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Rockwell Automation Publication IASIMP-QS024C-EN-P - August 2014 21

Prepare the CompactLogix 5370 L1 Controller Hardware Chapter 1

Install the Local Expansion Module

This quick start uses a 1734-OB4E POINT I/O output module in a local expansion module slot.

1. Make sure the DIN rail locking screw in the mounting base, for example, the 1734-TB mounting base, is in the

vertical position.

2. Align the tongue and groove slots of the

mounting base to the slots on the right side

of the controller and push it back until it

seats on the DIN rail.

3. Use a small-bladed screwdriver to rotate the

DIN rail locking screw to a horizontal

position, locking the mounting base in

place.

4. Set the key position on the mounting base

before installing the 1734-OB4E module.

This example shows position 1.

5. Make sure the output module’s key position

matches the position that is used on the

mounting base. Pull the key out from the

output module to reposition it if necessary.

6. Insert the module straight into the

mounting base and press to secure.

Allen-Bradley CompactLogix 5370 L1 Quick Start

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