Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User Instrukcja Użytkownika Pobierz pdf (Strona 41)

Publication 1763-UM001D-EN-P - March 2011

Installing Your Controller 39

Connecting Expansion I/O

The expansion I/O module is attached to the controller or another I/O

module by means of a flat ribbon cable after mounting, as shown below.

TIP

Use the pull loop on the connector to disconnect modules.

Do not pull on the ribbon cable.

TIP

Up to four expansion I/O modules can be connected to a

controller.

ATTENTION

Remove power before removing or inserting an I/O

module. When you remove or insert a module with power

applied, an electrical arc may occur. An electrical arc can

cause personal injury or property damage by:

• sending an erroneous signal to your system’s field

devices, causing the controller to fault

• causing an explosion in a hazardous environment

Electrical arcing causes excessive wear to contacts on both

the module and its mating connector. Worn contacts may

create electrical resistance, reducing product reliability.

WARNING

EXPLOSION HAZARD

In Class I, Division 2 applications, the bus connector must

be fully seated and the bus connector cover must be

snapped in place.

In Class I, Division 2 applications, all modules must be

mounted in direct contact with each other as shown on

page 39. If DIN rail mounting is used, an end stop must be

installed ahead of the controller and after the last 1762 I/O

module.

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Rockwell-automation 1763 MicroLogix 1100 Programmable Controllers User Instrukcja Użytkownika Strona 41