Rockwell Automation 442L SafeZone Singlezone & Multizone Safety Laser Scanner - Manual (Page 57)

SafeZone™ Safety Laser Scanner User Manual
10000073050, July 2011 55
R
Original instructions
13.2 Glossary
AOPDDR Active opto-electronic protective device responsive to diffuse reflection (e.g. SafeZone safety laser scanner, see also IEC/
EN 61496-3)
Control Input, static The monitoring cases are switched using the control inputs. The SafeZone safety laser scanner has one static control
input.
External device
monitoring (EDM)
A means by which the electro-sensitive protective equipment (ESPE) monitors the state of control devices which
are external to the ESPE.
Field set Protective safety field and warning field form a pair, the so-called field set.
I/O module Defines the functionality of the SafeZone safety laser scanner.
Monitoring case A field set (if necessary a simultaneous field set) is allocated to a monitoring case. Monitoring case switching is performed
using the control inputs. In this way the SafeZone safety laser scanner can be adapted to the operating mode of the
machine or equipment that it monitors.
OSSD The OSSD output is the switching output on the SafeZone safety laser scanner. This is a semiconductor output and
is periodically tested for correct function. The SafeZone safety laser scanner has two OSSD outputs that operate in
parallel; for safety reasons these must be evaluated using two channels.
Protective safety field The protective safety field secures the hazardous area on a machine or vehicle. As soon as the safety laser scanner detects
an object in the protective safety field, it switches the OSSDs to the off status and thus initiates the shutdown of the
machine or stop of the vehicle.
Reflectivity Reflection of luminance. A measure of the reflectivity is the reflectance defined as the ratio of the luminance
reflected from a surface in the measuring direction and the luminance of a completely matt white surface (white
standard).
Resolution The minimum size of an object that is acquired by the protective device and is guaranteed by the manufacturer
Restart interlock The restart interlock is a protective device. In certain situations it prevents the machine from automatically
restarting. This applies, e.g., after the scanner function has triggered during a dangerous machine state, after a
change to the operating mode or the method of activation of the machine, or after the change to the start control
device on the machine.
Sensor head Contains the opto-electronic acquisition system.
System plug Contains the configuration memory and all electrical connections. In this way the SafeZone safety laser scanner can
be easily replaced. After re-commissioning the configuration is loaded from the system plug; the SafeZone
multizone safety laser scanner is then, normally, ready for use.
Warning field The warning field is a field with a radius of 49 m. Using this field larger areas can be controlled and simple switching
functions (e.g. warning functions) triggered. The warning field is not allowed to be used for tasks related to the
protection of people.