ABB S800 I/O - Page 6

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5.4 Fault Finding and User Repair.............................................................................97
5.4.1 Introduction.........................................................................................97
5.4.2 Diagnostics and Fault Indications.......................................................98
5.4.3 List of General Fault Finding Procedures and Hints ..........................98
5.4.3.1 Location of Malfunction ..............................................98
5.4.3.2 External Factors ...........................................................98
5.4.3.3 Safety at Start/Stop.......................................................99
5.4.3.4 Check of Power Supply................................................99
5.4.4 User Repair .......................................................................................100
5.4.4.1 I/O Module Replacement ...........................................100
5.4.4.2 Power Supply Module Replacement..........................100
5.4.4.3 Communication Module Replacement.......................102
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A.1 SD811/SD812 Power Supply Module, 24V d.c.................................................105
A.2 TB805/TB806 ModuleBus Cable Adapter-Out/In............................................. 111
A.3 TB807 ModuleBus Terminator .......................................................................... 114
A.4 TB810/TB811 ModuleBus Optical Port ............................................................117
A.5 TB820 ModuleBus Modem ...............................................................................121
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B.1 Power Up on S800 I/O.......................................................................................127
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Figure 1-1. S800 I/O Fieldbus Communication Interface with an I/O Module on
Compact and Extended MTUs ...................................................................1
Figure 1-2. Typical I/O Station Base Cluster with S800 I/O.........................................9
Figure 1-3. Typical I/O Station Base Cluster with Redundant FCIs to S800 I/O .........9
Figure 1-4. TB810/TB811 Optical ModuleBus Port installed in CI810 FCI..............11
Figure 1-5. TB820 ModuleBus Modem......................................................................12
Figure 1-6. TB820 ModuleBus Modem Dimensions..................................................13