Rockwell Automation 440G-LZ User Manual

Guardmaster® 440G-LZ Guard Locking Switch
User Manual

Important User Information

IMPORTANT

Solid-state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication

SGI-IN001_-EN-P
http://www.rockwellautomation.com/literature/

equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide
variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot
assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.

available from your local Rockwell Automation sales office or online at

) describes some important differences between solid-state

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment,
which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.

Identifies information that is critical for successful application and understanding of the product.

It is recommended that you save this user manual for future use.

2 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Read this preface to become familiar with the rest of the manual.
It provides information concerning:

• who should use this manual

• the purpose of this manual

• related documentation

• conventions used in this manual

Preface

Who Should Use This Manual

Purpose of This Manual

Conventions Used in This
Manual

Use this manual if you are responsible for designing, installing,
programming, or troubleshooting systems that use the Guardmaster
440G-LZ guard locking switch.

You should have a basic understanding of electrical circuitry and
familiarity with safety-related systems. If you do not, obtain the proper
training before using this product.

This manual is a reference guide for the Guardmaster 440G-LZ guard
locking switch. It describes the procedures you use to install, wire, and
troubleshoot your switch. This manual:

• Explains how to install and wire your 440G-LZ

• Provides an overview of the Guardmaster 440G-LZ guard locking

switch

The following conventions are used throughout this manual:

• Bulleted lists such as this one provide information, not procedural
steps.

• Numbered lists provide sequential steps or hierarchical
information.

Additional Resources

The following document offers additional information about related
Rockwell Automation products:

Resource Description

Allen-Bradley Industrial Automation Glossary,
publication AG-7.1

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 3

Glossary of industrial automation terms and
abbreviations

Preface

Terminology

You can view and download publications at http://

www.rockwellautomation.com/literature/ . To order paper copies of

technical documents, contact your local Rockwell Automation distributor
or sales representative.

OSSD Output Signal Switching Device. Typically designates a pair of solid state

signals pulled up to the DC source supply. The signals are usually tested for
short circuits to the DC power supply, short circuits to the DC common, and
short circuits between the two signals.

Standard coding Same as Low coding as defined in EN/ISO 14119:2013

Unique coding Same as High coding as defined in EN/ISO 14119:2013

4 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

General Description

Safety Concept

Table of Contents

Important User Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Preface

Who Should Use This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Purpose of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Conventions Used in This Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Additional Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Chapter 1

Guardmaster 440G-LZ Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Assembly Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Packaging Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Chapter 2

Safety Standards Applied to Guardmaster 440G-LZ. . . . . . . . . . . . . 11

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Safety Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation and Wiring

Description of Operation

Chapter 3

General Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Pair Proximity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Orientation of Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Setting the Actuator Direction of Approach . . . . . . . . . . . . . . . . . . . . 15

Mounting the Assembled Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Mounting the Switch Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Setting Actuator to Switch Alignment . . . . . . . . . . . . . . . . . . . . . . . . . 17

Actuator RFID Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

LED Error Codes During the Learning Process . . . . . . . . . . . . . . . . . . 19

Proving Basic Lock Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Connection Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Chapter 4

Description of LEDs During Operation . . . . . . . . . . . . . . . . . . . . . . . . . 23

Status/Diagnostic LED During Troubleshooting . . . . . . . . . . . . . . . . 24

Auxiliary Out Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Guardmaster 440G-LZ Wiring with GSR Relay . . . . . . . . . . . . . . . . . . 25

Guardmaster 440G-LZ Wiring with Point I/O . . . . . . . . . . . . . . . . . . . 26

Guardmaster 440G-LZ Wiring with GLP Relay . . . . . . . . . . . . . . . . . . 26

Guardmaster 440G-LZ Troubleshooting Series Circuit . . . . . . . . . . 27

Unit Response Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

OSSD Output Test Pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Auxiliary/Manual Release. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 5

Table of Contents

Appendix A

Specifications

Typical Installations

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Safety Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Operating Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Environmental and General Protection. . . . . . . . . . . . . . . . . . . . . . . . . 31

Certifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Compliance to European Union Directives . . . . . . . . . . . . . . . . . . . . . 32

Overall Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Catalog Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Appendix B

Switch Mounted Parallel to Hinge Axis . . . . . . . . . . . . . . . . . . . . . . . . . 35

Switch Mounted Perpendicular to Hinge Axis . . . . . . . . . . . . . . . . . . 36

Switch Mounted to a Sliding Guard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

General Description

Chapter 1

Guardmaster 440G-LZ
Overview

This Guardmaster 440G-LZ guard locking switch functions by extending a
locking bolt from the switch through a hole in the actuator, thus
preventing the opening of a guard.

The locking bolt drive mechanism and logic ensure that the locking bolt
is allowed to extend only when the corresponding actuator is detected
within range.

The appropriate actuator is detected by RFID coding.

This version of the Guardmaster 440G-LC guard locking switch features
OSSD outputs that are enabled only when the locking bolt is sensed in its
extended position in the actuator, which happens only when the guard is
both closed and locked.

The locking bolt drive mechanism uses a bi-stable solenoid; as a result,
the switch consumes very little electrical power, with peak currents
occurring only briefly, upon start-up and after each movement of the
locking bolt.

Because of its bi-stable drive, not only does the device consume minimal
power, but it does not produce heat whether in its locked or unlocked
condition.

Despite the bi-stable design of the locking bolt drive, the device logic and
functionality are configured to replicate the functionality of a power-to­release or power-to-lock solenoid-operated switch (depending on type).

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 7

Chapter 1 General Description

Locking bolt

Act uato r

Switch body

Actu ator
mounting bracket

QR Code

Alignment guide

Guardmaster 440G-LZ
Assembly Overview

Packaging Contents

The box includes the following components:

Switch body including connection lead: 3 m or 10 m flying lead or
pigtail equipped with M12 QD connector

Actuator mounting bracket

8 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

General Description Chapter 1

Actuator

Actuator-to-actuator mounting bracket mounting screws: 2 x T10
To r x

Alignment guide

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 9

Chapter 1 General Description

Notes:

10 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Safety Concept

Chapter 2

Safety Standards Applied to
the Guardmaster 440G-LZ
Guard Locking Switch

Introduction

Safety Certification

The Guardmaster 440G-LZ satisfies applicable requirements in the
following standards related to functional and machinery assembly:

• IEC 60947-5-1: 2003+A1: 2009

• IEC 60947-5-3: 1999/A: 2005

• IEC 61508:2010 SIL 3

• IEC 62061:2005 SIL 3

• EN/ISO 13849-1:2008/AC: 2009 Performance Level e (PLe), Category

4

• EN/ISO 14119:2013

• UL 508 17

This section describes the safety performance level concept and explains
how the Guardmaster 440G-LZ meets the requirements for SIL 3, Cat. 4 or
Performance Level “e” (PLe) applications.

The Guardmaster 440G-LZ is certified for use in safety applications up to
and including SIL 3 according to IEC 61508 and IEC 62061 with a proof test
interval of 20 years, Performance Level PLe and Category 4 in compliance
with ISO 13849-1.

th

Edition dated 3/19/2013

Safety requirements are based on the standards applicable at the time of
certification.

The TÜV Rheinland group has approved the Guardmaster 440G-LZ for use
in safety-related applications where Performance Level “e” is required for
the door position and lock monitoring functions.

The 440G-LZ must be installed in accordance with the applicable
regulation and standards.

While the 440G-LZ can be used for SIL 3, PLe and Category 4 applications,
the installer must comply with guard requirements (e.g. EN/ISO13854
and EN/ISO 13857) and in some cases also minimum (safe) distance
requirements (e.g. EN/ISO 13855).

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 11

Chapter 2

The installed system, including the safety control system and the means
by which the machine stops, must achieve the needed safety
performance. The 440G-LZ is one element in the safety system.

Additional guidance on guards, guard locking and guard interlocking
may be found in:

• EN/ISO 12100

• EN/ISO 13854

• EN/ISO 13855

• EN/ISO 13857

• EN/ISO 14119

• EN/ISO TR 24119

• EN/ISO 14120

• Application specific C-Level standards

12 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Installation and Wiring

Chapter 3

General Considerations

The 440G-LZ guard locking switch is designed for use on guards that are
engineered to be rigid without sag. A separately mounted latch (e.g.
magnetic or mechanical) and mechanical stop are required.

It can be used on Full Body Access guards that do not require escape
release, emergency release or remote release guards, and in any situation
where the alignment tolerance falls within the stated specification.

Installation must be in accordance with the present manual and must be
carried out by qualified personnel exclusively. The 440G-LZ guard locking
switch is intended to be part of the safety-related control system of a
machine. Before installation, a thorough risk assessment must be
performed to determine whether the specifications of this device are
suitable for all foreseeable operational and environmental characteristics
of the application.

Refer to the Specifications section of this manual. Use appropriate screws,
bolts, or nuts fitted by tools to mount the switch and actuators to avoid
tampering.

Do not over-torque the mounting hardware.

Pair Proximity

ATTENTION: For the switch, actuator and actuator mounting bracket:

• Only use the designated mounting holes.

• Never drill or use to support other structures such as a conduit, cable
ways, or other hardware.

During installation, make sure you observe the following restriction: you
must maintain a minimum distance between each pair of switches you
mount. Make sure to maintain a minimum distance of 120 mm (4.72 in.)
between any two switches and actuators, as indicated in the following
illustrations.

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 13

Chapter 3 Installation and Wiring

120 mm

120 mm

Orientation of Switches

If the recommended minimum proximity dimension is not observed, the
units will fault.

Can be used in all mounting orientations.

14 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Installation and Wiring Chapter 3

Align the white triangles.

0.4 Nm

2 x T10 Torx screws

Setting the Actuator
Direction of Approach

The actuator can approach the switch from all four directions.









Ensure the white arrow on the actuator aligns with the white arrow on
the switch body.

The actuator must be fitted to the actuator mounting bracket in such a
manner that the white alignment triangles marked on both the actuator
and switch body are in the installed position.



Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 15

Ensure the locking bolt enters the actuator mounting bracket first.

Chapter 3 Installation and Wiring

Mounting the Assembled
Actuator

Ensure two fasteners are used with at least one fastener fitted close to the
actuator bracket bend.

The following drawings show mounting possibilities when attaching to
extruded aluminum profile and flat surface guard doors.

Removal of the Actuator Plug

This plug may be broken out from the actuator if a through hole is
required to prevent a food trap when mounted on the hazard side of a
guard door.

The plug can be broken out by using a screwdriver and twisting until it
comes apart.

16 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Installation and Wiring Chapter 3

3 x M5

G

H

Mounting the Switch Body

Setting Actuator to Switch
Alignment

Three M5 fasteners (not provided) are required for proper mounting to a
rigid guard door frame.

There are three ways to achieve proper alignment.

1. By setting gap

2.5 mm (0.09 in.) [

2. By mounting hole alignment

6.5 mm (0.25 in.) [4…9 mm (0.15…0.35 in.)]

3. Using the alignment
provided

“G”
0…5 mm (0…0.19 in.)

”H”

guide

]

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 17

Chapter 3 Installation and Wiring



ATTENTION: After installation, ensure

that there is no possibility of lifting the
actuator over the extended locki ng bolt.

ATTENTION: After installation, ensure

there is no possibility of collision when
the actuator approaches the switch body.

Actuator RFID Setting

Switches with standard coded actuators

These switches are ready for use and need no special RFID setting.

Switches with unique coded actuators

Before use, the switches must first “learn” a new RFID guard actuator. This
task is not performed at the factory, as there are two possible methods:

• “Multi-time” learning: the switch can learn up to eight actuators
consecutively.

• “One-time” learning: The switch learns one actuator only, for life,
irreversibly.

The “one-time” learning method may be invoked at any time, not just
during RFID setting. For example, the switch could “multi-time” learn four
different actuators consecutively, then complete a “one-time” learning
process that would prevent it from learning any additional actuators.

Learning the First “Multi-Time” Actuator

Connect the switch to 24V DC (see the wiring diagrams on page 21
ensure that the lock command is off.

), and

The Status/Diagnostic LED will blink a number of times corresponding to
the number of times a new actuator may be acquired (a total of eight
times when the switch is new), then repeat, indicating that the switch has
yet to learn a new actuator.

The switch automatically starts the learning process as soon as an
actuator is placed in the guard-closed position of the switch.

18 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Installation and Wiring Chapter 3

Learning Sequence as Indicated by the Status/Diagnostic LEDs

Actuator present Blinking green, 1 Hz rate

Verifying actuator Blinking green/red, 1 Hz rate (15 sec)

Programming switch (15 sec) Blinking green/red, 4 Hz rate (15 sec)

Program finalization Blinking green (remaining number of times

a new actuator may be acquired, 15 sec)

Ready state (learning process is complete) Solid green (Power-to-release)

Solid red (Power-to-lock)

Learning Additional “Multi-Time” Actuators

Mount the new actuator on the guard and repeat the above process.,
introducing the actuator to the switch as previously described. During
program finalization, the LED will blink green a number of times
corresponding to the number of remaining learnable actuators.

Note: Once a new actuator is learned by a unique coded switch, any
previous actuator is no longer usable by that switch.

“One-time” Learning Process

Proceed just as in the “multi-time” teaching process described above,
with the following exception: at the programming finalizing (last) stage,
withdraw the actuator from the switch, until the LED turns solid red, then
immediately reposition the actuator near the switch. This process must
be executed within 15 seconds.

The LED blinks, then turns solid to indicate that the learning process is
complete.

Power-to-release Solid green

Power-to-lock Solid red

Note: For power-to-release switches, you will need to execute a manual
release in order to withdraw the actuator away from the switch as
described above.

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 19

Chapter 3 Installation and Wiring

Status/Diagnostic LED Error
Codes During the Learning
Process

Proving Basic Lock Function

The following code sequences persist until a Power On/Off cycle is
completed.

Status/Diagnostic LED Flashes (4 Hz) Error Code

Green OSSD inputs not valid

Red-red-red-green Cannot learn a standard actuator

Red-red-red-green-green Actuator already learned

Red-red-red-green-green-green Bad RFID; actuator moved out of range

Red-red-red-green-green-green-green Exceeded learning eight actuators

Red-red-red-green-green-green-green-

Unit locked: cannot learn another actuator

green

To prove basic lock function and to verify correct actuator alignment, it
may be necessary to extend the locking bolt. The locking bolt cannot be
extended by mechanical means; you must proceed electrically. The
following basic connections are required:

• Pin 2 (brown wire) must be connected to 24V DC

• Pin 7 (blue wire) must be connected to 0V (GND)

In the case of a power-to-release switch, the locking bolt will extend
when the guard is shut and the actuator is aligned. Connect Pin 3 (green
wire) to 24V DC to unlock the switch and withdraw the locking bolt.

If power is removed from a power-to-release switch in the locked
position, the locking bolt will remain in its extended position (switch
locked). Use the manual auxiliary release to unlock the switch.

In the case of a power-to-lock switch, connect Pin 3 (green wire) to 24V
DC to lock the switch (i.e. extend the locking bolt). Disconnecting Pin 3
will unlock the switch.

If power is removed from a power-to-lock switch in the locked position,
the switch unlocks.

In either type of lock, the locking bolt never extends in the absence of the
actuator.

20 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Wiring























2

1

7

6

3
8

4

5

8-Pin Micro (M12)

8-Pin Cordset
889D-F8AB-* or
cable version

Installation and Wiring Chapter 3

3 Lock Command

8 Safety A+

4 Safety B+

5 Safety A

Color Function Pin

White Aux 1

Brown 24V DC+ 2

Green Lock 3

Yellow Safety B+ 4

Grey Safety A 5
Pink Safety B 6
Blue Gnd/0V 7

Red Safety A+ 8

2 24V DC+

Keyway

1 Aux
7 0V

6 Safety B

Connections Systems

The following connection system components facilitate connection:

 Safety-wired Splitter/T-Port Cat. No 898D-438Y-D8

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 21

Chapter 3 Installation and Wiring

PWR
OSSD 1+

OSSD 2+

NA

Pin 1
Pin 2
Pin 3
Pin 4

NA

Pin 5

Safety-wired Shorting Plug Cat. No 898D-418U-DM

2

5

3

1

4

8-pin Device Patchcords Cat. No.

1 meter, 8-pin 889D-F8ABDM-1

2 meters, 8-pin 889D-F8ABDM-2

5 meters, 8-pin 889D-F8ABDM-5

10 meters, 8-pin 889D-F8ABDM-10

Note: Add the letter “S” to above cat. nos. for stainless steel connectors;
e.g. 889DS-F8ABDM-1

5-pin Patchcords Cat. No.

1 meter, 5-pin 889D-F5ACDM-1

2 meters, 5-pin 889D-F5ACDM-2

5 meters, 5-pin 889D-F5ACDM-5

10 meters, 5-pin 889D-F5ACDM-10

Note: Add the letter “S” to above cat. nos. for stainless steel connectors;
e.g. 889DS-F5ACDM-1

5-pin Cordsets

Cat. No.

2 meters, 5-pin 889D-F5AC-2

5 meters, 5-pin 889D-F5AC-5

10 meters, 5-pin 889D-F5AC-10

Note: Add the letter “S” to above cat. nos. for stainless steel connectors;
e.g. 889DS-F5AC-1

More detailed information may be found online at ab.com/product

catalogues/ (search for “Connection Systems”).

22 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Description of Operation

Chapter 4

Status/Diagnostic LEDs
During Operation

During operation, the LEDs indicate the status of the Guardmaster
440G-LZ guard locking switch as follows:

Power -to-Lock
Versions

Power on and lock
CMD off

Lock CMD on, door
open

Lock CMD on, door
closed

Lock CMD on, door
closed

Power -to­Release Versions

Power on with
door open

Power on with
door closed

Guard
Status

Open or
closed

Open On Off or onUnlocked Fast flash green Off

Closed On Off Locked Slow flash green Off

Closed On On Locked Solid green On

Guard
Status

Open Off Off or onUnlocked Blinks 6x green,

Closed Off Off Locked Blinks 6x green,

Lock

OSSD

CMD

Input

Off Off or onUnlocked Blinks 6x green

Lock

OSSD

CMD

Input

Lock
Status

Lock
Status

LED
Status

then solid red

LED
Status

then blinks 1x
red, followed by
fast flash green

then blinks 1x
red, followed by
slow flash green

OSSD
Status

Off

OSSD
Status

Off

Off

Power on with
door open, and
OSSD input active

Unlock CMD on,
and door closed or
open

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 23

Closed Off On Locked Blinks 6x green,

then blinks 1x
red, followed by
solid green

Open or
closed

On Off or onUnlocked Solid red Off

On

Chapter 4 Description of Operation

Status/Diagnostic LEDs
During Troubleshooting

This section explains the meaning of the various LEDs during
troubleshooting.

LED Status Switch Status

Off Not powered

Solid green Door shut, locked, and OSSDs are ON.

Fast flash, green (4 Hz) Waiting to lock, actuator is not within range

Slow flash, green (1 Hz) Door shut, locked. OSSDs are OFF because there’s no safety

input signal.

Solid red (PTL versions) Door open or shut, not locked. No lock signal.

Solid red (PTR versions) Door open or shut, not locked. Unlock signal is ON.

Flashing 3x green, then red - repeats Attempting to lock/unlock, actuator not aligned.

Flashing 3x green, then red ­repeating, then finally fast flash red

Slow flash, red (1 Hz) OSSD fault, check outputs are not shorted to GND, 24V DC,

Fast flash, red (4 Hz) General fault. Cycle power to reset.

Failure to lock/unlock. Align actuator, then cycle power.

or each other. Cycle power to reset.

Auxiliary Out Function

The Auxiliary Out only changes state when the door is shut and locked,
regardless of OSSD status.

Power-to-Lock Versions Lock CMD Lock Status Auxiliary Out

Door open On or off Unlocked On

Lock CMD on, door closed On Locked Off

Power-to-Release Versions Lock CMD Lock Status Auxiliary Out

Door open On or off Unlocked On

Lock CMD off, door closed On Locked Off

24 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Guardmaster 440G-LZ Wiring

889D-F8AX-X

Pigtail

Red

Brn

Wht

Grn

Pnk Gry

Ye l

Blu

Power

In1
In2
Out
Logic

A2

A1

+-

S11

S21

S12

S22

S32

S42

L12

L11

Y32

S34

13

14

23

24

24VDC

IN1

DI

IN2

0

1

2
3

4

56

7

8

LOGIC

Test Out

A2A1

+-

B2 37B1 47 4838

L12 L11 X32 17

27

2818

24VDC

EMD

171827

28

373847

48

N/C

E-Stop

K1

K2

M

K1

K2

Reset

440G-LZS

24V DC Supply

24V DC COM

with GSR Relay

Description of Operation Chapter 4

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 25

Chapter 4 Description of Operation

1734-IB8S

I0 I4 I5I1

I2 I6 I7I3

COM COM COMCOM

T0 T2 T3MT1

1734-OB8S

O0 O4 O5O1

O2 O6 O7O3

COM COM COMCOM

889D-F8AX-X

Pigtail

COM COM COM COM

M

K1

K2

Safety
Reset

Faul t
Reset

N/C

Red

Brn

Wht

Grn

Pnk

Gry

Yel

Blu

24V DC Supply

24V DC COM

K1

K2

Unlock
Request

Unlock
Signal

E-Stop
800FM-MT44
800F-MX02S

Reset

GLP

440R-GL2S2P

A2S12 S22

L11

L12

L61

51

P12 P22

A1X14 X24 S54

S44

AP

Y32

Reset &
Gate Lock
Request

Gate
Unlock
Request

Y32

DI

440R-D22R2

S32

A1 13

S21S11 S22S12 S34

S42

L12

14

872C-D8NP18-E5 (2)

24V DC, Class 2 Supply

24V DC COM

0

1

4

5

6

7

8

9

SL2

2

3

0

1

3

4

5

6

7

8

9

SL1

2

LOGIC

0

1

2
3

4

5

6

7

9

8

E-Stop
800FM-MT44
800F-MX02S

0

1

2
3

4

56

7

8

LOGIC

Brn

Brn

Blk

Blk

Blu

Blu

23

24

Safety
Status

to PLC

L11 A2

Brn Red Yel

Grn

Wht Blu Gr y Pnk

Reset

440G‐LZS21SPRA

SLS
Request
to PLC

+24V DC

COM

Status

Safety Input 1

Safety C ommon

Safety Input 2

K 300

Safe Torque-o (STO)
Connector With
Wiring Header

Drive Status
to PLC

Stop/Start/SLS
from PLC

Gate Open

- Unlocked

Guardmaster 440G-LZ Wiring
with Point I/O

Point to Point I/O with Unlock request.

Guardmaster 440G-LZ Wiring
with GLP Relay

26 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

E-Stops with Speed Monitoring, Guard Locking and Servo Drive

Troubleshooting Series

Actuator 1

Actuator 2

Actuator 3

Switch 1

Switch 2

Switch 3

RTN

24V DC

Power

Supply

+24

1606-

XL120D

Green

Pink

Grey

Brown

Red

Yel

White

A2

440R-N23132

Initial Conditions:
All switches are
locked

Switch 1 receives
Unlock command
(guard can then
be opened).

Lock/unlock

command

Switch 2 drops the 24 volts
(red and yellow) from
switch 1 OSSD outputs.
Green LED ashes.

Switch 3 drops the 24 volts
(red and yellow ) from
switch 3 OSSD outputs.
Green LED ashes.

Pink

Grey

Red

Yel

White

Green

Blue

Pink
Grey

Red

Yel

White

S11 41332313S12S52

S21 S22 42342414A1S34

200 ms150 ms100 ms0 ms

650 ms625 ms600 ms0 ms

Switch 1 guard is
closed

Switch 1 OSSD
outputs are
energized.

Switch 2 OSSD inputs (red
and yellow) transition to
24V DC from switch 1 OSSD
outputs. Switch 2 OSSD
outputs are energized.

Switch 3 OSSD inputs (red
and yellow) transition to
24V DC from switch 2
OSSD outputs. Switch 3
OSSD outputs are energized.

Green

Brown

Blue

Brown

Blue

Switch 1

Switch 2

Switch 3

Circuit

+24

24V DC

Power

Supply

1606-

XL120D

RTN

Switch 1 Switch 2 Switch 3 Switch 4 Switch 5

Description of Operation Chapter 4

Green

Yellow

White

Red

Lock/Unlock Lock/UnlockLock/UnlockLock/UnlockLock/Unlock

Recoverable

Actuator 1 is in sensing range
and guard is locked.

Fault

Guard 1 functions properly.
OSSDs are energized to 24V.
Green LED is ON.

Unit Response Times When
Connected in Series

Blue

Brown

Grey

Pink

Green

White

+24V +24V
+24V +24V

Actuator 2 is in sensing range
and guard is locked.
Guard 2 functions properly.
OSSDs are energized to 24V.
Green LED is ON.

Brown

Yellow

Grey

Red

Blue

Pink

Green

Actuator 3 is in sensing
range and guard is locked.
Guard 3 has a fault.
See Diagnostic table.
Red LED is ashing.

Brown

Yellow

White

Red

Grey

Pink

Blue

Green

White

0V

Actuator 4 is in sensing range
and guard is locked. Guard
4 functions properly. Series
inputs are 0V. OSSDs are
de-energized to 0V. Green
LED is ashing to indicate
series inputs are not 24V.

Yellow

Red

Blue

Brown

Grey

Pink

Green

0V0V
0V

Actuator 5 is in sensing range
and guard is locked. Guard 5
functions properly.
Series inputs are 0V. OSSDs
are de-energized to 0V. Green
LED is ashing to indicate
series inputs are not 24V.

Brown

Yellow

White

Red

Grey

Pink

Blue

0V
0V

OSSDs
are OFF

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 27

Chapter 4 Description of Operation

Safety A

Safety B

Occurs every 25 ms

Occurs every 25 ms

Occurs every 11 sec

300 μs

300 μs

˂ 600 μs

˂ 600 μs

Occurs every 11 sec

OSSD Output Test Pulses

Auxiliary/Manual Release

The Guardmaster 440G-LZ guard locking switch uses test pulses to check
for OSSD output faults. This process is illustrated graphically as follows:

The manual release is provided to allow you to
unlock the guard door in the event of
unforeseen and uncommon circumstances.

< 2.5 (0.098) dia.

If power is supplied to the switch and the latter
is in its locked state, invoking the auxiliary
release will cause the switch to enter a fault
condition (blinking red LED).

To reset the switch, simply cycle the power.

28 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Specifications

Appendix A

Introduction

Safety Ratings

This appendix provides the specifications for the Guardmaster 440G-LZ
guard locking switch.

Note: The holding force Fzh is in accordance to EN/ISO 14119:2013,
clause 5.7.4. Additional validation was performed in accordance with IEC
60947-5-1:2009, clause C.1.2.2.

Standards IEC 60947-5-3, IEC 60947-5-1, IEC 61508, EN/

ISO 13849-1, IEC 62061, EN/ISO14119, UL 508

Safety Classification: Guard door sensing and
lock monitoring

Functional Safety Data: Guard door sensing and
lock monitoring

PLe Category 4 per ISO 13849-1, SIL 3 per IEC
61508 and IEC 62061

PFHD: 9.1 x 10
Dual channel interlock may be suitable for use

in applications up to PLe (in accordance with
ISO 13849-1) and for use up to SIL 3 systems (in
accordance with IEC 62061), depending on
application characteristics.
Mission time/PTI: 20 years

-10

Operating Characteristics

440G-LZS21*PR* Power-to-release

440G-LZS21*PL* Power-to-lock

Switch function OSSDs enable when guard closed and locked

Torque for M5 mounting of switch and actuator
mounting bracket

Locking bolt insertion for assured locking and
holding force

Approach speed Minimum of 2 mm/s

Locking bolt alignment tolerance X, Y, Z Maximum of +/- 2.5 mm

Holding force Fmax (EN/ISO 14119) 1,690 N

Holding force Fzh (EN/ISO 14119) 1,300 N

Maximum output current (each output) 200 mA

Quiescent power consumption, Locked or
Unlocked

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 29

2 Nm max.

Minimum of 5 mm (0.19 in.), maximum of 10
mm (0.39 in.)

2.5 W

Appendix A Specifications

Peak current, during turn-on or after Lock/
Unlock operation

Duration of peak current, at turn-on or after
Lock/Unlock operation

Maximum number of switches connectable in
series

Operating voltage Ue 24V DC + 10% / -15% Class 2 SELV

Maximum frequency of operating cycles 0.2 Hz

Dwell time between subsequent locking/
unlocking

Response time (Off) 100 ms first switch, +50 ms for each additional

Risk time (according to IEC 60947-5-3) 100 ms

Start-up time (availability) 5 s

Usage category (IEC 60947-5-2) DC-13 24V 200 mA

Insulation voltage Ui (IEC 60947-5-1) 75 V

Impulse withstand voltage Uimp (IEC 60947-5-1)1 kV

Pollution degree (IEC 60947-5-1) 3

400 mA

100 ms

Unlimited, See Chapter 4, Unit Response Times

2.5 s

switch

Outputs (Guard Closed
and Locked)

Manual (auxiliary) release Built-in

Emergency release No

Escape release No

Protection class (IEC 61140) Class II

* See nomenclature section below, and cat. nos. section on page 34.

Nomenclature for Complete Switches

440G-LZS21

abc

S Standard Coding R Power-to-Release A 3 m Cable

U Unique Coding L Power-to-Lock B 10 Cable

Outputs Description/Status

Safety 2 x PNP, 0.2 A max. / ON (+24V DC)

P

abc

H M12 8-pin

Auxiliary 2 x PNP, 0.2 A max. / OFF (+0V DC)

30 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Specifications Appendix A

Environmental

General

Operating temperature [C (F)] 0…55º (+14…131º)

Storage temperature [(C (F)] -25…75º (+13…167º)

Operating humidity 5…95%, relative

Enclosure ingress rating NEMA 3, 4x, 12, 13, IP66, IP67, IP69K

Shock and vibration IEC 68-2-27 30 g, 11 ms/IEC 68-2-6 10…55 Hz

Hygienic ISO 14159:2004 and EN 1672-2005 (for part of

the machine defined as “food splash area”)

Washdown Suitable for sodium hydroxide-based

washdown fluids

Radio frequency / EMC IEC-60947-5-3, FCC-1 (Parts 18 & 15), R&TTE

Materials ABS, locking bolt and mounting bracket 304

stainless steel

Weight switch/actuator Switch 400 g, actuator 22 g,

actuator mounting bracket 60 g

Connection Flying lead or pigtail with M12 8-pin QD

connector (stainless steel)

Protection

Certifications

Short-circuit protection Incorporated

Current limitation Incorporated

Overload protection Incorporated

Reverse polarity protection Incorporated

Overvoltage protection Incorporated (up to 60V max.)

Thermal shutdown/restart Incorporated

See the Product Certification link at http://

www.rockwellautomation.com/rockwellautomation/certification/ for

Declaration of Conformity, Certificates, and other certification details.

• UL Listed Industrial Control Equipment, Certified for US and Canada

• CE Marked for all applicable directives

• C-Tick Marked

• TÜV Certified for Functional Safety up to SIL 3 Category 4 for use in

safety applications up to and including SIL 3, in accordance with IEC
61508 and EN 62061, Performance Level “e” and Category 4 in
accordance with ISO 13849-1, both for guard positioning and for
lock monitoring according to EN/ISO 14119:2013.

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 31

Appendix A Specifications

25

(0.98)

50

(1.97)

22.5

(0.89)

45 (1.77)

8

(0.31)

10

(0.39)

22.9

(0.90)

140 (5.51)

10

(0.39)

9.5

(0.37)

9.525

(0.37) dia.

22.5

(0.88)

134.5 (5.29)

33

(1.29)

2 x 5.5

(0.22) dia.

Compliance to European
Union Directives

Overall Dimensions

This product bears the CE Mark and is approved for installations within
the European Union and EEA regions. It has been designed and tested to
meet the following directives (Machine Safety and EMC).

For a complete list of standards used (including Machine Safety Directive
and EMC Directive), see EU Declaration of Conformity on page 37

of this

manual.

Switch Body

Actuator and Actuator Mounting Bracket

(1.57)

65

(2.56)

25.4
(1.0)

7

(0.28)

25 (0.98)

6 x 6.35

(0.25) dia.

12.5
(0.5)

40

47

(1.85)

51.5 (2.03)

40 (1.57)

3

(0.12)

32 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Switch Mounting Bracket 440G-LZAM2

40 (1.57)

Specifications Appendix A

+1

R6

-3

2x 6.35
(2x 0.25)

100 (3.93)

22.75 (0.89)

18.5
(0.73)

2x 15.5 (2x 0.61)

145.5
(5.72)

3x 5.5
(3x 0.22)

3 x 5.5
(3x 0.22)

2x 15
(2x 0.59)

54
(2.12)

2x 33
(2x 1.3)

2x 31.5
(2x 1.24)

6.35
(0.25)

4x R6
± 1 mm

6x M5
x 0.8-6H

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 33

Appendix A Specifications

Cat. Nos.

Complete switches, including switch body, actuator and actuator
mounting bracket

Cat. No.

Connection

6 in. pigtail with
M12 8-pin Quick

Type Actuator Coding

Standard

3 m lead 10 m lead

440G-LZS21SPRA 440G-LZS21SPRB 440G-LZS21SPRH

Disconnect

(Low level to EN/
ISO 14119:2013)

Unique

440G-LZS21UPRA 440G-LZS21UPRB 440G-LZS21UPRH

(High level to EN/

Power-t o-

ISO 14119:2013)

Release

Standard

440G-LZS21SPLA 440G-LZS21SPLB 440G-LZS21SPLH

(Low level to EN/
ISO 14119-2013)

Unique

440G-LZS21UPLA 440G-LZS21UPLB 440G-LZS21UPLH

(High level to EN/

Power-to -Lock

ISO 14119:2013)

Spare actuators and actuator mounting bracket

Type Coding Cat. No.

Standard

440G-LZASPR

(Low level EN/ISO 14119:2013)

Power-to -Relea se

Unique

(High level EN/ISO 14119:2013)

Standard

440G-LZAUPR

440G-LZASPL

(Low level EN/ISO 14119:2013)

Unique

440G-LZAUPL

(High level EN/ISO 14119:2013)

Power-to -Lock

Actuator mounting bracket 440G-LZAM1

Accessories

Description Cat. No.

Switch body mounting bracket 440G-LZAM2

34 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Typical Installations

Mounting
bracket

440G-LZAM2

X

Z

Y

Y

X

Actuator
Hole
14mm

Locking bolt

9mm

Appendix B

Switch Mounted Parallel to
Hinge Axis

The X and Y positions can be
adjusted using the slotted holes of
the mounting bracket and
appropriate selection of the three
pairs of actuator bracket holes,
once the bracket is centered.

The tolerance to misalignment is
±2.5 mm.

The Z (height) position is adjusted
by sliding the actuator bracket up/
down on the profile. If the setting
gap is centered between the
minimum of 0 mm and the
maximum of 5 mm, a tolerance to
misalignment of ±2.5 mm is
achieved.

The Z position should be carefully selected to offset the anticipated door
sag or door drop. At the same time, ensure that the alignment is such that
it is not possible to lift the door up and off the locking bolt. Also make
sure that there is no possibility that the actuator would collide with the
switch when the guard door is being closed. It is essential to check the
alignment periodically throughout the use of the guard locking switch.

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 35

Appendix B Typical Installations

2 mm
(at min. radius)

Minimum radius when
guard hinge axis is
perpendicular to the
switch body axis

Min R 300 mm

Mounting
bracket

440G-LZAM2

X

Z

Y

Switch Mounted
Perpendicularly to
Hinge Axis

The Z (height) position is adjusted
by sliding the actuator bracket up/
down on the profile. If the setting
gap is centered between the
minimum of 0 mm and the
maximum of 5 mm, a tolerance to
misalignment of ±2.5 mm is
achieved.

The X and Y positions can be
adjusted using spacers
underneath the switch and
appropriate selection of the three
pairs of actuator bracket holes,
once the bracket is centered.

The tolerance to misalignment is
±2.5 mm.

The Z position should be carefully
selected to offset the anticipated
door sag or door drop. At the same
time, ensure that the alignment is
such that it prevents lifting the
door up and off the locking bolt.
Also check to ensure there is no
possibility that the actuator would
collide with the switch when
closing the guard door. It is
essential to check the alignment
periodically throughout the use of
the guard locking switch.

Z

Y

X

Switch Mounted to a Sliding
Guard Door

36 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

The Z (height) position is adjusted
by sliding the actuator bracket up/
down on the profile. If the setting
gap is centered between the
minimum of 0 mm and the
maximum of 5 mm, a tolerance to
misalignment of ±2.5 mm is
achieved.

The X and Y positions can be
adjusted using the slotted holes of
the mounting bracket and
appropriate selection of the three
pairs of actuator bracket holes,
once the bracket is centered.

The tolerance to misalignment is
+/- 2.5 mm.

Typical Installations Appendix B

EU Declaration of Conformity

Identification of the product:

Guard Locking Safety Switch

Name and address of the manufacturer:

Rockwell Automation, Inc.
2 Executive Drive
Chelmsford, MA 01824
USA

Name and address of the authorised representative:

Rockwell Automation B.V.
Rivium Promenade 160
2909 LM Capelle aan den Ijssel
The Netherlands

This declaration of conformity is issued under the sole responsibility of the manufacturer.

Object of the declaration:

Allen Bradley / Guardmaster 440G-LZ21 Series

(reference the attached list of catalogue numbers)

The object of the declaration described above is in conformity with the relevant EU harmonisation legislation:
2004/108/EC

EMC Directive

(EMC)

2006/42/EC

Machinery Directive

(MD)

References to the relevant harmonised standards used or references to the specifications in relation to which
conformity is declared:

EN 60947-1:2007

Low-voltage switchgear and controlgear – Part 1: General rules

EN 60947-5-3:1999 + A1:2005

Low- voltage switchgear and controlgear – Part 5-3: Control circuit devices
and switching elements – Requirements for proximity devices with defined
behaviour under fault conditions (PDF)

EN 60204-1:2006 + A1:2009

Safety of Machinery – Electrical equipment of machines – General
requirements

IEC 61508: Part 1-7:2010

Functional Safety of electrical /programmable electronic safety related
systems

EN ISO 13849-1:2008

Safety related parts of control systems – Part 1: General principles of design

EN 62061:2005

Safety of Machinery – Functional safety of safety related electrical, electronic
and programmable electronic control systems

EN ISO 14119:2013

Safety of Machinery – Interlocking devices associated with guards –
Principles for design and selection

Notified Body:

TUV Rheinland IndustrieService GmbH
51105 Koln Germany

performed:

EU Type Examination

and issued the certificate:

968/EZ 616.00/13

Additional information:

Person authorised to compile the
technical file (MD):

Authorised representative (see details above).

Product Safety Function (MD):

Interlocking devices suitable for use in safety related applications up to PLe
(EN ISO 13849-1) and SIL/SIL CL (EN 61508/EN 62061)

Signed for and on behalf of the above named manufacturer:

Place and date of issue:

Milwaukee, WI USA

11-Nov-2013

Name, function:

Daniel L. Nachtigall, Technical Leader – Product Certification Engineering

Signature:

Rockwell Automation Publication 440G-UM001A-EN-P — November 2013 37

Appendix B Typical Installations

Catalogue number

Series 1

Description

Directive 2

EMC

MD

440G-LZ21****

Guard locking RFID non-contact safety switches

Yes

Yes

Accessories

889D-F8AB-*

Cordset for use with sensors with Micro (M12) connector

N/R

N/R

889D-F8ABDM-*

Patchcord for use with sensors with Micro (M12) connector

N/R

N/R

1) If no series number is given, then all series are covered

2) Yes = Product is certified to this directive.
N/R = This directive is not required for this product

NOMENCLATURE:

440G-LZS21

U P R

H

1 2 3 4 5

1

Designates Product Type
440G-LZS21 – Guard locking RFID non-contact safety switch w/2 safety outputs and 1 auxiliary output

2

Designates Actuator Coding Type
U – Unique
S – Standard code

3

Designates Sensor Type
P – Plastic Switch

4

Designates Lock Mode
R – Power to release
L – Power to lock

5

Designates Connection Type
H – 8 pin micro (M12) connector pigtail
A – 3 meter cable
B – 10 meter cable

38 Rockwell Automation Publication 440G-UM001A-EN-P — November 2013

Power, Control and Information Solutions Headquarters

Americas: Rockwell Automation, 1201 South Second Street, Milwaukee, WI 53204-2496 USA, Tel : [phone], Fa x: (1) 414.382.4444
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www.rockwel lautomation.com

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Rockwell Automation provides technical information on the web to assist you in using its products.
At http://www.rockwellautomation.com/support
notes, sample code and links to software service packs, and a MySupport feature that you can customize to
make the best use of these tools. You can also visit our Knowledgebase at

http://www.rockwellautomation.com/knowledgebase

forums, software updates, and to sign up for product notification updates.

, you can find technical manuals, technical and application

for FAQs, technical information, support chat and

For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer

SM

Tec hCon ne ct
Rockwell Automation representative, or visit http://www.rockwellautomation.com/support/

support programs. For more information, contact your local Allen-Bradley distributor or

.

Installation Assistance

If you experience a problem within the first 24 hours of installation, review the information that is contained in
this manual. You can contact Customer Support for initial help in getting your product up and running.

United States or Canada 1.440.646.3434

Outside United States or
Canada

Use the Worldwide Locator at http://www.rockwellautomation.com/support/americas/

phone_en.html, or contact your local Rockwell Automation representative.

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Rockwell Automation tests all of its products to ensure they are fully operational when shipped from the
manufacturing facility. However, if your product is not functioning and needs to be returned, follow these
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United States Contact your distributor. You must provide a Customer Support case number (call the phone number above to

obtain one) to your distributor to complete the return process.

Outside United States Please contact your local Rockwell Automation representative for the return procedure.

Rockwell Automation, Allen-Bradley, and POINT I/O are trademarks of Rockwell Automation, Inc. Guardmaster is a registered trademark of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are the property of their respective companies.

Publication 440G-UM001A-EN-P– November 2013 Copyright © 2013 Rockwell Automation, Inc. All rights reserved.