2 Product Overview
The SX5 Safety Laser Scanner is an electro-sensitive protective equipment (ESPE). It employs active opto-electronics
productive devices responsive to the diffuse reflection of a radiation (AOPDDRs), according to the definition and
requirements of international safety standard IEC 61496-3. The optical radiation is a class 1 infrared laser generated within
the device.
When the device is properly installed on a machine that presents a risk of personal injury, it provides protection by making
the machine revert to a safe condition before a person reaches the hazardous points.
The working principle is that the invisible beam of the laser creates a two-dimensional safety area that must be crossed to
reach the dangerous points. In this way the dangerous movement of the machine can be stopped before anyone reaches
the hazard point.
The safety area can be horizontal or vertical and by using a Graphic User Interface, its shape can be planned according to
the application needs.
The beam is emitted in short interval pulses and they are reflected by objects in the safety area. The device calculates the
distance to the object by measuring the time interval between the transmission of the pulse and its reception after being
reflected (time-of-flight principles).
The safety area is scanned by a mirror that deflects the light pulses over the 275° area around the device by rotating at a
constant speed. In this way, all the opaque objects that have a certain dimension can be detected in the safety area.
Within the sensing range of the scanner, two areas can be monitored simultaneously: one is the Safety Zone, that is used to
detect operators or objects entering a hazardous area; the other is the Warning Zone that can be defined with a longer
distance than the Safety Zone, allowing a configuration to detect objects that are approaching the Safety Zone.
Configurations can also be created with one Safety Zone and two different Warning Zones.
The scanner will only turn its Safety Outputs ON when the Safety Zone is free of obstructions, either automatically or
following a manual restart (reset) signal, depending on the operating mode.
The scanner should be connected to a self-checking safety module, safety controller, or safety PLC/PES that has the ability
to perform the external device monitoring (EDM) function. This function ensures the fault detection capability required by
U.S. Control Reliability and ISO 13849-1 Category 3 or PL d for controlling final switching devices (FSDs) or Machine
Primary Control Elements (MPCEs). The device that the scanner is connected to must perform to the level of performance
required by the risk assessment.
Warning Zone (WZ)
Safety Zone (SZ)
Figure 1. The maximum Safety Zone (5.5 m) and Warning Zone (40 m)
Key
Description
Distance
SZ
Maximum Safety Zone range
5.5 meters
WZ
Maximum Warning Zone range
40 meters
2.1 Models
A SX5 Safety Laser Scanner System refers to the laser scanner, cordsets (ordered separately), and mounting hardware
(ordered separately). Interfacing solutions include safety modules, controllers, and muting modules.
Model
Description
SX5-B
SX5 Safety Laser Scanner, basic model
SX5 Safety Laser Scanner
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