PSEN opII3B Series
Operating Manual PSEN opII3B Series
1004845-EN-02
| 15
NOTICE
Increase in safety light curtain's response time
When beam coding is used, the response time is increased (see Technical
Details)
The general formula for calculating the minimum distance in accordance with
EN ISO 13855 is as follows:
S = K * (t
1
+ t
2
) + C
S
Minimum distance in mm, measured from the start of the protected field to the
danger source
K
Approach speed with which the object to be detected is nearing the danger zone in
mm/s
K = 1600 mm/s
t
1
Response time of the safety light curtain
in seconds
Time it takes for the signal at the OSSD output on the safety light curtain to change
once a protected field has been violated (see
)
t
2
Machine's stopping time in seconds
The time required for the machine to stop after the signal at the OSSD output
changes
C
Additional distance of 850 mm for safety light curtains with body protection
Resolution
The safety light grids may only be used for protected fields in which the detection capability
) 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
.
}
Do not install the safety light grid near particularly intense and/or flashing light sources;
this applies to the receiver in particular.
}
The transmitter of one safety light curtain
must
not interfere with the receiver of another
safety light curtain
.
}
The transmitters and receivers of two different safety light grids must not be synchron-
ised.
}
Avoid strong electromagnetic interference when operating the safety light grid.
}
When operating the safety light grid, avoid the development of smoke, mist, or dust that
would reduce the grid’s operating range.
