Specifications

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Publication S117-CA001A-EN-P
Presence Sensing Safety Devices
POC Type 2 Safety Light Curtains
2-43
GuardShield Type 2
GeneralPrinciples
2-Opto-electronics
Safety SwitchesOperator
Interface
LogicPower
R
Description
The Allen-Bradley Guardmaster GuardShield Type 2 safety light
curtain is a self contained “two box,” Type 2 safety light curtain.
Designed for use on or around machinery in which a formal risk
assessment has determined that a Type 2 safety device is of a
sufficient level of safety to meet the guarding application, the
GuardShield Type 2 is the ideal solution. GuardShield Type 2 is
offered in either a “Guard Only” operating mode or in a factory
configured operating mode of restart interlock with external device
monitoring. In either operating mode, the GuardShield Type 2 safety
light curtain will provide the appropriate level of protection to
personnel.
The GuardShield Type 2 is designed to protect personnel from
equipment or machinery hazards where the risk of injury are low. A
formal risk assessment should be performed prior to selecting the
proper safeguarding device. In many instances it is necessary to use
a combination of safety devices to assure complete protection of
personnel from hazards.
ATTENTION
Safety light curtains of a Type 2 level of
safety typically do not meet OSHA or ANSI
requirements of “Control Reliability,”
therefore it is not allowable to use a safety
device of a Type 2 level on or around
equipment or machinery that requires
“Control Reliability.”
Applications
 Conveyors
 Packaging machinery (excluding palletizers)
 Textile machinery
 Automated assembly lines
 Automatic storage and retrieval machinery
Specifications
Safety Ratings
Standards
IEC/EN 61496 Parts 1 & 2, UL 61496 Parts
1 & 2, UL 1998
Safety Classification
Type 2 per IEC/EN61496. Category 2
device per EN 954-1, SIL 2 per IEC 61508,
PLd per EN/ISO 13849
Certifications
CE Marked for all applicable directives, UL
1998 Listed, cULus Listed, and TÜV
Power Supply
Input Power, Max. 24V DC ±20%
Maximum Residual Ripple 0.05 Vss
Power Consumption 400 mA max (no load)
Outputs
Safety Outputs 2 OSSDs, 0.5 A, short-circuit protected
Non-Safety Outputs 1 auxiliary output, 0.5 A max.
Output Voltage, Min.
U
v
- 2V
Switching Current @ Voltage,
Min.
500 mA @ 24V DC
Operating Characteristics
Response Time 20 ms
Status Indicators On state, off state, alignment, interlock
Protected Height—mm (in)
160…1760 (6.3…69.36) in 160 (6.3)
increments
Resolution [mm (in.)] 30 (1.18)
Scanning Range 16 m (52.5 ft)
Synchronization
Optical, without separate synchronization
channel
Wavelength 870 nm
Environmental
Enclosure Type Rating IP65
Relative Humidity 15…95% (noncondensing)
Operating Temperature [C (F)] -10…55° (14…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
Physical Characteristics
Mounting End-cap mounting brackets
Weight Varies by protective height
Housing Cross Section 40 x 50 mm (1.57 x 1.96 in.)
Connection Type
Transmitter: 4-pin micro QD
Receiver: 8-pin micro QD
Cable Length 30 m (100 ft) max.