Table Of Contents - ABB LLT100 Functional Safety Manual

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Table of Contents

1 Introduction
Terms and abbreviations .......................................5
Acronyms ....................................................................6
Support .......................................................................7
Applicable documents ...........................................7
Reference documents ............................................7
2 Description
Instrument version ................................................10
3 Designing an SIF using the LLT100
Safety function ....................................................... 12
Alarm response and current output ........... 12
Overall safety accuracy ...................................14
Restricted modes and parameters ............14
Behavior for undetected faults ....................14
Environmental limits .............................................14
Applications limits .................................................15
Measuring laser safety ........................................15
Design verification ................................................15
SIL capabilities .......................................................15
Systematic integrity ........................................15
Random integrity .............................................15
Safety parameters ...........................................15
General requirements........................................... 17
4 Installation and commissioning
Installation ...............................................................19
Physical location and placement .......................19
Electrical connection ............................................19
Commissioning ......................................................19
Checklist before safety operation.............. 20
Adding password protection ...................... 20
Enabling/Disabling the write protection .. 21
High/Low alarm configuration .................... 21
Verify safety function ..................................... 21
5 Operation and maintenance
Proof test without automatic testing ..............23
Testing the instrument ...................................23
Possible error messages .................................... 25
Maintenance ........................................................... 25
Repair ....................................................................... 25
Software updates ................................................. 25
Useful life ................................................................. 25
ABB notification .................................................... 25
6 Document status
Change record ........................................................27
IEC-61508 certificate ........................................... 28