General Information; About The Lsp; Description - WEG LSP Serie Manual Del Usuario

General Information

2 GENERAL INFORMATION

2.1 ABOUT THE LSP

The LSP is an opto-electronic device used to monitor areas in machines which offers risks to
the operator. It has an emitting and receiving unit and together creates a curtain of infrared
beam with a resolution of 14 mm or 29 mm, or a multiple beams system with 300 mm of center
line beam distance.
The LSP can be used in applications where operators need to access to a hazardous area, and
when the dangerous movement of the machine can be stopped at any time. They are usually
applied in hydraulic and eccentric presses, injectors, laminators, forklifts, automated devices,
robots protection and machine assembly.
It is not recommended the use of safety device on machines that can not be interrupted its
hazardous motion.
The LSP provides greater flexibility over other methods such as mechanical barriers, gates,
railings, "keep hands off" devices and other restrictions on the hazardous area, and can simplify
tasks such as installation, maintenance and repairs.
The LSP includes details of construction and operation according to IEC 61496-1 and IEC
61496-2 standards and other important standards related to them, and the safety requirements
of current machines.

2.2 DESCRIPTION

Manufactured in different sizes (height protection), ranging from 200 mm to 1600 mm for models
LSP14 and LSP29, and 600 mm to 1200 mm for LSP300 model, to suit all applications. The
LSP is basically composed of an emitter and a receiver of infrared light, mounted in units with
small, compact and robust dimensions.
The space created between the emitter and the receiver provides the useful monitoring safety
device area.
If an opaque object, like a hand, interrupts a portion of the monitored zone, the safety device
sends a stop safety signal to the machine control. The machine reacts immediately and stops
the hazardous movement before a person can access the danger zone.
If all light beams reach their respective receptors, it means the safety device is optical aligned;
the safety outputs turns on and allow the machine to normal operation.
The LSP uses a set of infrared light beams working with wavelength 940 nm and 65 kHz
modulation, making it immune to natural and artificial ambient light.
The LSP uses a supply voltage of +24 V DC in compliance with regulatory requirements.
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