ABB S800 I/O - AI815;AI845 Module Details

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Cabinets erected side by side including a controller and I/O configuration are
regarded as a unit, and are connected to the a.c. (d.c.) power in one single
connection point, the centralized Power Switch unit. The switch unit is normally
located in the controller cabinet bay.
The power can be distributed to the I/O cabinets as required by the installed
equipment (Figure 2-20).
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Cabinet 1
Cabinet 2
Controller
S800 I/O
Power
Switch
Phase
Ground
3-wire cables
Neutral
Cabinet Enclosure
Power
Switch
Phase
Ground
Neutral
Power Supp.
Power
Supp.
Power
Supp.