Allen-Bradley 1794-IE8H Especificações descarregar pdf (Página 111)

103 Publication 1794-SG002D-EN-P - May 2012

Section

2.4

Select a FLEX Ex I/O Terminal Base Unit

Step 3 – Select:

the appropriate terminal base unit for your module and system

Each FLEX Ex I/O module requires a FLEX Ex I/O terminal base unit that

snaps onto the DIN rail to the right of the I/O adapter. The terminal bases

provide terminal connection points for the I/O wiring and plug together to form

the backplane. They are available with screw, clamp, or spring terminations.

The following table is a comparison of general specifications for each

FLEX Ex I/O terminal base unit. For compatibility with FLEX Ex I/O modules,

see TableDigital I/O Module Summary on page87 and TableAnalog I/O

Module Summary on page91.

Terminal Base Wiring

Diagrams

1797-TB3 and 1797-TB3S

Wiring when total module current draw is less than 8.5 W

Daisy-chaining Using Adapter Power Supply

Use this method when the total module power draw is less that 8.5 W. Otherwise,

power is connected to individual modules.

+V, - V

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Allen-Bradley 1794-IE8H Especificações Página 111