3ASC25H209 DATX110 ABB I / O board full series spare parts

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Product Description

Product Description
3ASC25H209 DATX110 ABB I / O board full series spare parts
3ASC25H209 DATX110 ABB I / O board full series spare parts
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The general guidelines regarding qualifications and allocation of responsibilities
given in chapter Organization and Resources on page 50 apply.
The training of operators shall emphasize:
• The safety functions implemented in the SIS
• The hazards the SIS is protecting against
• Routines and procedures for operation of bypass switches
• Routines and procedures for operation of manual shutdown/activation switches
• Procedures for action upon SIS diagnostic alarms
The training of maintenance personnel shall be adapted to the level of maintenance
they will perform. Routine testing of field devices requires different skills than
faultfinding and module replacement in the SIS.
Proof Testing and Inspection
In most system configurations there will be some elements of the SIF that will not
be covered by the system’s automatic diagnostic functions (e.g. sensors, actuators
and field wiring). To avoid fault accumulation within those elements, periodic proof
testing of the safety instrumented functions shall be conducted. The proof test
interval shall be calculated using PFD calculations. This will probably result in
different test intervals for different parts of the SIS.
The proof test interval required for the AC 800M HI is:
• 8 years for central processing unit (PM865 and SM810/SM811)
• 8 years for I/O system and other peripherals
These test intervals are used in 800xA - Safety, Reliability and Availability Data,
3BSE034876* page 381
.
The safety instrumented system (including field devices) shall be visually inspected
at regular intervals, to detect any observable damages.
Records and procedures for handling findings from both proof testing and
inspections shall be created.