Specifications

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Publication S117-CA001A-EN-P
Presence Sensing Safety Devices
Safety Light Curtains
2-9
Overview
GeneralPrinciples
2-Opto-electronics
Safety SwitchesOperator
Interface
LogicPower
R
GuardShield Safe 4
GuardShield Micro 400
GuardShield
Safe 4
GuardShield Micro 400
Micro 400 Cascading
GuardShield Safe 2
Micro 400 Cascaded
The standard GuardShield safety light curtain has DIP-switches
located in both the transmitter and receiver endcaps. The DIP-
switches are accessible through a hinged door that is secured to the
endcap with a security screw.
The transmitter DIP-switches provide for the configuration and
activation of Beam Coding and Machine Test Signal.
The receiver DIP-switches provide for configuration of all of the
GuardShield safety light curtain's modes of operation.
The GuardShield Safe 4 is a Type 4 safety light curtain offered in
POC and PAC versions with basic ON/OFF functionality. The Safe 4
POC is offered in both 14 mm and 30 mm resolutions in protective
heights ranging from 120 mm up to 1920 mm in increments of 120
mm.
The GuardShield Safe 4 PAC (Perimeter Access) is offered with two
120 mm modules providing 500 mm spacing and with three 120 mm
modules providing 400 mm spacing. Both the two- and three-beam
Safe 4 PAC versions have an operating range from 5 meters up to
30 meters.
The GuardShield Safe 4 POC and Safe 4 PAC are economical Type
4 safety light curtains with ON/OFF functionality and an integrated
laser alignment system. The integrated laser alignment system
consists of a constantly powered Class 2 visible laser located on the
top of the transmitter and on the bottom of the receiver. The
constantly powered integrated laser alignment systems allows a low
level of laser light to be emitted. Simply touching a finger to the
laser beneath the finger symbol reflects the low level of laser light
back to a photo sensor which causes the laser light intensity to
increase for five minutes or until a finger covers the laser reflecting
the laser back to the photo sensor which signals a reduction of the
intensity of the emitted laser light. This system assures that both the
top and bottom of the Safe 4 pair are quickly and easily aligned or
realigned if a light curtain or corner mirror is inadvertently moved
during operation.
The GuardShield Safe 2 is a Type 2, SIL 2, PLd, safety light curtain
offered with a 30 mm resolution in protected heights ranging from
120 to 1920 mm in 120 mm increments. The GuardShield Safe 2 is
an economical, two-box safety light curtain with ON/OFF
functionality and an integrated laser alignment system. The
integrated laser alignment system consists of a Class 2 visible laser
located at the top of the transmitter and the bottom of the receiver.
Each laser has a target located opposite the laser on the transmitter
and receiver. This integrated laser alignment system facilitates
alignment at installation and during the course of usage if the Safe 2
pair is knocked out of alignment.
The GuardShield Micro 400 is an economical three-box (transmitter,
receiver and controller) Type 4 safety light curtain offered in a small
profile (15 mm X 20 mm) housing. Designed for use in benign
industrial environments (IP54), this medium/light duty safety light
curtain system is targeted to the semi-conductor, microelectronic
and small assembly machine markets.
The compact housing size allows the GuardShield Micro 400 to be
mounted in areas where standard safety light curtains may not be
able to be mounted due to space constraints.
The GuardShield Micro 400 requires a dedicated controller, either an
MSR42 or MSR41. The MSR41 is a basic controller for simple
ON/OFF functionality and the MSR42, in addition to providing
operating functionality for the Micro 400, can be used as a multi-
function safety module. This multi-functional safety module allows
the connection of additional safety light curtains, safety laser
scanner or a safety device with PNP type outputs as well as E-stops
or override switches. The MSR42 can have limited functionality
activated by wiring but requires configuration software for any
advanced functionality.
The Micro 400 transmitter and receiver are offered with eight-pin
M12 connectors at the end of 500 mm (19.8 in.) integrated cables.
The patchcords to connect the transmitter and receiver to the
controller are the same cat. no. and are offered in various lengths.
These patchcords are configured on one end with M12 connectors
that mate to the integrated pigtail connectors and RJ45 connectors
on the opposite end, that plug into the MSR41 or MSR42 controller.
The Micro 400 is also offered in cascadable configurations.
GuardShield Cascadable Micro 400 safety light curtains allow the
interconnection of multiple segments of the Micro 400 safety light
curtain with a common pair of safety outputs. This cascadable
configurability of the GuardShield Micro 400 reduces overall system
wiring and allows the GuardShield Micro 400 to be fitted into a
variety of applications where the safety distances for mounting the
light curtain may allow personnel to stand between the light
curtain’s sensing field and the hazard or where multiple-sided
guarding is required and the use of corner mirrors is not possible.