Allen-Bradley 2755 Manuel d'utilisateur télécharger pdf (Page 18)

Overview 1–10

Reader Connector

The Reader plugs into this connector. All power and

communications with the Reader occurs through this connector.

I/O Module Sockets

Two sockets support any combination of the following input and

output modules. See specifications in Appendix A.

Description Catalog Number

DC Output Module – rated at 3 to 60 VDC. 2755-OB5S

AC Output Module – rated at 12 to 140 VAC. 2755-OA5S

AC Output Module – rated at 24 to 280 VAC. 2755-OM5S

DC Input Module – accepts 3.3 to 32 VDC. 2755-IB5S

AC/DC Input Module – accepts 90 to 140 VRMS or VDC 2755-IA5S

AC/DC Input Module – accepts 180 to 280 VRMS or VDC 2755-IM5S

I/O Module Terminal Blocks

Wiring connections for the optional input or output modules.

Package Detect Terminal Block

Connects the contacts of a sensor, which detects the presence of a

package in the Reader’s scan area. The package detect can be either

an electronic (current sinking) or a hard contact type device. Most

applications use a photo-reflective type sensor. The package detect

starts and stops decoding and determines when messages are sent or

when outputs are energized.

Power – Indicator LED

Indicates normal operating and fault conditions.

Condition Indicates:

Green Power on.

Red Polarity of the power connections is reversed. Wiring must be

corrected.

Off No power.

Termination Switches

Terminates a DeviceNet and RS-422/RS-485 network. Terminate the

two devices furthest away from each other on a network by moving

the switch to the ON position.

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Allen-Bradley 2755 Manuel d'utilisateur Page 18