ABB ACS880-07CLC

Maintenance
Contents of this chapter
This chapter contains information for the maintenance and decommissioning of the safety
function.
Safety circuit maintenance
After the safety function is validated, it must be maintained by:
• periodic proof testing
• replacing the main contactor/breaker before the end of its specified lifetime.
See the contactor/breaker data sheet or manual.
If you change the wiring or a component after the start-up, or restore parameters to their
factory default values:
• Use only ABB-approved spare parts.
• Register the change to the change log for the safety circuit.
• If parameters were restored to the factory default values: Set the parameters related to
the safety function.
• Do the validation test of the safety function.
• Document the tests and store the report into the logbook of the machine.
Proof test interval
Proof tests are used to detect failures in the safety function. To do a proof test, use the
validation test procedure given in this manual.
Periodic proof testing of the safety function is necessary to maintain the required SIL/PL-level.
In high demand mode of operation, the maximum proof test interval is 20 years. In low
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Maintenance 31