Regular thorough check
The thorough check is intended to ensure that the safety functions are fulfilling their
planned purpose and whether persons are being adequately protected.
The following points are often helpful for the definition of the check:
•
Which check must be carried out and how is it carried out?
°
,
°
Visual check of the machine and the protective device
,
•
How often does the check have to be carried out?
•
Do the machine operators have to be notified of the check and do they need to be
instructed accordingly?
b
Define all guidelines for the check.
4.5.1
Test rod check
Overview
The rod test check is used to check whether the hazardous point is only accessible via
the protective field of the safety light curtain and whether the protective device is able
to identify each time the hazardous point is approached.
The test is carried out with an opaque test rod whose diameter corresponds to the
resolution of the safety light curtain.
If several safety light curtains are connected to each other in a cascade, the complete
check for every safety light curtain in the cascade is carried out. During the check,
catch the field indicator of the device you are currently testing.
Important information
DANGER
Use of incorrect test rods
Persons or parts of the body to be protected may not be detected in operation.
b
Only use the test rod with the diameter specified on the type label of the safety
light curtain.
b
If the resolution is reduced, use the test rod that ensures effective resolution of
the safety light curtain.
b
With a reduced resolution and configured Smart Box Detection, use the test
rod that matches the effective resolution of the safety light curtain with a free
protective field.
DANGER
Hazard due to unexpected starting of the machine
b
Make sure that the dangerous state of the machine is and remains switched off
during the check.
b
Make sure that the outputs of the safety light curtain have no effect on the
machine during the check of the components.
4
PROJECT PLANNING
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O P E R A T I N G I N S T R U C T I O N S | deTec4
8021645/1EB0/2022-04-28 | SICK
Subject to change without notice
