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The following points must be observed for a correct and safe use of the safety light curtains of
the SG4-Extended series.
CAUTION
•
The stopping system of the machine must be electrically controlled.
•
This control system must be able to stop the dangerous movement of the machine within the total machine
stopping time T as per paragraph "Minimum installation distance" of the Instruction Manual and during all
working cycle phases.
•
Mounting and connection of the safety light curtain must be carried out by qualified personnel only, according
to the indications included in the Instruction Manual (refer to paragraphs "Installation", "Mechanical Mount-
ing", "Electrical Connections", "Alignment Procedure") and in the applicable standards.
•
The safety light curtain must be securely placed in a particular position so that access to the dangerous zone is
not possible without the interruption of the beams (refer to paragraph "Installation" in the Instruction Man-
ual).
•
The personnel operating in the dangerous area must be well trained and must have adequate knowledge of all
the operating procedures of the safety light curtain.
•
The TEST, RESET/RESTART and OVERRIDE buttons must be located outside the protected area because the
operator must check the protected area during all Test, Restart and Override operations.
Please carefully read the instructions for the correct functioning before powering the light cur-
tain on.
NOTE
Precautions to be observed for the choice and installation
Make sure that the protection level assured by the device is compatible with the real danger
level of the machine to be controlled, according to EN ISO 13849-1 or EN 62061.
CAUTION
•
The outputs (OSSD) of the ESPE must be used as machine stopping devices and not as command devices.
•
The machine must have its own START command.
•
The dimension of the smallest object to be detected must be larger than the resolution level of the device.
•
The ESPE must be installed in an environment complying with the characteristics indicated in chapter "Techni-
cal data" of the Instruction Manual.
•
The ESPE must not be installed close to strong and/or flashing light sources, in particular close to the front win-
dow of receiving unit.
•
The presence of intense electromagnetic disturbances could affect device's correct operation. This condition
shall be carefully assessed with the advice of DATALOGIC Technical Service.
•
The operating distance of the device can be reduced in presence of smog, fog or airborne dust.
•
A sudden change in environment temperature, with very low minimum peaks, can generate a small condensa-
tion layer on the lenses and thus jeopardize correct operation.
•
Reflecting surfaces near the safety light curtain light beam (above, under or lateral) can cause passive reflec-
tions that can jeopardize functioning.
•
The safety device must be installed at a distance that is greater or equal to the minimum safety distance S to
ensure that the operator cannot reach the dangerous area until the moving dangerous object has been
blocked by the ESPE
The failure to respect the safety distance reduces or cancels the ESPE protection function. For
more detailed information about calculation of safety distance, please refer to the Instruction
Manual.
CAUTION
1
SG4 EXTENDED
SAFETY INFORMATION
.