4.5
Thorough check concept
The safety switch must be tested by appropriately qualified safety personnel during
commissioning, after modifications, and at regular intervals;
thorough check during commissioning and in certain situations", page 14
Regular thorough checks serve to investigate the effectiveness of the safety switch and
discover defects resulting from modifications or external influences (such as damage or
manipulation).
The manufacturer and operating entity must define the type and frequency of the thor‐
ough checks on the machine on the basis of the application conditions and the risk
assessment. The process of defining the thorough checks must be documented in a
traceable manner.
4.5.1
Requirements for the thorough check during commissioning and in certain situations
The protective device and its application must be thoroughly checked in the following
situations:
•
Before commissioning
•
After changes to the configuration or the safety function
•
After changes to the mounting, the alignment, or the electrical connection
•
After exceptional events, such as after a manipulation has been detected, after
modification of the machine, or after replacing components
The thorough check ensures the following:
•
All relevant regulations are complied with and the protective device is active for all
of the machine’s operating modes.
•
The documentation corresponds to the state of the machine, including the protec‐
tive device
The thorough checks must be carried out by qualified safety personnel or specially qual‐
ified and authorized personnel and must be documented in a traceable manner.
b
Check whether the protective device of the machine is effective in all operating
modes in which the machine can be set.
b
Make sure that operating personnel have been instructed in the function of the
protective device before starting work on the machine. The machine operator has
overall responsibility for the instruction, which must be carried out by qualified per‐
sonnel.
4.5.2
Minimum requirements for regular thorough checks
The following thorough checks must be carried out at least once a year:
•
Thorough check of the principal protective function of the safety switch
•
Thorough check of assured sensing range S
ar
•
Thorough check for damage on the switch housing
•
Thorough check for damage on the switch cables
•
Thorough check for signs of misuse or manipulation on the safety switch
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PROJECT PLANNING
14
O P E R A T I N G I N S T R U C T I O N S | IME2S
8023341/14TD/2019-08-08 | SICK
Subject to change without notice