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PSEN op2H-SL Series
In accordance with the standard
EN ISO 13855
}
this distance depends on three factors:
Response time of the safety light grid
}
Interval between interruption of the beams and the OSSD's change to the OFF state
Machine's stopping time
}
Interval between the change of the OSSD to the OFF state and the stopping of the haz-
ardous machine movement (including the reaction time of the connected relay)
Approach speed
}
The speed with which the object to be detected is nearing the hazardous area in mm/s
The general formula for calculating the minimum distance in accordance with
EN ISO 13855 is as follows:
S = K * (t
S
K
t
1
t
2
C
Resolution
The safety light grids may only be used for protected fields in which a detection capability of
24 mm is sufficient.
Protected field perimeters
During planning, ensure sufficient protected field height to secure the danger zone.
The protected field perimeter is defined in
Ambient conditions
Install the safety light grids in an environment that corresponds to the environmental
}
data provided in the
Do not install the safety light grid near particularly intense and/or flashing light sources;
}
this applies to the receiver in particular.
Operating Manual PSEN op2H-SL Series
1004304-EN-01
+ t
) + C
1
2
Minimum distance in mm, measured from the start of the protected field to the
danger source
Approach speed with which the object to be detected is nearing the hazardous area
in mm/s
K = 1600 mm/s when S > 500 mm
K = 2000 mm/s when S ≤ 500 mm
Response time of the safety light grid in seconds
Time it takes for the signal at the OSSD output on the safety light grid to change
once a protected field has been violated
Machine's stopping time in seconds
The time required for the machine to stop after the signal at the OSSD output
changes
Additional distance of 128 mm for safety light grids with hand protection
Technical details [
dimensions [
42].
43].
14
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