Rockwell Automation Allen-Bradley GuardShield 450L-B4FNxYD User manual

GuardShield Safety Light Curtain
Catalog Numbers 450L-B4FNxYD, 450L-B4HNxYD, 450L-E4FLxYD, 450L-E4HLxYD
User Manual
Original Instructions

Important User Information
Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.
If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.
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.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Labels may also be on or inside the equipment to provide specific precautions.
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.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
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.
ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 3
Table of Contents
Preface
Who Would Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Summary of Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Additional Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Chapter 1
Product Overview General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Firmware Revisions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 2
Safety Concepts Safety Standards Applied to GuardShield. . . . . . . . . . . . . . . . . . . . . . . . 17
Functional Safety Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Safety Certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installation Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Possible Misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Chapter 3
Operation Principle of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Laser Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Chapter 4
Safety Function Start Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Automatic (Re) Start (Default) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Manual (Re) Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Manual Cold Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Manual (Re) Start with Off Function . . . . . . . . . . . . . . . . . . . . . . . 28
Power Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
External Device Monitoring (EDM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Low Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Beam Coding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Blanking and Reduced Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Teach-in Fixed Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Teach-in Blanking Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Reduced Resolution (Object Number Limited) . . . . . . . . . . . . . . . . . . 35
Resolution with Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Table of Contents
Muting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Muting Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Muting Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Mute Dependent Override Function (MDO). . . . . . . . . . . . . . . . 40
Two-sensor T-type Muting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Two-sensor L-type Muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Two-sensor L-type Muting with Enable . . . . . . . . . . . . . . . . . . . . . 44
Four-sensor Muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Cascading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Cascading and Blanking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Response Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Standard Response Time, Ts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Advanced Feature Response Time, Ta. . . . . . . . . . . . . . . . . . . . . . . 54
Cascading Response Time, Tc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Connected Components Workbench Response Time . . . . . . . . 57
Product Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Chapter 5
System Configuration Receiver Plug-in DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
450L-APR-ON-5 Connection Plug-in . . . . . . . . . . . . . . . . . . . . . . . . . . 61
450L-APR-ED-8 Connection Plug-in. . . . . . . . . . . . . . . . . . . . . . . . . . . 61
450L-APR-BL-5 Connection Plug-in . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
450L-APR-MU-8 Connection Plug-in. . . . . . . . . . . . . . . . . . . . . . . . . . 62
450L-APR-UN-8 Connection Plug-in . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Confirmation of a New System Configuration. . . . . . . . . . . . . . . . . . . 64
Confirmation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Confirmation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Chapter 6
Installation and Wiring Determine the Safety Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
U.S. Safety Distance Formula. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
OSHA Safety Distance Formula . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
ANSI Safety Distance Formula . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
European Safety Distance Formula. . . . . . . . . . . . . . . . . . . . . . . . . . 71
Minimum Distance from Reflective Surfaces. . . . . . . . . . . . . . . . . 73
Mirrors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Install and Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Correct Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Incorrect Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Mount Multiple 450L GuardShield Safety Light Curtains . . . . 79
Mounting Brackets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Standard Top/Bottom Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . 82
Side Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Shock Mounting Kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Replacement Mounting Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 5
Table of Contents
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Plug-ins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Plug-in Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Transmitter Plug-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Receiver Plug-in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Cascading. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Transmitter Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Receiver Cable Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Cascading Cable Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
External Device Monitoring (EDM) Connection . . . . . . . . . . . . 99
Restart Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
OSSD Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
OSSD Signal Processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
OSSD Restart Time (from OFF to ON). . . . . . . . . . . . . . . . . . . . 101
Test Pulses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Typical Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Direct to Contactors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Guardmaster SI Safety Relay. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
T-connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
GuardLink Tap Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
1732 ArmorBlock Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Two-sensor Muting with Muting Plug-in. . . . . . . . . . . . . . . . . . . 109
Four-sensor Muting with Muting Plug-in. . . . . . . . . . . . . . . . . . . 110
Chapter 7
Status Indicators and
Troubleshooting
Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
System Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Status Indicator for Normal Operation. . . . . . . . . . . . . . . . . . . . . 115
Optical Push Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Status Indicator Error Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Optical Interface Device (OID) . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Troubleshoot with Connected Component
Workbench Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Chapter 8
Safety Instructions Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Regular Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Clean Optic Front Window. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Product Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Stick Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Plug-in Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

6Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Table of Contents
Chapter 9
Connected Components
Workbench Software
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Multiple Subconfigurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Start a New Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Workbench Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Project Organizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
USB Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Sub-configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
General Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
GPIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Diagnose Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Export. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Lock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Teach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Beam Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Two-sensor Muting Schematic Example. . . . . . . . . . . . . . . . . . . . . . . . 148
Muting Type and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
GPIO Selection and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Four-sensor Muting Schematic Example . . . . . . . . . . . . . . . . . . . . . . . 152
Hardware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Muting Type and Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
GPIO Selection and Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Blanking Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Lens Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Fixed Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Fixed Blanking Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Teach Blanking Zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Process Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Floating Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Floating Blanking Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Object Height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Reduced Resolution Blanking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Reduced Resolution Blanking Rules. . . . . . . . . . . . . . . . . . . . . . . . 174
Object Height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Download and Upload Configurations . . . . . . . . . . . . . . . . . . . . . . . . 175
Change Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 7
Table of Contents
Share Your Project (Export/Import). . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Export Project to a Connected Components
Workbench Software Archive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Import Project from a Connected Components
Workbench Software Archive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Export Device to Zip File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Import a Zip File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Update Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Appendix A
Specifications Safety Ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Operating Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Inputs Receiver Plug-in, Cascading Plug-in, and
Universal Plug-in. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Safety Outputs (OSSDs): Receiver Plug-in . . . . . . . . . . . . . . . . . . . . . 191
Status Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Environmental and General Protection . . . . . . . . . . . . . . . . . . . . . . . . 191
Electrical Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
Certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Compliance to European Union Directives . . . . . . . . . . . . . . . . . 193
Approximate Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Product Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Sticks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Plug-ins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Corner Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Mounting Columns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Alignment Tool and Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Weld Shields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Appendix B
Typical Installations Safety Light Curtain Mounted Vertically. . . . . . . . . . . . . . . . . . . . . . . 205
Safety Light Curtain Mounted Horizontally. . . . . . . . . . . . . . . . . . . . 205
Fixed Blanking Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Cascading Application. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209

8Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Table of Contents
Notes:

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 9
Preface
This manual is a reference guide for the 450L-B and 450L-E GuardShield™ Safety
Light Curtains. It describes the procedures to install, wire, and troubleshoot the
safety light curtains.
Who Would Use This Manual Use this manual if you design, install, program, or troubleshoot systems that use
the 450L GuardShield safety light curtain.
You must 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.
Qualified personnel must conduct all inspections. A qualified person must
perform these tasks:
• Undergone the appropriate technical training
• The responsible machine operator has instructed personnel in the
operation of the machine and the current safety guidelines.
• Has read and has access to the user manual.
Qualified personnel must install the light curtain and only use it on that specific
machine.
Summary of Changes Topic Page
Updated Terminology table. 10
Updated Table 3.15
Updated Figure 10.25
Updated Low Operating Range section 29
Changed Mute Fault Override Function (MFO) to Mute Dependent Override Function (MDO). 40
Updated Two-sensor T-type Muting section. 41
Added Two-sensor L-type Muting with Enable section. 44
Updated Cascading section. 48
Updated Response Time section. 52
Made System Configuration its own chapter. 59
Updated Table 23.62
Added Plug-in Installation section. 89
Updated Transmitter Plug-in section. 90
Updated Receiver Plug-in section. 91
Updated Power Supply section. 98
Added Grounding section. 98
Updated footnote under Figure 65.101
Updated figures and text throughout the Typical Wiring Diagram section. 102…110
Added GuardLink Tap Connections section. 105
Added marking symbols to Table 52.115
Updated Table 71.189
Updated Corner Mirror catalog numbers. 198

10 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Preface
Terminology
Additional Resources These documents contain additional information concerning related products
from Rockwell Automation.
You can view or download publications at rok.auto/literature.
Abbreviation Definition
DoC Declaration of Conformity
EDM External Device Monitoring
ESPE Electro-sensitive protective equipment
FSD Final switching device
NC Not connected
NEC National Electric Code (U.S.)
OID Optical Interface Device
OSSD Output Signal Switching Device: Typically designates a pair of solid-state signals that are pulled up to
the DC source supply. The signals are tested for short circuits to the DC power supply, short circuits to
the DC common, and short circuits between the two signals.
PL Performance Level
POC Point of Operation Control
QD Quick disconnect
RB Restart button
Rx Receiver
SIL Safety integrity level
Tx Transmitter
Resource Description
GuardShield 450L Safety Light Curtain Package
Content, publication 450L-PC001 Provides installation information for 450L replacement units.
GuardShield 450L Side Mounting Kit,
publication 450L-IN002 Provides installation information for side mount brackets.
GuardShield 450L Weld Shield Kit,
publication 450L-IN001 Provides installation information for weld shield kits.
GuardShield 450L Optical Interface Device,
publication 450L-IN003 Provides installation information for optical interface device.
Safety Book 5, Safety-related Control Systems for
Machinery, publication SAFEBK-RM002
Provides principles, standards, and implementation of
safety-related control systems for machinery.
Industrial Automation Wiring and Grounding
Guidelines, publication 1770-4.1
Provides general guidelines for installing a
Rockwell Automation® industrial system.
Product Certifications website: rok.auto/certifications Provides declarations of conformity, certificates, and other
certification details.

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 11
Chapter 1
Product Overview
General Description The 450L GuardShield safety light curtain family consists of general-purpose
presence sensing devices that are designed for use on hazardous machinery for
Point of Operation Control (POC). The product family is certified as Type 4
electro-sensitive protective equipment (ESPE) (as defined by EN 61496-1 and
IEC 61496-2). This certification allows this product to be used in applications
that require PLe category 4 according to EN ISO 13849-1.
The 450L safety light curtains are offered in multiple lengths from
150…1950mm (5.9…76.77 in.) in increments of 150 mm (5.9 in.). Each length is
available in finger (14 mm [0.56 in.]) or hand (30 mm [1.19 in.]) resolution with
a basic set of sensing functions.
The 450L safety light curtain family consists of two product lines:
• 450L-B (Basic)
• 450L-E (Enhanced)
Whereas the 450L-B version is suitable for basic ON/OFF applications, the
450L-E version provides enhanced features for more sophisticated applications.
Table 1 provides an overview of the differences between the two product
versions:
Table 1 - Differences between 450L-B and 450L-E Safety Light Curtain Systems
The two 450L versions have no differences in cross section, protective heights
and resolutions, sealing, operating and storage temperature, and length passive
zones at the ends of each stick and mounting options.
Description 450L-B 450L-E
Alignment aid Two zone indicator light-emitting
diode (LED)
Integrated laser alignment and two zone indicator
LED
Operating range finger
resolution, max 4 m (13.12 ft) 9.0 m (29.53 ft)
Operating range hand
resolution, max 7.0 m (22.97 ft) 16.2 m (53.15 ft)
Functionality
Start modes
External device monitoring (EDM)
Operating range
Start modes
EDM
Operating range
Beam coding
Blanking
Muting
Cascading

12 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Chapter 1 Product Overview
What makes each GuardShield light curtain system unique from other safety
light curtain transmitter and receiver solutions is that it consists of two identical
transceiver sticks. These safety light curtains are not designated as transmitter or
receiver right out-of-the-box. The configuration of a stick as a transmitter or a
receiver is done by inserting either:
• A dedicated transmitter or receiver plug-in into the transceiver sticks
• A universal plug-in module in each transceiver stick, which allows a
selection for the transmitter or the receiver function by wiring.
The GuardShield safety light curtains are designed as a two box system, which
has no inactive sensing area or dead/blind zones at the top and bottom of each
stick. This design allows a perfect and easy integration in individual machine
designs.
Selectable function depends on the installed receiver plug-in, which can be
inserted in a GuardShield safety light curtain transceiver stick. Different
operation modes can be selected via the DIP switch on the receiver plug-ins.
Depending on the type of plug-in that is installed in a GuardShield stick, the
system offers:
• Connectivity to ArmorBlock® Guard I/O™ (5-pin M12 QD) for network
connectivity providing CIP Safety™ over DeviceNet™ or EtherNet/IP™.
•Auto or manual start modes
• External device monitoring (EDM)
•Beam coding
• Muting, blanking, and cascading capabilities (only for the 450L-E safety
light curtain)
Recognized technical regulations and ISO 9001 quality assurance procedures are
carefully applied during the development and production of Allen-Bradley®
GuardShield products.
LASER LIGHT CLASS 2 HAZARD: Do not stare into the beam. The 450L-E light
curtains are equipped with an integrated laser alignment help option (see Laser
Alignment on page 24).
IMPORTANT 450L-B transceiver stick cannot be operated with a 450L-E transceiver stick

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 13
Product Overview Chapter 1
Figure 1 - Compatibility Limitations
Figure 2 - Assembly Overview for the 450L-B Safety Light Curtain System
Figure 3 - Assembly Overview for the 450L-E Safety Light Curtain System
A 450L-E safety light curtain also provides the option to insert a cascading plug-
in into the opposite stick end at the gray slot cover (see Cascading on page 48 and
Figure 5 on page 14).
2 x 450L-B
1 x 450L-B
1 x 450L-E
2 x 450L-E
Standard
Mounting
Bracket
Transceive r
Sticks
Inserted Plug-ins
Connection
Plug-in
Inserted Connection
Plug-ins
Standard Mounting
Bracket
450L-E Transceiver
Sticks
Inserted Connection
Plug-ins
Cascading Plug-in
(Optional)
Connection Plug-in

14 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Chapter 1 Product Overview
Package Contents A GuardShield safety light curtain is normally shipped as an individual
component (single transceiver). A functional system includes four individual
boxes.
Table 2 - List for a Complete System
Figure 4 - Contents of 450L Transceiver Stick Box
Figure 5 - Plug-ins
Item Required Quantity Description Remark
12
450L GuardShield
transceiver stick
Each box contains:
•One stick
• Mounting kit (top and bottom)
•Test rod
• Short instruction manual
2 1 Transmitter plug-in 150 mm (5.9 in.) pigtail with M12 QD connector (male)
3 1 Receiver plug-in 150 mm (5.9 in.) pigtail with M12 QD connector (male)
Transceiver Stick
Standard Mounting Kit
Test Rod
Installation
Instruction
Transmitter Connection Plug-in,
No DIP Switches, 5-pin or 8-pin
M12 QD
Receiver and Universal Connection
Plug-in, with DIP Switches, 5-pin
or 8-pin M12 QD
Cascading Plug-in (Catalog Number
450L-APC-IO-8), No DIP Switches,
8-pin M12 QD

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 15
Product Overview Chapter 1
Firmware Revisions The feature list of the 450L-B and of the 450L-E light curtains continuously
expands. Table 3 lists the components that have firmware that can be upgraded
using ControlFLASH™ software.
Table 3 - Firmware Revisions of 450L Safety Light Curtains
For maintenance reasons, a 450L stick with an old FW version can be operated
with a 450L stick with newer FW.
Family Version Description
450L-B
1.001 Initial Release. Does not support Connected Components Workbench™ software.
2.001 Support Connected Components Workbench software diagnosis and connection with
T-connector. Can be used as the last pair of cascading.
3.001 Same feature as 2.001 but 4K security key.
4.001 Support Connected Components Workbench software diagnosis.
5.001 Same feature as 4.001.
450L-E
2.001
Initial release and supports Connected Components Workbench software diagnosis.
Supports Safety Override, Dry Contact Switch, and E-stop. Cascaded light curtains Tx
side cannot use universal plug-in, the host pairs can still use universal plug-in.
3.001 Same feature as 2.001.
4.001 Support Connected Components Workbench software diagnosis and configuration.
Not backward compatible with 450L-APC-IO-8.
5.001 Same feature as 4.001.
450L-APC-IO-8
1.001 Initial Release.
2.001 Allows 450L-APU-UN-8 to be used as a transmitter in a cascaded stick.
3.001 Same feature as 2.001.
4.001 Backward compatible with LC.
5.001 Same feature as 4.001.
450L-OID
1.001
Initial Release, does not support 450L-E. If you get a message, “The connection to the
450L safety light curtain will be terminated because of repeatedly mismatched
checksum calculation errors” then upgrade the FW to 1.002 or later.
1.002 Support LC Diagnosis and FW update.
3.001 Backward compatible with LC. It supports LC FW 3.001 diagnosis, FW update, reset,
confirm and blanking teach command. Added 4K key certificate support.
4.001 Backward compatible with LC. Example: 2.001, 3.001, 4.001 LC can work with 5.001
OID, but 3.001, 4.001 OID cannot work with 5.001 LC.
5.001 Backward compatible with LC.

16 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Chapter 1 Product Overview
Notes:

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 17
Chapter 2
Safety Concepts
This section describes the safety Performance Level concept and explains how the
450L safety light curtains meet the requirements for SIL 3 and PLe for
Category 4 architectures.
Safety Standards Applied
to GuardShield
The 450L safety light curtain satisfies applicable requirements in the following
standards that are related to functional and machinery assembly:
• IEC 61496-1/-2 (Type 4)
• IEC 61508 (SIL 3)
• IEC 62061 (SIL CL 3)
• EN/ISO 13849-1 (Performance Level e (PLe), Category 4)
• UL 508
The 450L-E safety light curtain satisfies applicable requirements that are
provided in IEC 60825-1 for the integrated laser alignment aid (see Laser
Alignment on page 24).
Published dates of the individual standards are given in the Declaration of
Conformity (see rok.auto/certifications).
Functional Safety Data The functional safety data are listed in Table 70 on page 189. These values refer
to the longest light curtain system length (1950 mm [76.77 in.]) with the
smallest resolution (14 mm[0.55 in.]).
For cascaded 450L-E safety light curtain applications, the final PFH value of the
complete system is the sum of the individual PFH values of each pair plus the sum
of the PFH values of the cascading plug-in.
The following example (Figure 6 on page 18) shows the calculation of the PFH
of a cascaded system with 450L-E safety light curtain and two cascading plug-ins.

18 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Chapter 2 Safety Concepts
Figure 6 - Example and PFH Calculation of Cascaded Systems
PFH (total) = 3x PFH (450L pair) + 2 x PFH (cascading plug-in)
Safety Certification Each 450L safety light curtain is a Type 4 ESPE as defined by IEC61496-1 and
CLC/TS 61496-2. The safety light curtains are allowed for use with controls in
compliance with these certifications.
• PLe (in a Category 4 architecture) in compliance with EN ISO 13849
• SIL CL3 in accordance with EN 62061
• SIL 3 in accordance with IEC 61508
Safety requirements are based on the standards applicable at the time of
certification with a proof test interval of 20 years.
The device is suitable for the following:
• Point of Operation Control (POC) finger- and hand-detection
• Hazardous area protection
• Access protection
Access to the hazardous point must be allowed only through the protective field.
The machine/system is not allowed to start as long as personnel are within the
hazardous area (see Correct Installation on page 77).
Depending on the application, mechanical protective devices are potentially
required in addition to the safety light curtain.
TÜV Rheinland has approved the 450L GuardShield safety light curtains for use
in safety-related applications where Performance Level (PL) up to e and safety
integrity level up to SIL 3 are required.
TÜV Rheinland confirmed that the integrated laser alignment aid in 450L-E
GuardShield safety light curtains conforms to the classification of laser class two
according to IEC 60825-1.
IMPORTANT For 450L-E safety light curtains, if cascading the PFH of each cascade and
each cascading plug-in must be considered.
Pair 1 Pair 2 Pair 3
Cascading
Plug-in 1
Cascading
Plug-in 2

Rockwell Automation Publication 450L-UM001D-EN-P - December 2019 19
Safety Concepts Chapter 2
The national/international rules and regulations apply to the installation, use,
and periodic technical inspections of the safety light curtain, in particular:
•Machine Directive
• Low Voltage Directive
• Equipment Usage Directive
• Work safety regulations/safety rules
• Other relevant health and safety regulations
Published dates of the individual standards are given in the Declaration of
Conformity (see Compliance to European Union Directives on page 193).
Manufacturers and users of the machine with which the safety light curtain is
used are responsible for obtaining and observing all applicable safety regulations
and rules:
• The notices, in particular the test regulations of this user manual (for
example, on use, mounting, installation, or integration into the existing
machine controller) must be observed.
• Specialist personnel or specially qualified and authorized personnel
implement the tests and must record and document that the tests can be
reconstructed and retraced at any time.
• This user manual must be made available to the user of the machine where
the GuardShield safety light curtain is installed. The machine operator is
instructed in the use of the device by specialist personnel.
Installation Requirements The GuardShield safety light curtains must be installed in accordance with
applicable regulations and standards.
While the GuardShield safety light curtains can be used for SIL 3, PLe, and
Category 4 applications, the installer must comply with the minimum (safe)
distance requirements. For example, according to EN ISO 13855, if installed in
the European Union.
The installed system, including the safety control system and the means by which
the machine stops, must achieve the needed safety Performance Level. The
GuardShield safety light curtains are only one element in the safety system.
Additional guidance can be found in publication SAFEBK-RM002).
IMPORTANT Observe the following directives, rules, and regulations to help conform to
proper and safe use of the GuardShield safety light curtain.

20 Rockwell Automation Publication 450L-UM001D-EN-P - December 2019
Chapter 2 Safety Concepts
Possible Misuse GuardShield safety light curtains are used as electro-sensitive protective
equipment in the sense of the Machinery Directive. These devices are only used
in applications such as:
•POC device
• Access control device
• Hazardous area control device
• Machines, which eject materials, swarf, or component parts
• Risk of injury from thermal or other radiation
• Unacceptable noise levels
• Transparent objects are detected
• An environment, which exceeds the specification, limits provided in
Specifications on page 189.
Some but not all possible limits are electrostatic discharge, radio frequency
interference, vibration/shock, ambient light, pollution, temperature, humidity.
Without additional measures (IEC 62998), GuardShield safety light curtains are
not designed to be used for the following applications:
•Outdoors
•Under water
•Explosive atmospheres
• Altitudes over 3000 m (1.86 miles) above sea level
• With enhanced ionizing or radar radiation.
WARNING: The following applications and/or environmental conditions can
lead to misuse and potentially cause severe injuries or death (for more
information see IEC 62046).