4.5
Testing plan
The manufacturer of the machine and the operating entity must define all required thor‐
ough checks. The definition must be based on the application conditions and the risk
assessment and must be documented in a traceable manner.
In addition, the device must be checked for correct functioning after each change to the
configuration and each insertion of the system plug.
b
When defining the thorough check, please note the following:
°
Define the type and execution of the thorough check.
°
Define the frequency of the thorough check.
°
Notify the machine operators of the thorough check and instruct them
accordingly.
The following thorough checks are often defined in connection with a protective device:
•
Thorough check during commissioning and modifications
•
Regular thorough check
Thorough check during commissioning and modifications
The test is intended to ensure that the hazardous area is monitored by the protective
device and that unprotected access to the hazardous area is prevented.
The following points are often helpful for the definition of the thorough check:
•
Does the thorough check have to be completed by qualified safety personnel?
•
Can the thorough check be completed by personnel specially qualified and autho‐
rized to do so?
•
Does the thorough check have to be documented in a traceable manner?
•
Can the check be carried out according to a check list? (
commissioning and commissioning", page 115
•
Do the machine operators know the function of the protective device?
•
Have the machine operators been trained to work on the machine?
•
Have the machine operators been notified about modifications to the machine?
•
Does the hazardous area being secured have to be checked with a test rod? (
)
b
Define all guidelines for the thorough check.
Regular thorough check
The test is intended to ensure that the hazardous area is monitored by the protective
device and that unprotected access to the hazardous area is prevented.
The following points are often helpful for the definition of the thorough check:
•
Which thorough check must be carried out and how is it carried out?
°
°
"Visual check of the machine and the protective device", page 48
•
How often does the thorough check have to be carried out?
•
Do the machine operators have to be notified of the thorough check and do they
need to be instructed accordingly?
b
Define all guidelines for the thorough check.
4.5.1
Test rod check
Overview
The light beam is covered with an opaque test rod (diameter of 30 mm). When the light
beam is covered, the INFO LED on the active unit must light up red. The check is carried
out for each light beam and at multiple positions between the active and passive units.
4
PROJECT PLANNING
46
O P E R A T I N G I N S T R U C T I O N S | deTem4 A/P
8024782/2019-11-19 | SICK
Subject to change without notice