments. A gasket is attached to the rear side of the package’s
bezel to properly seal the ProTech-SX control’s face-plate and around the
mounting studs to a panel. Field wiring access is located on the control’s back
side. Figures 2-1 and 2-2 display the Panel-Mount ProTech-SX model’s layout
and mounting pattern.
Figure 2-1a. Typical ProTech-SX Panel Mount Package—Front View

ProTech-SX Manual 26546V1
6 Woodward
Figure 2-1b. Typical ProTech-SX Panel Mount Package—Rear View with Cover
Figure 2-2a. Mounting Outline Diagram for ProTech-SX Panel-Mount Models

Manual 26546V1 ProTech-SX
Woodward 7
Figure 2-2b. Mounting Outline Diagram for ProTech-SX Panel-Mount Models
Mounting Location Considerations
Consider the following general requirements when selecting the mounting
location:
Adequate ventilation for cooling
A location that will provide an operating temperature range of –20 to +60 °C
(–4 to +140 °F)
The ProTech-SX weighs approximately 2.2 kg (4.9 lb)
Space for opening & servicing
Space for installing & removing panel mount covers
Space for installing cable strain relief as needed
Vertical orientation of the unit
Protection from direct exposure to sunlight, water, or to condensation-prone
environments
Protection from high-voltage or high-current devices which produce
electromagnetic interference

ProTech-SX Manual 26546V1
8 Woodward
Avoidance of vibration
A location that has H2S and SO2gases at or below the levels classified in
international standard IEC 721-3-3 1994 - environment Class 3C2
Maximum purge pressure: 4 psi
Environmental Specifications
Operating Temperature –20 to +60 °C
Storage Temperature
(Non-operational) –20 to +65 °C
Relative humidity up to 95% non-condensing
Vibration 2 hrs/axis, 0.04 G2/Hz, 1.04 Grms, 10–500 Hz,
three axis
Shock: ±3 pulses, 30 G, 11 ms half sine shock, three axis
IP rating 56
Altitude up to 3000 meters above sea level
Electromagnetic Compatibility Emissions: EN61000-6-4
Immunity: EN61000-6-2
Overvoltage Category II (per IEC 60664-1)
Pollution Degree 2 (per IEC 60664-1)
Weight: Approximately 2.2 kg (4.9 lb)
Table 2-1. Environmental Specifications
Power Supply Requirements
Depending on the ProTech-SX model purchased, the module will accept either
two high voltage (HV) input power sources or one HV input power source and
one low voltage (LV) input power source.
Power Supply Specifications
Number of Inputs 2, Input range depends on model (see following
tables):
2 High Voltage Inputs OR
1 High Voltage and 1 Low Voltage
Wiring Constraints Each power supply input must be provided with its
own breaker. This is to facilitate both on-line-removal
of a module, and also to protect other power supplies
from tripping while connected to a common input
power circuit.
Table 2-2. Power Supply Specifications
High Voltage Input
Voltage Input Range 90 – 264 Vac/47–63 Hz, or 100 – 150 Vdc @ 30 W
With Nominal 115 Vac / 240 Vac / 125 Vdc
Current Input Max
(Note 1)
0.5 A @ 90 Vac
0.22 A @ 264 Vac
0.25 A rms @ 110 Vdc
0.18 A rms @ 150 Vdc
Inrush Current 10 A at 115 Vac, 20 A @ 220 Vac
Reverse Polarity
Protection
Yes, for dc connection
Interrupt Time 45 ms, when operating on one power supply only
Table 2-3. High Voltage Input Specifications