Chapter, Product description – Rockwell Automation 442L-SFZNMN SafeZone Mini Safety Laser Scanner User Manual User Manual
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Rockwell Automation Publication 10000337275 Ver 01—October 2014
Chapter 3
Product description
Chapter
3
Product description
This chapter provides information on the special features and properties of the SafeZone Mini safety laser scanner. It
describes the construction and the operating principle of the device.
Special features
•
Small design
•
270° scan area
•
Increased dust and particle tolerance due to light saturation and particle algorithms
•
With scanning ranges of two or three meters maximum protective field radii)
•
Configuration using PC or notebook with Rockwell Automation SCD software
•
Field sets comprising of one protective field and up to two warning fields
•
Contour monitoring of the protective field if only one warning field is used
•
Only standalone operation
•
One field set
•
One monitoring case
•
Integrated external device monitoring (EDM)
•
Integrated restart interlock/restart interlock delay for which the parameters can be set
•
Two universal I/O connections
Function
The SafeZone Mini safety laser scanner operates correctly as a protective device only if the following conditions are met:
•
The control of the machine, system or vehicle must be electrical.
•
It must be possible to transfer the dangerous machine, system or vehicle state to a safe state using the OSSDs on the
SafeZone Mini at any time, i.e. before a person has reached the hazardous point or hazardous area.
Or:
It must be possible to transfer the dangerous state of the machine, the system, or the vehicle to a safe state at any time
using the OSSDs on a safety controller connected to the SafeZone Mini.
•
The SafeZone Mini must be mounted and configured such that it detects objects as they enter the hazardous area (see
Chapter 5, “Mounting” on page 35 and Chapter 9, “Commissioning” on page 47).
•
The safety laser scanner’s optical path must always remain clear and is not allowed to be covered by transparent
objects such as protective windows, Plexiglas, lenses etc. The safety laser scanner’s protective function can only be
ensured if the contamination measurement function is not bypassed by such measures.
Principle of operation
The SafeZone Mini is an optical sensor that scans its surroundings in two dimensions using infrared laser beams. It is used
to monitor hazardous areas on machines or vehicles.
Fig. 1: Principle of operation,
time-of-flight measurement
by the SafeZone Mini
SafeZone Mini
Send pulses
Receive pulses
Send pulses
Receive pulses