19
After
commissioning,
the
safe
actuator
function
must
be
verified.
Refer
to
<Proof
test>
chapter.
Regular maintenance and device checks in determined T intervals are the basis for safe
proof
operation. The figures indicated in the <Safety figures> chapter are valid for T = 1 year.
proof
For operation, both the pertaining operation instructions and the manual (Operation and
setting) SA series with epac 3.XX /NI/SIL have to be observed.
In case of possible failures or defects of the safety system, safe function must be guaranteed
by introducing alternative actions. Furthermore, a detected fault including fault description
has to be sent to AUMA. Autonomous repair work by the plant operator is not permitted.
Lifetime of actuators is described in the technical data sheets or the operation instructions.
Safety-related figures are valid for the cycles or modulating steps defined in the technical
data specifications for typical periods of up to 10 years (the criterion achieved first is valid).
After this period, the probability of failure increases.
Extending this period is basically feasible in many cases provided both manufacturer and
operator introduce respective actions in compliance with footnote N3 of IEC 61508-2:2010
7.4.9.5 b). This is the responsibility of the operator who will have to take appropriate and
suitable measures. Please contact us if you need support in identifying suitable measures.
When decommissioning an actuator with safety functions, the following must be observed:
• Impact of decommissioning on relevant devices, equipment on other work must be
evaluated.
• Safety and warning instructions contained in the actuator operation instructions must be
met.
• Decommissioning must be carried out exclusively by suitably qualified personnel.
• Decommissioning must be recorded in compliance with regular requirements.
Multi-turn actuators
SA series with Control 3.XX /NI/SIL
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