Rockwell Automation Publication 440G-UM001C-EN-P - June 2019 5
Preface
Summary of Changes
This manual contains new and updated information as indicated in the
following table.
Who Should Use This Manual
Use this manual to design, install, program, or troubleshoot systems that use
the Guardmaster 440G-LZ guard lock safety switches.
You are required to have a basic understanding of electrical circuitry and
familiarity with safety-related control systems. If you do not, obtain the proper
training before using this product.
Purpose of This Manual
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 switch, and
• Provides an overview of the Guardmaster 440G-LZ guard locking
switch.
Conventions Used in This
Manual
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:
Topic Page
Added information about 440G-LZ being a Type 4 interlocking device with low and
high coding, according to EN ISO 14119
7 and 54
Separated Installation & Wiring chapters 13 and 21
Added a note warning against the use of washers when mounting the switch body 16
Added information about mounting for Protection from particle build-up under
Environmental Considerations
18
Revised the Commissioning section for easier understanding 27
Created Diagnostics and Troubleshooting Chapter 31
Created Application Examples Chapter in order to add application examples for DG
Relay, CR30 and GSR GLT Relay
37
Added Mechanical Lifetime under Specifications 53
Resource Description
Allen-Bradley Industrial Automation Glossary,
publication AG-7.1
Glossary of industrial automation terms and
abbreviations
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