Specialist Personnel; Product Description - Allen-Bradley GuardShield 440L-T2KA series Installation Instructions Manual

The GuardShield™ Type 2 may be used in safety applications in which a
risk analysis according to ANSI Z590.3, Z690.3, ISO 14121 and
ISO 12100 have reached PLC in a safety Category 2
(EN ISO 13849-1) or SIL1 (EN 62061).
ATTENTION: The GuardShield™ Type 2 must not be used with
machines that cannot be stopped electrically in an emergency.
The safety distance between the GuardShield™ Type 2 and a
dangerous machine movement has to be maintained always.
Additional mechanical protective devices have to be installed in a
way that hazardous machine elements cannot be reached without
passing through the protective field.
The GuardShield™ Type 2 has to be installed in a way that operators
can only operate within the sensing area. Improper installation can
result in serious injury.
Never connect the outputs to +24V DC. If the outputs are connected
to +24V DC, they are in ON-state and cannot stop hazardous spots at
the machine/application.
Never expose the GuardShield™ Type 2 to flammable or explosive
gases.
Regular safety inspections are imperative (see maintenance).
Do not repair or modify the GuardShield™ Type 2. The GuardShield™
Type 2 safety light curtain is not field repairable and can only be
repaired at the factory. Removal of either of the GuardShield™ Type 2
endcaps voids the warranty terms of this product.

Specialist Personnel

A qualified person is required to install, commission, and service the
GuardShield™ Type 2 safety light curtain. A qualified person is defined
as a person who:
• Has undergone the appropriate technical training
and
• Instructed by the responsible machine operator in the operation of
the machine and the currently valid safety guidelines
and
• Has read and has ongoing access to these installation instructions.
Range of Uses of the Device
The GuardShield™ Type 2 safety light curtain is classified as electro-
sensitive protective equipment (ESPE). The physical resolution is
30 mm (1.18 in.). The maximum protective field width is 16 m
(52.5 ft). The protective field height is between 160 mm (6.3 in.) and
1760 mm (69.2 in.).
The device is a Type 2 ESPE as defined by IEC 61496-1 and
IEC 61496-2. Therefore it is allowed for use with controls:
• In safety Cat 2 up to PLc in accordance with EN ISO 13849-1
• SIL CL1 in accordance with EN 62061
The device is suitable for:
• Point of operation protection (finger and hand protection)
• 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 the "Examples of Range of
Use" on page 4 for an illustration of the protection modes.
Mechanical protection devices could be required and the safety light
curtains for some applications.
Proper Use
The GuardShield™ Type 2 safety light curtain must be used only as
defined in the "Range of Uses of the Device." Only qualified personnel
can install and initialize the safety light curtain.
If the device is used for any other purposes or modified in any way,
warranty claims against Allen-Bradley/Guardmaster become null and
void.
General Protective Notes and Protective Measures
• The notices, in particular the test regulations of these installation
• The tests are conducted specialist personnel or specially qualified
• The installation instructions must be made available to the user of

Product Description

This section provides information on the special features and
properties of the safety light curtain. It describes the structure and
functions of the unit, in particular the different operating modes.
→ Read this section before mounting, installing, and
GuardShield™ Type 2 Light Curtain Principle of Operation
The GuardShield™ Type 2 safety light curtain consists of a non-
matched pair of optic units, that is, transmitter and receiver with the
same protective height and resolution. The transmitter and receiver
operate on +24V DC. The maximum distance between transmitter
and receiver is referred to as the protective field width or range. The
protective field height is the distance between the first and last beam in
the device.
Rockwell Automation Publication 440L-IN011B-EN-P - October 2017
ATTENTION: Safety Notes
Observe the following items to help ensure compliance of the proper
and safe use of the GuardShield™ Type 2 safety light curtain
• The national/international rules and regulations apply to the
installation, use, and periodic technical inspections of the
safety light curtain, in particular:
• Machine Directive 2006/42/EC
• Low Voltage Directive 2006/95/EC
• The work safety regulations/safety rules
• Other relevant health and safety regulations
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.
instructions (for example, on use, mounting, installation, or
integration into the existing machine controller) must be observed.
and authorized personnel. The results are recorded and
documented to help ensure that the tests can be reconstructed and
retraced at any time.
the machine where the GuardShield™ Type 2 safety light curtain is
installed. The machine operator is instructed in the use of the
device by specialist personnel and must be instructed to read the
installation instructions.
commissioning the unit.
GuardShield Type 2 Safety Light Curtain
3