Allen-Bradley 2755 User Manual download pdf (Page 54)

Installing the Wiring Base and Power Supply 3–19

The wiring base supports 2 optional input or output modules. Any of

these modules can be used. These modules function like switches,

they do not supply a voltage. Refer to Appendix A for specifications.

ATTENTION: The wiring base contains hazardous

voltages which can cause shock, burns or death.

Disconnect and lockout all power sources before

servicing. Verify power with meter.

Description Catalog No.

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

All of the I/O modules plug into the wiring base and are secured by a

screw through the module.

Mounting Screw

Connect the I/O wiring to the two I/O terminal blocks. When using

DC modules, observe the polarity of the connections (shown on

circuit board or label on wiring base insulating cover).

I/O Connectors

I/O Modules

Earth Ground

Wiring Base

ules

d Wi

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Allen-Bradley 2755 User Manual Page 54