Allen-Bradley 440G-LZS21SJRJ, 440G-LZS21SPLA, 440G-LZS21SJLJ, 440G-LZ, 440G-LZS21SPLB Installation Instructions Manual
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Installation Instructions
Locking b olt
Actu ator
Switch body
Actuator mounting
bracket
QR Code
Alignment
guide
Original Instructions
440G-LZ Guard Locking Safety Switch
Catalog Numbers
440G-LZS21SJLJ, 440G-LZS21SJRJ, 440G-LZS21SPLA, 440G-LZS21SPLB, 440G-LZS21SPLH, 440G-LZS21SPRA, 440G-LZS21SPRB,
440G-LZS21SPRH, 440G-LZS21STLA, 440G-LZS21STLB, 440G-LZS21STLH, 440G-LZS21STRA, 440G-LZS21STRB, 440G-LZS21STRH, 440G-LZS21UJLJ,
440G-LZS21UJRJ, 440G-LZS21UPLA, 440G-LZS21UPLB, 440G-LZS21UPLH, 440G-LZS21UPRA, 440G-LZS21UPRB, 440G-LZS21UPRH, 440G-LZS21UTLA,
440G-LZS21UTLB, 440G-LZS21UTLH, 440G-LZS21UTRA, 440G-LZS21UTRB, 440G-LZS21UTRH
Additional Resources
ATT EN TI ON : Read this document and the documents that are 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,
and 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.
Topi c Page
Summary of Changes 1
Additional Resources 1
Introduction 1
Mounting 2
Installation Considerations 2
Auxiliary/Manual Release 3
Connections 4
The QR code on the switch provides a link to publication
440G-UM001A-EN-P.
Resource Description
440G-LZ Guard Locking Switch User Manual,
publication 440G-UM001A-EN-P
Industrial Automation Wiring and Grounding
Guidelines, publication 1770-4.1
Product Certifications website, http://
www.rockwellautomation.com/products/
certification
You can view or download publications at http://
www.rockwellautomation.com/literature/. To order paper copies of
technical documentation, contact your local Allen-Bradley distributor
or Rockwell Automation sales representative.
Provides general guidelines for installing a
Rockwell Automation guard locking switch.
Provides general guidelines for installing a
Rockwell Automation industrial system.
Provides declarations of conformity,
certificates, and other certification details.
Introduction
ATT EN TI ON : Do not attempt to install this device unless the
installation instructions have b een studied and u nderstood. This
document acts as a guide for a typical installation and is available in
some languages at
Select the publication language and type 440G-LZ in the search
field. A user manual is also available, publication
440G-UM001A-EN-P
www.rockwellautomation.com/literature.
.
Summary of Changes
Added required minimum distance between switches and detail for 5pin quick-disconnect models.
Figure 1 - Assembly Overview
440G-LZ Guard Locking Safety Switch
For proper installation, a
minimum of two fasteners
must be used, at least one of
which must be fitted to the top
row of holes, closest to the
bend in the actuator mounting
bracket.
2 x M5/M6 CSK
3 x M5
The locking bolt must always enter
the actuator mounting bracket first.
200 mm (7.87 in.) minimum
Align the white triangles
0.4 N•m
2 x T10
Torx screws
This 440G-LZ Guard Locking switch is for use on guards that are
engineered to be rigid without sag. A separately mounted latch (for
example, magnetic, mechanical) and mechanical stop is required.
Installation must be in accordance with these instructions and must be
carried out by qualified personnel.
ATT EN TI ON : After installation, ensu re that there is no p ossibility
of lifting the ac tuator over the extended locki ng bolt. Adherence to
the recommended maintenance instructions forms part of the
warr anty.
This device is intended to be part of the safety-related control system of
a machine. Before installation, a risk assessment must be performed to
determine whether the specifications of this de vice are suitable for all
foresee able ope rational and environmental characteristi cs of the
application. See Specifications on page 5
and ratings.
Use appropriate screws, bolts, or nuts that are fitted by tools to mount
the switch and actuators to avoid the risk of tampering. Do not over
torque the mounting hardware.
for certification information
Mounting
Figure 2 - Switch Body and Actuator
Installation Considerations
Figure 4 - Orientation of Assembled S
Minimum Distance Between Switches
If a pair of 440G-LZ switches is mounted close to each other, the two
inductive fields interact causing crosstalk, which results in nuisance
faults and false operation.
An absolute minimum of 200 mm (8 in.) must be used to help achieve
correct operation.
The restriction applies if a 440G-LZ switch is mounted close to the
TLS-Z guard locking and the 440N-Z SensaGuard™ switches.
Figure 5 - Minimum Distance between Switches
witch
ATT EN TI ON : For the switch, actuator and actuator mounting
bracket:
• Only use the designated mounting holes.
• Never drill or use to support other structures such as conduit,
cable wa ys, or other hardware.
Figure 3 - Actuator Mounting Possibilities
2 Rockwell Automation Publication 440G-IN011B-EN-P - October 2018
Figure 6 -
Four Directions of Approach
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