►
If a number of pr
otective fields are used (in different monitoring cases for exam‐
ple), check whether the vehicle comes to a stop in time in all of the protective
fields.
►
If necessary, change the position of the test object so that a thorough check is
carried out for each monitoring case to determine whether the protective field is
active over the whole of the required width.
►
Check the height of the scan plane. The scan plane must be at a height of
at least 200mm so that people lying down can be reliably detected. For this
purpose, position the supplied test object at a number of points at the edges of
the largest protective field. The safety laser scanner must detect the test object
at each position and indicate the detection. How it is indicated depends on the
configuration.
If the thorough check reveals an error, the machine should be shut down immediately.
In this case, the mounting and electrical installation of the safety laser scanner must be
checked by appropriately qualified safety personnel.
Test of the contour detection field
If y
ou use contour detection fields, you must test whether each contour detection field
fulfills the intended function.
Notes on planning the test
•
Which contour should be detected at which position? What is the desired result?
•
What is the desired result if the contour is not at the position?
•
What is the desired result if only one part of the contour is at the position?
•
Is it possible for there to be another object at the intended position instead of
the expected object, so that the device still recognizes the contour? What is the
desired result?
If the thorough check reveals a fault, the machine should be shut down immediately.
In this case, the mounting and electrical installation of the device must be checked by
appropriately qualified safety personnel.
Visual check of the machine and the protective device
R
ecommended approach:
►
Check whether the machine or the protective device has been modified or manipu‐
lated so that the effectiveness of the protective device may be impaired.
►
In particular, check the following points:
°
Has the machine been retrofitted?
°
Have machine parts been removed?
°
Have modifications been made to the surroundings of the machine?
°
Are there any defective cables or open cable ends?
°
Have the protective device or its parts been dismantled?
°
Is the protective device damaged?
°
Is the protective device severely contaminated?
°
Is the optical cover contaminated, scratched or destroyed?
°
Has the protective device’s alignment been changed?
°
Are there any objects (e.g. cables, reflective surfaces) in the protective field?
If one of the points applies, the machine should be shut down immediately. In this
case, the machine and the protective device must be checked by appropriately qualified
safety personnel.
4 P
ROJECT PLANNING
54
O P E R A T I N G I N S T R U C T I O N S | nanoScan3 – EtherNet/IP™ 8027909/2023-02-22 | SICK
Subject to change without notice