Safety engineering
Acceptance
Periodic inspections
1
72
EDS94AYAF EN 1.0
Scope of test
A complete test comprises the following:
ƒ Documenting the plant including the safety functions:
– Creating an overview screen of the plant
– Describing the plant
– Describing the safety equipment
– Documenting the safety functions used
ƒ Checking the function of the safety functions used:
– "Safe torque off" function, STO
– "Safe stop 1" function, SS1
– "Safe stop 2" function, SS2
– "Safe operational stop" function, SOS
– "Safe maximum speed" function, SMS
– "Safely limited speed" function, SLS
– "Safe stop emergency" function, SSE
– "Safe direction" function, SDI
– "Safely limited increment" function, SLI
– "Safely limited absolute position" function, SLP
– "Position−dependent safe speed", PDSS
– "Safe cam" function, SCA
– "Safe referencing" function, SREF
– "Repair mode select", RMS
ƒ Preparing the test report:
– Documenting the functional test
– Checking the parameters
– Signing the test report
ƒ Preparing the appendix with test records:
– Protocols from the plant
– External recording
1.9.2 Periodic inspections
The correct sequence of the safety−oriented functions must be checked in periodic
inspections. The risk analysis or applicable regulations determine the time distances
between the tests. The inspection interval should not exceed one year.
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