ABB S800 I/O User Manual page 6

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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
5.4.3.2
5.4.3.3
5.4.3.4
5.4.4 User Repair ....................................................................................... 100
5.4.4.1
5.4.4.2
5.4.4.3
SD811/SD812 Power Supply Module, 24V d.c................................................. 105
TB805/TB806 ModuleBus Cable Adapter-Out/In............................................. 111
TB807 ModuleBus Terminator .......................................................................... 114
TB810/TB811 ModuleBus Optical Port ............................................................ 117
TB820 ModuleBus Modem ............................................................................... 121
Power Up on S800 I/O ....................................................................................... 127
S800 I/O Fieldbus Communication Interface with an I/O Module on
Compact and Extended MTUs ................................................................... 1
Typical I/O Station Base Cluster with S800 I/O......................................... 9
Typical I/O Station Base Cluster with Redundant FCIs to S800 I/O ......... 9
TB810/TB811 Optical ModuleBus Port installed in CI810 FCI .............. 11
TB820 ModuleBus Modem...................................................................... 12
TB820 ModuleBus Modem Dimensions.................................................. 13
Location of Malfunction .............................................. 98
External Factors ........................................................... 98
Safety at Start/Stop....................................................... 99
Check of Power Supply................................................ 99
I/O Module Replacement ........................................... 100
Power Supply Module Replacement .......................... 100
Communication Module Replacement....................... 102
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3BSE 020 923R101