Specifications

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Publication S117-CA001A-EN-P
Presence Sensing Safety Devices
POC Type 4 Safety Light Curtains
2-27
GuardShield Safe 4
GeneralPrinciples
2-Opto-electronics
Safety SwitchesOperator
Interface
LogicPower
R
Description
Features
Applications
 M12 connectors
 Optically synchronized
 Integrated laser alignment system
 IP65 enclosure rating
 Simple installation
 cULus Listed and CE Marked for all applicable directives
 Metal working
 Shears
 Punch presses
 Robot cells
 Automated processes
Specifications
Safety Ratings
Standards
EN/IEC 61496 Parts 1 and 2, UL 61496
Parts 1 and 2, UL1998
Safety Classification
Type 4 per IEC/EN61496. Category 4
device per EN 954-1, SIL 3 per IEC 61508,
PLe per EN/ISO 13849, EN/IEC 61496-1, -
2, UL 61496-1, -2, UL 1998
Certifications
cULus Listed and CE Marked for all
applicable directives
Power Supply
Input Power, Max. 24V DC ± 20%
Maximum Residual Ripple
< 10% of U
sp
Power Consumption <500 mA (no load)
Outputs
Safety Outputs 2 PNP OSSD. 0.3 A, short-circuit protected
Output Voltage
>U
sp
(at load = 0.1 A)
Switching Current @ Voltage,
Min.
300 mA @ 24V DC
Operating Characteristics
Response Time
Varies by protective height, see
Installation Manual
Indicator LEDs ON -State, OFF-State, internal error
Protected Height [mm (in.)]
120…1920 mm (4.7…75.6 in.) in 120 mm
(4.7 in.) increments
Resolution [mm (in.)]
14 mm (0.55 in.)
30 mm (1.18 in.)
Scanning Range
14 mm: 0…9 m (0…29.7 ft)
30 mm: 0…18 m (0…59 ft)
Synchronization Optical, first beam adjacent to LEDs
Wavelength 950 nm
Environmental
Enclosure Type Rating IP65
Relative humidity 15…95% (noncondensing)
Operating Temperature [C (F)] 0…55° (0…131°)
Vibration
IEC 60068-2-6 frequency 10…55 Hz;
amplitude 0.35 mm (0.01 in.)
Shock
IEC 60068-2-29; acceleration 10 g, pulse
duration 16 ms 10…55 Hz; amplitude
0.35 mm (0.01 in.)
Physical Characteristics
Mounting
Rear mounting, standard and adjustable
(180°)
Weight
Varies by protective height, see
Installation Manual
Housing Cross Section 30 x 40 mm (1.18 x 1.57 in.)
Connection Type
Transmitter: 5-pin M12 micro QD
Receiver: 5-pin M12 micro QD
Cable Length 30 m (98.4 ft) max.
ILAS Laser Class Class 2, IEC 60825-1
The Allen Bradley Guardmaster GuardShield Safe 4 is an
economical two box, Type 4 safety light curtain with ON/OFF
functionality. This basic, guard-only operating mode, safety light
curtain has an Integrated Laser Alignment system that simplifies the
alignment of each pair of light curtains. Visible laser beams are
activated by touching the laser at the finger symbol on front face of
the light curtains. Positioning of the transmitter and receiver laser
beams to their respective targets facilitates optimal alignment of
each Safe 4 pair. The Integrated Laser Alignment system also
quickly helps with the re-alignment of pairs when units are knocked
out of alignment during the course of the work process or when
corner mirrors are used.
The GuardShield Safe 4 is designed to be used in a variety of
applications across a broad range of industries in medium to heavy
industrial environments. Offered with shock isolator kits for shock
and vibration applications and protective heights from
120…1920 mm in 120 mm increments assures that the correct size
of safety light curtain is available to suit the application requirement.
The GuardShield Safe 4, with an environmental rating of IP65, meets
all applicable global standards and can be used on or around
industrial machinery and equipment anywhere in the world.