ABB FPTC-01, Руководство пользователя

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74 Maintenance
If you change any wirings or components after the start-up, replace
the FPTC-01 module, modify drive or FSO parameters or restore
parameters to their factory default values, you must:
•
Use only ABB approved spare parts.
•
Register the change to the change log for the safety circuit or
logbook of the machine.
•
Test the safety function again after the change. Obey the rules
given in chapter
Start-up and acceptance test .
•
Document the tests and store the report into the logbook of the
machine.
Proof test interval
After the operation of the safety function is validated at start-up, the
safety function must be maintained by periodic proof testing. In
high demand mode of operation, the maximum proof test interval is
20 years. In low demand mode of operation, the maximum proof
test interval is 2 years (high or low demand as defined in
IEC 61508, EN/IEC 62061 and EN ISO 13849-1). Regardless of
the mode of operation, it is a good practice to check the operation
of the safety function at least once a year. Do the test as described
in chapter
Start-up and acceptance test .
The person responsible for the design of the complete safety
function should also note the Recommendation of Use
CNB/M/11.050 published by the European co-ordination of Notified
Bodies concerning dual-channel safety-related systems with
electromechanical outputs:
•
When the safety integrity requirement for the safety function is
SIL 3 or PL e (cat. 3 or 4), the proof test for the function must
be performed at least every month.
•
When the safety integrity requirement for the safety function is
SIL 2 (HFT = 1) or PL d (cat. 3), the proof test for the function
must be performed at least every 12 months.