Rockwell Automation 442L-SFZNMN SafeZone Mini Safety Laser Scanner User Manual - Manual (Page 73)

Rockwell Automation Publication 10000337275 Ver 01—October 2014 71
Chapter 14 Annex
Glossary
AOPDDR Active opto-electronic protective device responsive to diffuse reflection (e.g. SafeZone Mini, see also CLC/TS 61496­3)
External device monitoring (EDM) A device that electronically monitors the relay or contactor operated by the protective device prior to each new start.
Field set Protective fields and warning fields form the so-called field set.
Optics cover Plastic part with window for light output. The optics cover is available as a spare part.
OSSD (Output signal switching device) The OSSD output is the switching output on the SafeZone Mini. This is a semiconductor
output and is periodically tested for correct function. The SafeZone Mini has two OSSD outputs that operate in parallel; for
safety reasons these must be evaluated using two channels.
Protective field The protective field secures the hazardous area on a machine or vehicle. As soon as the safety laser scanner detects an
object in the protective field, it switches the OSSDs to the OFF state and thus initiates the shutdown of the machine or stop
of the vehicle.
Remission Reflection of luminance. A measure of the remission is the level of remission defined as the ratio of the luminance
reflected from a surface in the measuring direction and the luminance of a completely matte white surface (white
standard).
Resolution/
object 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.
Universal I/O The SafeZone Mini has two universal I/O connections. These two connections can be configured as inputs (e.g. for stand-
by, EDM or reset) or as outputs (e.g. for device error, contamination or second warning field).
Warning field The warning field is a field with a radius of up to 8 m (26.25 ft) (see Chapter 12, “Technical specifications” on page 55).
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 personnel protection.