b
Test the function of the protective device. To do this, trigger the protective function
once and observe the safety output’s reaction using the reaction of the machine,
for example.
°
All applications: During the test, observe whether the safe multibeam scan‐
ner indicates the interruption of the protective field using the LEDs.
°
Mobile application (mobile hazardous area protection):
•
Place the supplied test object in the path of the vehicle and observe
whether the vehicle stops.
OR
•
Activate a protective field, which is interrupted by at least one test object
and check the expected reaction (for example by an automated test in
the safety controller).
°
Stationary application (access protection):
•
Interrupt the protective field with the intended test object and observe
whether the machine stops.
If the thorough check reveals a fault, the machine should be shut down immediately. In
this case, the mounting and electrical installation of the safe multibeam scanner must
be checked by appropriately qualified safety personnel.
Thorough check of the area to be protected
The area to be protected and the detection capability are checked during this thorough
check.
The thorough check covers the following points:
•
Changes in the detection capability (thorough check of all configured fields)
•
Modifications, tampering and damage to the protective device or the machine,
which lead to changes in the area to be protected or the position of the protective
field
Recommended approach for mobile hazardous area protection:
b
Place the supplied test object in the path of the vehicle and check whether the
vehicle comes to a stop in time.
b
If a number of protective 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.
b
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.
b
Check the height of the scan plane. The scan plane must be at a height of at
least 200 mm 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 area
largest protective field. The safe multibeam scanner must detect the test object
at each position and indicate the detection. How it is indicated depends on the
configuration.
Recommended procedure for access protection:
b
Move the supplied test object along the edges of the area to be protected. The
safe multibeam scanner must detect the test object at each position and indicate
the detection. How it is indicated depends on the configuration. The protective
field must be dimensioned such that reaching around or going around it is impos‐
sible.
b
If a number of protective fields are used (in different monitoring cases for exam‐
ple), check the edges of all protective fields.
If the thorough check reveals a fault, the machine should be shut down immediately. In
this case, the mounting and electrical installation of the safe multibeam scanner must
be checked by appropriately qualified safety personnel.
PROJECT PLANNING
4
8025936/2021-01-08 | SICK
O P E R A T I N G I N S T R U C T I O N S | scanGrid2 I/O
35
Subject to change without notice
